نشریه شیمی کاربردی روز
پیاپی 58 (بهار 1400)

The presence of sulfur compounds and mercaptans in oil cuts causes environmental contamination and leads to corrosion in transmission lines and storage tanks. Therefore, it is necessary to reduce the amount of sulfur and mercaptans in oil cuts to international standards. Metal- organic frameworks are a class of nano-porous adsorbents that have been identified for storing and separating gases and utilizing energy and environmental regeneration. This paper using experiments and molecular simulations, attempts to investigate the removal of sulfur compounds from gasoline. In experimental desulfurization tests thiophene and benzothiophene, which are aromatic sulfur compounds in gasoline were used as a model. The desulfurization process was selected by some metal-organic frameworks with 0.05g of mass for 8 hrs at 308K. In the molecular simulation part, a model was defined for gasoline that included a binary mixture of normal-hexane/benzothiophene, normal-hexane/thiophene, and normal-hexane/ethanethiol. The amount of adsorption and selection of sulfur compounds in metal-organic frameworks was investigated. The best separation in the mixture of normal-hexane and sulfur compounds was related to a molar fraction of 0.01 at 318K, which was equal to 12602.92 for benzothiophene and normal-hexane mixtures, for the mixture of thiophene and normal-hexane is 628.49, and obtained for the mixture of ethanethiol and normal hexane at 50.699. The results of adsorption and adsorption diagrams of sulfur compounds on metal-organic frames-in both experimental and simulation sections showed that MIL-47(V) had the highest selectivity and adsorption for sulfur compounds. In both experimental and molecular simulations, it was found that metal-organic frameworks could be a good detergent for sulfur compounds to obtain clean fuel.

In this study, zinc titanite nanoparticles were synthesized using the solvothermal method. The effects of pH and calcination temperature on the structures, morphology and photocatalytic activity of the resulting compounds were investigated.These nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), emission reflectance spectroscopy (DRS), X-ray energy dispersive spectroscopy (EDAX), Photoluminescence (PL) and UV-Vis spectroscopy.X-ray diffraction patterns confirmed the cubic pure ZnTiO3 structures synthesized at pH= 3 and calcination temperature of 700 ° C and hexagonal at pH=3 and pH=7 and calcination temperature of 800 ° C. Crystallinity was not visible in scanning electron microscope images. Also, full cubic and hexagonal structures of ZnTiO3 nanoparticles are easily visible in transmission electron microscopy images. In investigation photocatalytic results, Photocatalytic degradation kinetics data were evaluated by pseudo-first-order kinetics model. The efficiency of methylene blue dye degradation under visible light of the catalysts ZTO-10-900, ZTO-7-800, ZTO-3-700 was 95%, 83% and 78%, respectively. In ZTO-10-900 catalyst the presence of 423 and 527 nm bands in the photoluminescence emission spectra indicates the presence of crystalline defects in this compound and the major factor contributing to the higher efficiency in photocatalytic activity.

In this work, a simple and inexpensive dispersive micro solid-phase extraction method using magnetic molecular imprinted polymer nanocomposite and deep eutectic solvent and optimization by central compound design method was developed for selective determination of dipyridamole in pharmaceutical and biological samples. The synthesized nanocomposite was used to enhance the extraction efficiency of the adsorption and desorption step, also a deep eutectic solvent was used for the desorption of the analyte and the detection was performed by high performance liquid chromatography with an ultraviolet detector. Simultaneous optimization of effective parameters include the adsorbent dosage (w), desorption sovent volume (v), and desorption time (t) was performed by the central compound design method. After optimization, the maximum adsorption capacity of the analyte on the magnetic molecular imprinted polymer adsorbent for dipyridamole 2.82 mg g-1 and the obtained linear range for the method was 0.008-1200 μg L-1. Limit of detection and quantitation were also obtained 0.003 µg L-1 and 0.009 µg L-1, respectively. The relative standard deviation of the method by inter-day test for concentration levels of 5, 50 and 150 µg L-1 were 3.26%, 2.09% and 3.41%, respectively, and by intra-day test for the same concentration levels were less than 4%. . Finally, this very method was successfully used for preconcentation and determination of dipyridamole in plasma, serum and tablet samples with a standard deviation of less than 4%. Keywords: Dipyridamole; Micro solid phase extraction; Magnetic nanoparticles ; Molecular imprinted polymer; Deep Eutectic Solvent; Central composite design

