Chao Wang, Xuezhen Feng, Wanbing Li, Shibin Shang*, Haibo Zhang*
Journal of Renewable Materials, Vol.11, No.4, pp. 1793-1805, 2023, DOI:10.32604/jrm.2023.024521
Abstract Due to the low content of adsorption-active groups in lignin, its application in the field of adsorption is limited.
Herein, we first prepared cationic kraft lignin acrylate, from which a cationic lignin (CKLA) hydrogel was further
prepared by cationic kraft lignin acrylate, acrylamide, and N, N’-methylenebisacrylamide. The morphology, compression properties and swelling properties of CKLA hydrogels were investigated. The prepared CKLA hydrogel
was applied as an adsorbent for Congo red. The effect of CKLA hydrogel dosages, initial concentration of Congo
red, and pH on adsorption efficiency was investigated. The maximum Congo red removal efficiency was obtained
at the initial concentration… More >
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