Adsorption of methyl violet in aqueous solutions by poly(N-vinylpyrrolidone-co-methacrylic acid) hydrogels

Synthesis, Characterization and Swelling study of Poly (Methacrylic acid-co-Maleic acid) Hydrogels

“…For instance, poly(methacrylicacid)/tannic acid 7 and N-succinyl chitosan-poly(methacrylic acid) 10 have been tested for drug release; poly(methacrylic acid)-g-cellulose/bentonite 11 and poly(N-vinylpyrrolidone-methacrylic acid) 12 hydrogels are used as cationic dye uptake. Whereas hydrogels of (chitosan, itaconic and methacrylic acid) 13 for heavy metal adsorption.…”

The enhanced removal of cationic dyes in binary system using novel copolymers with two kinds of acidic groups

“…In our previous work we investigated sorption of Basic Yellow 28 on PMAA hydrogels and results have shown that at room temperature the percent of dye removal was only 76% [21]. PMAA modified biomass was used for removal of methylene blue, rhodamine B and basic magenta [22], poly(N-vinylpyrrolidone-co-methacrylic acid) hydrogels for removal of methyl violet [23] and (poly(methacrylic acid)-graftcellulose/bentonite) for removal of methylene blue [24].…”

New copolymer of acrylamide with allyl methacrylate and its capacity for the removal of azo dyes

“…Adsorption is the effective and simple method to remove pollutants from wastewater. Several polymers and copolymers such as poly(N-vinylpyrrolidone-co-methacrylic acid), polystyrene-graft-poly(N,N-dimethylamino-2-ethyl methacrylate), aniline-formaldehyde polymer and so on as adsorbents were studied for their ability to remove metals or dyes [1][2][3] . In recent years, many researchers have worked for development of new adsorbents having superior properties such as high adsorption capacity, fast adsorption rate, and mechanical strength.…”