In this paper, the synthetic parameters of electrochemical oxidation of carbon cloth including electrolyte temperature, electrolyte refreshing, cation content and concentration of oxidant, oxidation time and applied potential were studied. The electrochemical behaviors of oxidized carbon cloths were examined by cyclic voltammetry (CV) and galvanostatic charge/discharge (GCD) in sulfuric acid (H2SO4) as electrolyte using a potentiostat/galvanostat analyzer. The electrochemical oxidation was carried out using a potentiostat technique in the presence of ammonium sulfate ((NH4)2SO4) as an inorganic oxidant. Results indicated the optimum synthetic parameters for achieving a high capacitance oxidized carbon cloth. In second part, the electrochemical oxidation of carbon cloth using the optimized parameters was comprised with hydrothermal oxidation route by using concentrated nitric acid (HNO3) regarding the electrochemical activity of their resultant oxidized and activated carbon cloths. The results showed that the electrochemical oxidation is desirable route for activating the carbon cloth quickly for use in supercapacitor applications.

In this study, Lanthanum doped Zinc oxide/graphene oxide (La: ZnO/GO) nanocomposites were investigated as an effective catalyst for the sonocatalysis of methylene blue solution. The (La: ZnO/GO) nanocomposites with different amounts of La3+ (3,6 and 9 atom%) were synthesized via a simple method( precipitation method ) and SEM & TEM image showed the presence of ZnO nanorods on the surface of graphene sheet. The presence of lanthanum was confirmed by EDX analysis. The sonocatalytic degradation of methylene blue dye was studied in the presence of ultrasound alone and also in the presence of nanocomposites prepared. The results showed that La: ZnO(3%)/GO sonocatalysts exhibit the highest methylene blue degradation efficiency. The effective factors on dye degradation in the presence of ultrasound were optimized and optimal values including 0.1 g catalyst dosage, 10 mg / L initial concentration of dye and 80 minutes contact time with a reaction rate constant of 0.0158 min-1 were obtained.

In the present work, two new phosphorus(V)-oxygen compounds [2-Cl-6-F-C6H3C(O)NH]P(O)[NHC6H3(3,5-CH3)2]2 (compound 1) and [P3O9][(CH3)3CNH3]3 (compound 2), belonging to the families of “phosphoramide” and “cyclo-triphosphate”, respectively, are synthesized and structurally studied by using single-crystal X-ray diffraction analysis. Compounds 1 and 2 crystallize in the monoclinic space group P21/c and the hexagonal space group P63, respectively. The asymmetric unit is composed of one complete phosphoramide molecule for 1 and one t-butyl ammonium cation and one-third of cyclotriphosphate anion for 2. In both structures, phosphorus atom adopts a distorted tetrahedral conformation, in the P(O)(N)3 (for 1) and P(O)4 (for 2) environments. In the crystal structure of 1, a one-dimensional linear arrangement is formed along the a-axis by linking neighboring molecules via normal hydrogen bonds N—H•••O. Further stabilization of this structure as a three-dimensional network is provided by the weak interactions C—H…O═P, C—H…, and C—H…Cl. In the crystal structure of 2, a three-dimensional network is displayed consist of hexagonal units formed by the connection of t-butyl ammonium cations and cyclotriphosphate anions via normal hydrogen bonds N—H•••O.

Environmental Protection Agency of America has classified heavy metals such as Cd, Hg, As, Ni, Pb and Cr, as the toxic pollutants of environment. These elements imported into the environmental cycle by the chemical industries and other industries, such as water, agricultural products and human body, and ultimately its harmful effects on human. In this respect, separating and removal of heavy metals is an important task in controlling environmental pollutants. In the recent years the usage of nanoparticles as an adsorbent with high adsorption efficiency has attracted a lot of attention. Nano graphene oxide used in this study is classifying in the category of high capacity adsorbents due to its high specific surface area. In this study in addition to graphene oxide, Almond shell and Carboxymethyl cellulose were also used to improve the removal efficiency of heavy metals. The aim of this research is to synthesize Graphene oxide nanoparticles modified with Almond shell and Carboxymethyl cellulose and also to evaluate its performance in the removal of nickel and cadmium from water. The Nano Graphene oxide was synthesized by the Freeze- drying method and in order for characterization of the synthesized nanoparticles, FT-IR and SEM methods were used. Various parameters such as pH solution, contact time and adsorbent amount were investigated and the optimal values of each of factors were determined. The modeling of the absorption process was carried out using two models of Langmuir and Freundlich isotherms and the results show that the adsorption rate is consistent with the Langmuir isotherm model for nickle and Freundlich isotherm for the adsorption of cadmium. The results showed that the modified nanoparticles have better absorption capacity than unmodified ones, and its effectiveness to remove the element of Cd is more than Ni.

