جستجوی مقالات مرتبط با کلیدواژه « mo(ii) » در نشریات گروه « مواد و متالورژی »

A novel, simple, sensitive and effective method has been developed for removal of Mo(II) on the superparamagnetic adsorbent as Fe@Mg-Al LDH adsorbent. Spectrometry was used to track the effects of Fe@Mg-Al LDH dose, pH extraction, and contact duration on Mo(II) removal from sample water. This research also looked at adsorption isotherm models for the sorption of Mo(II). The magnetic Fe@Mg-Al LDH adsorbent Mo(II) adsorption capability was 29.74 mg/g respectively. The Freundlich isotherm model fits the removal of Mo(II) utilizing magnetic Fe@Mg-Al LDH adsorbent. This approach has an outstanding linear range of 0.5-26 mg/L for Mo2+ ions. The limits of detection (LODs) for Mo2+ ions adsorption by magnetic Fe@Mg-Al LDH adsorbent were reached by utilizing a signal-to-noise ratio of 3 (LOD= 2.35 μg/L). These findings show that magnetic Fe@Mg-Al LDH adsorbent is an effective adsorbent for extracting Mo(II) from different sample waters.

A organic-solution-processable functionalized-graphene (SPFGraphene) material has been studied on pre-concentration and determination of trace Mo(II)ions. In this process, the effects of pH solution, elution conditions on pre-concentration of trace Mo(II) were studied and the effect of interfering ions was also investigated. A selective method for the fast determination of trace amounts of Mo (II) ions in water samples has been developed. method has been developed for preconcentration of Mo on organic-solution-processable functionalized-graphene (SPFGraphene) adsorbent in the pH range 5.0–10.0, prior to its spectrophotometric determination, based on the oxidation of bromopyrogallol red at λ = 517 nm. This method makes it possible to quantitize Mo in the range of 6.9×10−9 to 2.7×10−5 M, with a detection limit (S/N = 3) of 1.78×10−9 M. This procedure has been successfully applied to determine the ultra-trace levels of Mo in the environmental samples, free from the interference of some diverse ions. The precision, expressed as relative standard deviation of three measurements is better than 3.0%.