Adsorption of Basic Dyes on beta-Cyclodextrin Functionalized Poly (Styrene-Alt-Maleic Anhydride)

作者：Zhang, XiaoMei^*; Li, HongZhan; Cao, ManLi; Shi, Liang; Chen, ChaoYue

来源：Separation Science and Technology (Philadelphia), 2015, 50(7): 947-957.

DOI：10.1080/01496395.2014.978461

• equilibrium
• basic dye
• kinetics
• adsorption
• [#x003B2]-cyclodextrin functionalized poly (styrene-alt-maleic anhydride)

A new [#x003B2]-cyclodextrin functionalized poly (styrene-alt-maleic anhydride) was synthesized for removal of basic fuchsin (BF) and methylene blue (MB) from water via grafting reaction of [#x003B2]-cyclodextrin onto poly (styrene-alt-maleic anhydride) and then acylation with chloroacetyl chloride. Its structure was characterized. At a dosage of 0.25 g[#x000B7]L-[#x02212]1, pH 6, and 25[#x000B0]C, adsorption equilibrium was reached in 600 min and maximum adsorption quantities to BF and MB were 295 mg[#x000B7]g([#x02212]1) and 528 mg[#x000B7]g([#x02212]1), respectively. The equilibrium data fitted the Langmuir isotherm and the adsorption kinetics data followed the pseudo-second-order model. Adsorption processes were endothermic, entropy gained, and spontaneous in nature within 288-308 K.

• 出版日期2015-5-3
• 单位安徽理工大学