Synthesis of nanoparticles by co-precipitation is one of the most efficient, inexpensive and effective methods. Control of the important parameters on the synthesis of nanoparticles, such as surfactant type, pH of the environment, reaction time, adding the rate of the base solutions, etc., play a significant role in the synthesis of nanoparticles. Generally nanoparticles with smaller size and appropriate dispersion (non-agglomeration) have higher efficiency and, show greater performance. In this study, we synthesized magnesium hydroxide nanoparticles by co-precipitation method and characterized by using scanning electron microscopy (SEM), X-ray diffraction spectroscopy (EDX), X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FT-IR) the accuracy of the synthesis method, also the effect of the CTAB surfactant and the rate adding of the base solution in the method were examined. The results indicated that using CTAB surfactant can help to prevent of agglomeration and, consequently, led to best dispersion in different solutions and also increasing of the speed of addition of base solutions, led to a reduction of the dimensions and thus improve the performance of these nanoparticles.

In this approach, we demonstrate a very simple, easy and fast electrodeposition method to form nickel hydroxide (Ni(OH)2) thin film which is able to catalyze the water electro-oxidation reaction. Cyclic voltammetry and bulk electrolysis with Ni(OH)2 film in aqueous solution (pH 10.0) exhibited good catalytic current. The nickel oxide film was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and voltammetric methods. The results shows that Ni(OH)2 film is a robust heterogeneous water oxidation catalyst which has been used in long time without missing efficiency. The effect of several parameters in electro-synthesize of nickel hydroxide such as the kind of nickel salts, supporting electrolyte, pH and electrodeposition time of nickel hydroxide were investigated on water oxidation efficiency. The film exhibits an overpotentials of 60 mV and 540 mV at the onset of catalytic current in borate supporting electrolyte at around 1 mA cm-2 and 10 mA cm-2 in pH 10.0, respectively. The catalytic performance of the material is demonstrated by long-term electrolysis at 1.1 V versus saturated calomel electrode (SCE) with a stable current density ~ 4.5 mA for pH 10.0 (for at least 5 h), and a Faradaic efficiency of almost 97% is obtained.

Using hydrothermal method of reaction of Fe3O4 with cerium nitrate, magnetic nanoparticles of Fe3O4 @ CeO2 were prepared with average size 28-29 nm and detected by Fourier Transform Infrared Spectroscopy (FT-IR) and X-ray diffraction (XRD). The peak corresponding to each of the oxides was detectable in IR, and the successful synthesis of this nanocatalyst was confirmed by XRD. By studying the properties of nanocatalysts synthesized by vibrational sample magnetometry (VSM), its superparamagnetic properties were determined and its other properties were analyzed by scanning electron scanning electron microscopy (FE-SEM), X-ray diffraction (EDS) spectroscopy (X-ray diffraction spectroscopy). ) Checked out. The resulting shell – core structure of the nanocatalyst was fixed using XRD and EDS. Subsequently Fe3O4 @ CeO2 was used as an effective catalyst in the reaction of green synthesis of diindolyl oxindole derivatives from the coupling reaction between indole and isatin derivatives in the presence of water solvent. The reaction conditions in the presence of different catalysts were compared with the catalysts presented in this paper, which provided high speed and efficiency of this nanocatalyst. Easy separation (by external magnetic field), reusability in the reaction medium without significant loss of performance and non-toxicity are other advantages of this nanocatalyst.

In this research, a novel material namely N,N,N',N'-tetramethylethylenediaminium-N-(silica-n-propyl)-N'-sulfonic acid chloride trifluoroacetate ([TEDSPSCT]) was synthesized, and its structure was characterized using Fourier-transform infrared spectroscopy (FT-IR), energy-dispersive X-ray (EDS), field emission scanning electron microscopy (FE-SEM), thermal gravimetric (TG), differential thermal gravimetric (DTG) and x-ray diffraction (XRD); most of the partcles were in nano-size, and a few of them were in micro-size. Afterward, [TEDSPSCT] was used as effective and recyclable catalyst for the preparation of bis-coumarins via the reaction of 4-hydroxycoumarin (2 equivalents) with arylaldehydes (1 equivalent) under solvent-free conditions; these compounds were obtained in high yields and short reaction times. Moreover, an attractive and logical mechanism based on dual-functionality of the catalyst has been described {this catalyst has both acidic group (SO3H) and weak basic group (trifluoroacetate)}.

