Fabricating Cationic Lignin Hydrogels for Dye Adsorption

作     者：Chao Wang Xuezhen Feng Wanbing Li Shibin Shang Haibo Zhang 

作者机构：Institute of Chemical Industry of Forest ProductsCAF、National Engineering Laboratory for Biomass Chemical Utilization、Key Laboratory of Chemical Engineering of Forest ProductsNational Forestry and Grassland Administration、Key Laboratory of Biomass Energy and MaterialJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing210042China 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2023年第11卷第4期

页      面：1793-1805页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by Fundamental Research Funds of CAF(CAFYBB2020MB002) 

主　　题：Adsorption lignin congo red hydrogel 

摘      要：Due to the low content of adsorption-active groups in lignin,its application in the field of adsorption is ***,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’-*** morphology,compression properties and swelling properties of CKLA hydrogels were *** prepared CKLA hydrogel was applied as an adsorbent for Congo *** effect of CKLA hydrogel dosages,initial concentration of Congo red,and pH on adsorption efficiency was *** maximum Congo red removal efficiency was obtained at the initial concentration of Congo red of 50 mg/L,pH 7,and 5 mg dosage of CKLA hydrogel with 20%cationic lignin *** five cycles of adsorption,the adsorption efficiency of the hydrogel for Congo red still reached more than 80%.The CKLA hydrogel showed pseudo-second-order adsorption kinetics for Congo red *** results demonstrate the potential of the CKLA hydrogel as an adsorbent for water treatment.