Removal of Congo Red by Acrylic Acid-co-[2-[2- (Benzimidazole) Azo]-3-Methyl-4-Nitro Phenol] Composite from Aqueous Solution by Adsorption process

Abstract

This study is concerned with the adsorption of Congo red from solution on acrylic acid-co-[2-[2- (benzimidazole) azo]-3-methyl-4-nitro phenol] composite (AA-co-L2H ). The purpose of this study into the search for an active surface to be used to remove dyes from wastewater. Fourier transform infrared spectroscopy (FTIR) and SEM-EDX characterized the morphology and chemical structure of prepared samples. Ultraviolet-visible (UV-vis.) spectrophotometric technique has been used to produce quantitative adsorption at different conditions of time, temperature and concentration of dyes. The calculated data were in accordance with Langmuir equation and the adsorption isotherms are of L-curve. The results obtained show greater removal uptake of dye on composite. The calculated data were in accordance with Langmuir equation and the adsorption isotherms are of L-curve. The results obtained show greater removal uptake of dye on composite. The adsorption was a function of temperature (10, 20 and 30oC). The extent of adsorption of Congo red on the composite was found to increase with decreasing temperature (endothermic process). The basic thermodynamic functions have also been calculated.

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

“…The standard way to determine CZP in British pharmacopeia was useful in pure and pharmaceuticals for study drug and compared with proposed ways to evaluate the data for determine CZP drug. 27,28 The results appear in Table 3 no significant differences were found between the two ways. The standard method for determination of CZP was used on pharmaceuticals and pure preparation for studied drugs for evaluating the results for determining CZP drug.…”