In the study, reaction of the 4-methoxy salicylaldehyde 2-aminobenzoylhydrazone(H2L) with MoO2(acac)2 formed a 5-coordinate Molybdenum(VI) complex [MoO2L]. The synthesized complex and its ligand were characterized with various techniques such as NMR, UV-Vis, FT-IR Spectroscopy and elemental analysis (CHN). Molecular structure of Mo(VI) complex is determined by X-ray crystallography , indicating the dianionic tridentate. The crystallographic data revealed a distorted square-pyramidal geometry.The biological activities of Schiff base ligand, H2L, and the biological role of Mo(VI) metal ion in vitro conditions against four strains of bacterial standard Gram positive and Gram negative investigated. The results indicated that the highest antibacterial activity against Escherichia coli was related to the MoO2L complex. The results of the present study showed that the complex had a stronger antibacterial activity than ligand.

Recently, various methods have been developed for the preparation of hydrophilic surfaces such as wax solidification, lithography, electrochemical assemblies, hydrothermal, and sol-gel processes. Among these methods, sol-gel, which is the basis of chemical reactions in the solution, provides ground-level engineering for the researcher. In this study, a sol-gel-derived method for coating concrete substrates with a thin layer of a synthesized silica-based solution is presented. In this method, the tetraethyl orthosilicate compound is used as a precursor, octyltriethoxysilane, which has a large alkyl group, as modification agent and ethanol and methanol as solvent is used. Moreover, the effect of modifier agent on surface hydrophobic properties was investigated. The structure and morphology of synthesized solutions were described by infrared spectroscopy and atomic force microscopy images. Also, the contact angle of water, which indicates the surface hydrophobicity, was measured by the modifier agent in various ratios. The contact angle of the drop of water with the surface of hydrophobic concrete was about 141 degrees. Also, immersion test and water absorption for concrete specimens were prepared. For concrete, the amount of water absorption during 24 hours was 25 grams, while water absorption for hydrophobic concrete decreased to 9 grams. In another test, to investigate the effect of the synthesized solution on the actual samples, the hydrophobic effect followed by self-cleaning on samples of concrete and brick has been successfully carried out. According to the results of this study, the resulting hydrophobic solution can well boost the samples of concrete, stone, bricks, and any substrate based on silica. This synthesized solution, by creating an angle of drop of water up to 141 degrees, causes these surfaces to be hydrophobicity and self-cleaning effect.

The structure of [NiLCl]Cl•H2O (2), which synthesized by condensation reaction of 2-(3-(2-formylphenoxy)-2-hydroxypropoxy)benzaldehyde and 1,3-diamino-2-propanol in the presence of NiCl2•6H2O at methanol, has been determined by single-crystal X-ray diffraction. Distorted octahedral coordination environment around Ni(II) ion is constructed by two imine nitrogen atoms, two ether oxygen atoms, one alcohol oxygen atom, and one chloride anion. The complex (2) is pesudopolymorph for the previously reported [NiLCl]Cl•0.75H2O (1) complex [1]. There are two formula units [NiLCl]Cl per asymmetric unit of both complexes. Each asymmetric unit of (1) and (2) includes two water molecules of crystallization, although one of the two water molecules in (1) has half-site occupancy. The optimized structure of (2) and similar compounds by Cl replacement with Br and I in DFT/B3LYP level of theory using LANL2DZ (for nickel and halogen) and 6-31G(d,p) (for the other elements) basis sets illustrate good agreement with experimental ones. Based on optimized structures of three compounds, their polarizability and hyperpolarizability were calculated at the same level to predict their nonlinear optical(NLO) properties. The calculated NLO values of the compounds are much greater than the corresponding value of urea.

In this research coated palladium nanoparticles was synthesized on modified GO by thymbraspicata extract with simple and green procedure and used as adequate and renewable nanocatalyst for Suzuki coupling reactions between phenylboronic acid and different aryl halides. The Pd NPs/RGO Nanocatalyst was synthesized by surface modification of GO and in-Situ reduction. The extract of Thymbraspicata was used as a reducing and immobilizing agent for Pd nanoparticles. The results show that Pd(0) nanoparticles are completely dispersed on the GO functionalized surface. Pd NPs/RGO nanocatalyst as a recoverable nanocatalyst shows high catalytic activity in Suzuki coupling reaction. In addition, the synthesized catalyst can be reused several times without significant altering its catalytic activity.

