Preparation of the Sodium Alginate-g-(Polyacrylic Acid-co-Allyltrimethylammonium Chloride) Polyampholytic Superabsorbent Polymer and Its Dye Adsorption Property
文献类型： 外文期刊
第一作者： Tang, Shuxian
作者： Tang, Shuxian;Zhao, Ying;Wang, Yuqiao;Zhu, Hexiang;Chen, Yu;Chen, Shusen;Jin, Shaohua;Wang, Haitao;Yang, Ziming;Li, Puwang;Li, Sidong
作者机构：
关键词： polyampholytic superabsorbent polymer; pH-dependent; adsorption; Methylene blue
期刊名称：MARINE DRUGS （ 影响因子：5.118； 五年影响因子：5.951 ）
ISSN： 1660-3397
年卷期： 2018 年 16 卷 12 期
页码：
收录情况： SCI
摘要： A polyampholytic superabsorbent polymer (PASAP), sodium alginate-g-(polyacrylic acid-co-allyltrimethylammonium chloride) (SA-g-(PAA-co-PTM)), was prepared by free-radical graft copolymerization and characterized. The polymer exhibited pH-dependent swelling behaviors with extremely high swelling ratios, and was saline tolerant. The dye adsorption properties of SA-g-(PAA-co-PTM) were investigated using methylene blue (MB) as a cationic dye model. It was found that its dye adsorption capacity was significantly affected by the TM content in PASAP and pH of dye solution. The dye adsorption kinetics and isotherm obey the pseudo-second-order kinetic model and the Langmuir isotherm model, respectively, and the adsorption process is chemisorption in nature. In addition, SA-g-(PAA-co-PTM) exhibited high MB adsorption capacities in a wide pH range and reusability in at least five adsorption-desorption cycles, indicating its great application potentials as the adsorbent for dye removals from effluents.
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