@article { author = {Muhammadi, Hamidreza and Ghorbanloo, Massomeh and Masami, Mori and Yahiro, Hidenori}, title = {Adsorption of cationic dye from aqueous solutions by green pH responsive hydrogels based on poly(2-acrylamido-2-methyl-1-propanesulfonic acid)}, journal = {Nanochemistry Research}, volume = {7}, number = {2}, pages = {107-121}, year = {2022}, publisher = {Iranian Chemical Society}, issn = {2538-4279}, eissn = {2423-818X}, doi = {10.22036/ncr.2022.02.006}, abstract = {Poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-1-vinylimidazole), hydrogels were synthesized via free radical polymerization reaction at different conditions and modified with di-alkyl halide. P(AMPS-Na+-co-VIm)-Ag and p(AMPS-H+-co-VIm)-Ag were prepared by reducing Ag(CH3COO) salts loaded into p(AMPS-Na+-co-VIm) and p(AMPS-H+-co-VIm) hydrogels and then reduced by NaBH4. Metal nanoparticles embedded p(AMPS-Na+-co-VIm)-Ag and p(AMPS-H+-co-VIm)-Ag were visualized by high resolution X-ray photoelectron spectroscopy (HRXPS) and transmission electron microscopy (TEM). The prepared porous hydrogels and related composites were utilized in the adsorption of Rhodamine B from aqueous solutions. Among non-quaternized hydrogels, p(AMPS-Na+-co-VIm) and its composite outperformed p(AMPS-H+-co-VIm) and p(AMPS-H+-co-VIm)-Ag. since high porosity increases absorption capacity, which depends on the size and shape of the pores. In addition, the effect of 1,4-dibromobutane quaternization on the catalytic performance of nano-composites was investigated. Finally, the catalyst was easily recovered from the reaction medium and re-used for a further four runs without significant loss of activity. The durability of the catalyst structure without leaching was confirmed by FT-IR spectra and atomic absorption spectroscopy, respectively.}, keywords = {pH responsive,1-Vinylimidazole, 2-Acrylamido-2-methyl-1-propane sulfonic acid,Rhodamine B adsorption,Quaternization}, url = {http://www.nanochemres.org/article_159680.html}, eprint = {http://www.nanochemres.org/article_159680_4375a13bfdbd60d1676a59de305b59fd.pdf} }