Taste sensing with polyacrylic acid grafted cellulose membrane

Nickel adsorption by sodium polyacrylate-grafted activated carbon

“…The efficiency of adsorption depends on many factors, including the surface area, pore size distribution, polarity, and functional groups of the adsorbent [3][4][5]. Cheap adsorbents can be developed for treating wastewaters by various methods, which include hydrolysis [6,7], esterification [7], saponification [8], grafting by chemical methods [9][10][11][12][13] or irradiation by UV or ␥-rays [14][15][16][17] of abundant natural or waste materials. For example, activated carbon can be used to treat toxic substances, such as nickel [18,19], copper [20,21], zinc [20,22], toluene [22], cyanide [20,23], dyes [24,25] in commercial operations, because of its highly porous structure and large surface area available for adsorption or chemical reaction.…”

Adsorption of Antimony by Bagasse Fly Ash: Chemical Modification and Adsorption Mechanism

“…FTIR for Function Group Analysis of BFA. The grafting of acrylic acid on BFA resulted in the formation of bonds between BFA and the acrylic acid monomer and created a chain of poly acrylic acid on BFA (Majumdar et al, 2006). Grafting technique enhanced the improvement of thermal stability of the copolymer (Feng et al, 2009).…”

Removal of methylene blue dyes from wastewater using cellulose‐based superadsorbent hydrogels

“…In the case of C‐g‐AA hydrogels, a broad peak has appeared in the range of 1710–1569 cm −1 , which may be assigned to the CO stretching vibration of COOH groups of grafted AA. And the sharp characteristic peak at 1411 cm −1 is related to the symmetric stretching of COO − groups [37]. The peaks observed at 1710–1569 cm −1 and 1411 cm −1 prove the existence of carboxyl groups in hydrogels after graft polymerization.…”