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Preparation and Flocculation Property of Cationic Chitosan‐DADMAC‐β‐Cyclodextrin Copolymer
Author(s) -
Zhang Jia,
Guan Guohao,
Lou Tao,
Wang Xuejun
Publication year - 2021
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.202100047
Subject(s) - flocculation , cationic polymerization , chitosan , wastewater , copolymer , ammonium chloride , chemistry , ammonium , cyclodextrin , biodegradation , nuclear chemistry , chromatography , organic chemistry , polymer , environmental engineering , environmental science
Dye wastewater, especially anionic dye wastewater, poses a serious risk to the environment and human health. To solve this problem, it is necessary to develop new flocculants with high efficiency and biodegradability. Herein, a copolymer of chitosan‐diallyl dimethyl ammonium chloride‐β‐cyclodextrin (CDC) with multiple functional groups is synthesized by microwave‐assisted copolymerization and used as flocculation to remove anionic dyes from wastewater. The experimental data show that the best removal ratios of the prepared CDC can reach 99.8% and 98.9% for acid black 172 and reactive orange C‐3R, respectively. In addition, the CDC can maintain good removal ability at different pH, temperature, and dye concentration. The excellent flocculation ability and wide application range endow the CDC flocculant with the potential application of anionic dye wastewater treatment.