In the present work, graphene oxide was first synthesized from graphite and then modified with thioacetamide. Modified graphene oxide was characterized using SEM and FT-IR techniques. Subsequently, the removal of mercury (II) from aqueous media using modified graphene oxide as adsorbent was studied. The best conditions for mercury (II) removal were: solution pH, adsorbent amount, contact time, and shaker speed, respectively, 3 ، 0.05 g, 10 min and 100 rpm, respectively. Adsorption kinetics of Hg (II) on modified graphene oxide followed the pseudo-second-order kinetic model. The Langmuir and Freundlich isotherms were studied for experimental results and these studies showed that the Langmuir isotherm model is in good agreement with the absorption data. The results showed that modified graphene oxide can be effectively used to remove mercury (II) from aqueous and wastewater samples.

Hole transport materials (HTMs) are one of the most important components in perovskite solar cell (PSC) which their presence play as a key factor to achieve the high efficiency of conversion of solar irradiation to electricity. That is why the searching of new efficient and cost-effective HTMs for using in PSC is one of the hottest research objects in PSC filed. In this paper, a new generation of a bi-nuclear organic HTM for using in PSC has been prepared and introduced. Bi-nuclear organic-HTM bis(4-(4,5-diphenyl-2-(p-tolyl)-4,5-dihydro-1H-imidazol-1-yl)phenyl)methane, namely MDA-PI2 , based on benzyl imidazoles was synthesized and fully characterized and finally was applied as a bi-nuclear organic HTMs in PSC. Since the photophysical, photochemical and electrochemical properties of HTMs play key role in a PSC, a variety of analysis and measurements including cyclic voltammetry, thermal stability, photoluminescence and water contact angle were carried out which indicated the promising performance of newly synthesized HTM in a PSC. In addition, the luminescence quenching value of novel HTM was very close to bench-mark Spiro-OMeTAD in the presence of perovskite absorber layer which proved the efficient transferring of holes in PSC. After fabrication of perovskite solar cell without any HTM and with it, the efficiency of PSC was dramatically increased from 1.57 % to 6.60 % , respectively which shown the good performance of HTMs based on imidazole rings.

In this study, Y-metal organic framework as a novel porous material was synthesized by affordable- ecofriendly and effective method of ultrasound assisted reverse micelle. Relevant analyses including X-ray diffraction (XRD), scanning electron microscopy (SEM), thermo-gravimetric analysis (TGA), differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR), and Brunauer-Emmett-Teller (BET) surface area analysis were applied for physicho-chemical characterization of the products. Results obtained from experimental design showed that the experimental parameters affected on adsorption of CH4 gas pollution included temperature, time duration and pressure. These parameters and their interactions were designed by fractional factorial design method. The control of procedure was studied by analysis of variance and response surface methodology (RSM). RSM investigated the possibility of the Y-metal organic framework in optimal conditions to achieve maximum adsorption of CH4 pollution.

Abstract One important topic to recovery the photocatalytic process is to prevent the recombination of electrons and holes generated by light excitation of the photocatalyst. Different strategies have been used such as a composite of compounds is an appropriative way to reduce the recombination. On the other hand, to optimize the use of visible light , components can composite with visible active components. In this article, to more using solar light and more activation of composite in visible light, sensitization with porphyrin and tin porphyrin complex was carried out. As a result, we reported on the synthesis of BiOBr/Ag@TCPP and BiOBr/Ag@SnTCPP nanocomposites. The nanocomposites were characterized by the XRD, FT-IR, FE-SEM equipped with EDS, Raman, and UV–vis DRS analytical techniques. Furthermore, the photocatalytic activity of nanocomposites sensitized with porphyrin for photodegradation of methyl orange (MO) as model organic pollutant were investigated. The maximum degradation efficiency of 95% is achieved under visible light irradiation in 240 min. The photocatalytic performance of BiOBr/Ag@TCPP and BiOBr/Ag@SnTCPP nanocomposites is much higher than that of BiOBr/Ag.

