Eco-friendly Synthesis of Hydrogel Nano-composites for Removal of Pollutants as a Model Rose Bengal Dye

Abstract

In this study, hydrogel Nano-composite was prepared by free radical polymerization in the presence of sodium alginate (SA) and TiO2 nanoparticles (TiO2 NPS) as a surface catalyst. Potassium per sulfate (KPS) was used as a reaction initiator. Crosslinking agent methylene bis-acrylamide, the structure and morphology its hydrogel Nano-composites were studied using Transmission electron microscopy (TEM), X-ray diffraction (XRD), Energy dispersive X-ray spectroscopy (EDX), and Field emission scanning electron microscopy (FE-SEM). Several factors that affected the adsorption process were studied, including effect of pH, effect of salt concentration and temperature. Also studied was the swelling behavior in two acidic mediums (pH=7, pH=1.2), the best surface swelling medium was at (pH=7). The adsorption isotherms were studied, and the result obeyed as favorable by Fruendlich isotherm depended on the value of (R2= 0.9404).

Spectrophotometric Method for the Determination of Catechol Amines Drugs in Pharmaceutical Preparations

“…Spectrophotometric methods carry out for the estima-tion of adrenaline utilizing different reagents like ferric chloride and chloranil, in the found of potassium hexa-cyanoferrate (III), or n the presence (1,10-phenanthroline). 1,4,[10][11][12][13][14][15] The values of the [(SD), and (RSD%)] for these imitate measurements of the drugs.…”

Eco-friendly Analytical Method for Estimation for Benzodiazepine Drug in Pure and Pharmaceuticals Formulations by Oxidative Coupling Reaction with Phenylephrine Hydrochloride

“…Despite the sensitive visible spectrophotometric ways being so little, the literature contained easy colorimetric ways for the estimation of benzodiazepine drugs. [12][13][14][15] In this study, the colorimetric method for spectrophotometric determination was used to identify chloroziban drug, based on a reaction known as oxidative coupling reaction, The method was sensitive, simple, fast and inexpensive based on the oxidative coupling reaction of chloroziban and phenylephrine hydrochloride conjugation reagent in the presence of sodium periodide oxidizing agent.…”