عالیه معینی پور

In the present study, HKUST-1 magnetic nanocomposite was prepared using the hydrothermal method and pre-synthesis modification. The aforementioned magnetic nanocomposite was characterized by the FT-IR, SEM, XRD and VSM techniques. In addition, the ability of this metal-organic framework to remove of the non-steroidal anti-inflammatory drug, Meloxicam, from aqueous solutions was studied. The widespread application of Meloxicam and the inefficient treatment of wastewater have resulted in the detect of the drug in water resources which can affect human health and/or ecosystems negatively. Therefore, the removal process of meloxicam was investigated by Fe3O4@HKUST-1 as the sorbent. Thus, the effect of variables factors on the removal process such as pH (7), absorbent weight (0.7 mg) and absorbent and absorbed proximity time (3 min) were optimized by the Central Composite Design at Design Expert software (10.0.7 version), the optimal conditions with desired function were obtained by the response surface methodology. Investigating the absorption isotherm confirms the adsorption behavior based on Freundlich and Langmuir isotherm. The most important advantages of the proposed nanocomposite as the absorbent include fast absorption process, low costs, high efficiency due to the large surface area and the porous structure of the Metal-organic framework. The resulted data showed the high removal efficiency (93.14%) and adsorption capacity (125.11mg g -1 ) of the proposed sorbent.

Water quality protecting in Swimming pools is important for the health of swimmers. Chlorine and its derivatives, which are added to the water as a disinfectant, interact with uric acid from the sweat and urine in water. This procedure produces toxic compounds in the water that endanger the health of the swimmer, even in small amounts. Based on this, introducing a method for removing and separation of this compound from water and treatment of pool water is more important. In this work, adsorption method using metal-organic framework MIL-100 (Fe) as sorbent was applied as for the removal of uric acid from water solutions. This adsorbent can remove uric acid (mg L-1) under ultrasonic waves, the amount of 3 mg of MIL-100(Fe) in initial pH=10 of analyte solution, recovery of removal is 60% of uric acid from water in 30 min. This method is a good and efficient strategy for removing of uric acid due to using a porous metal organic framework material as sorbent.

The increasing attention of researchers to reduce the thickness of two-dimensional nanostructures, is due to their unique physical, chemical, mechanical, and optical properties, which is based on their two-dimensional morphology and ultrathin thickness. In this research, the aim is introduce and express the applications of ultrathin two-dimensional nanomaterial. Ultrathin two-dimensional nanomaterial are more important than other nanomaterial due to a number of their unique properties. In fact, these characteristics have attracted interest in using them in the fields of the electronics/optoelectronics, catalysis, energy storage and conversion, water remediation, sensors and biomedicine. Recently, using them are increasing in extraction and removal of materials from aqueous media and complex matrices.