Ascorbic acid is known as an important vitamin antioxidant, which has many role in the health of body cells. In this research, for the first time has been used from the quartz crystal micro-balance (QCM) technique to determine the antioxidant capacity of ascorbic acid against TEMPO radical scavenging in different concentrations in binary mixture of water-ethanol (1:2 v/v) at room temperature. In this technique, the mass changes on the quartz crystal covered by gold layer and modified by the cysteine are measured using the changes of vibrational frequency. The antioxidant capacity was measured based on the radical adsorption on the modified layer of crystal. Changes in frequency were observed proportional to the mass of the absorbed TEMPO radical. The obtained results indicate that the scavenging property of ascorbic acid is increased by increasing the concentration of TEMPO free radical. Finally, the adsorption process of TEMPO radical was evaluated by using Langmuir and Freundlich models. It was found that the adsorption of TEMPO radical on the surface of crystal follows the Langmuir isotherm.

In this research, the tridentate Schiff base ligand N2O was prepared and then the 1D Cu(II) ‎coordination ‎polymer was synthesized. The ligand and polymer were characterized via analytical and ‎spectral methods. The ‎crystal structure of polymer was determined by single crystal X-ray diffraction ‎method. It was exhibited that ‎the Cu(II) ion was surrounded by tridentate Schiff base ligand and ‎acetate ion, produced distorted octahedral ‎geometry. Two nitrogen atoms( one aminic ‎nitrogen atom and one iminic nitrogen atom) and one phenolic ‎oxygen atom from tridentate Schiff ‎base ligand and two oxygen atoms of acetate ion coordinated to the Cu(II) ‎ion. One of the oxygen ‎atoms was simultaneously coordinated to two Cu(II) ions and caused the formation of ‎the linear ‎coordination polymer. The antibacterial activity of the ligand and coordination polymer was ‎‎investigated against the Klebsiella pneumoniae‎‏‎,‎‏ ‏‏‎ Salmonella enterica bacteria and the results showed ‎that the ‎ligand was exhibited higher activity than the polymer. ‎

In this study, nickel oxide nanoparticles was prepared by co-precipitation method and characterized using FT-IR, XRD, VSM and SEM techniques. By Fourier transform infrared FT-IR has proven bond forming of NiO in nickel oxide. . X-ray diffraction (XRD) showed that the single-phase sample had a cubic symmetry with a particle size of 57 nm. Nickel oxide nanoparticles can be prepared as an efficient adsorbent for the removal of food color in aqueous solution. The highest removal percentage of food color, was in pH=7 and it,s concentration was 15 ppm. The obtained experimental data in optimum condition was used to model the behavior of absorption in isotherms equations such as: Langmuir, Freundlich, Langmuir-Freundlich and Toth. An examination of the Langmuer isotherm (R2=0.980) showed that the absorption of food color on the adsorbent surface was monolithic and uniform. The kinetics of adsorption interactions were examined. The obtained results showed that the adsorption data has the most conformity with, pseudo-second-order model.

In this study, a new Schiff base compound was synthesized using the condensation reaction of 2-hydroxy-1-naphthaldehyde with 4, 5, 6, 7-tetrahydrobenzothiazole-2, 6-diamine. The product was characterised by using FT-IR and 1H-NMR techniques. The interaction of this compound with DNA extracted from calf thymus (ct-DNA) was studied by the fluorescence emission and circular dichroism (CD). In addition, the binding ability and the interaction type of the corresponding Schiff base with ct-DNA was determined by monitoring of DNA denaturation data and bonding and thermodynamic parameters of the interaction of compound with DNA. Finally, the anti-cancer properties of this compound were investigated on two categories of HepG2 and MCF-7 cancer cells. The results showed the groove binding of the compound to DNA and the IC50 values of the compound for the two cell lines HepG2 and MCF-7 were 34.52 21 2.21 and 7.75 70 3.70 μM, respectively.

Photo-Fenton oxidation is one of the most efficient advanced oxidation process that is used for the treatment of effluents containing recalcitrant compounds. In this research, the removal of an anionic surfactant, sodium dodecyl sulfate, by MnFe2O4/ZnO nanocatalyst using photo-Fenton advanced oxidation process has been investigated. In this study, the MnFe2O4/ZnO nanocomposite was firstly synthesized and characterized, and then applied in the photo-Fenton oxidation process under UV irradiation. The effect of different parameters, such as pH, catalyst dose and the amount of hydrogen peroxide, on the process were investigated. Under the optimum conditions, at pH = 7, with a surfactant concentration of 5 mg/L, at 30 min using 2.24 mL hydrogen peroxide, the surfactant removal efficiency was 100%. The results show that the proposed method using the synthesized nanocatalyst has a high efficiency in the removal of surfactants.