Preparation and Benzidine Inclusion Adsorption of Cyclodextrin Copolymer

摘要：

Insoluble β-Cyclodextrin (β-CD) copolymer was prepared by reacting β-CD with hexamethylene diisocyanate (HMDI) and its inclusion adsorption behavior was investigated. The obtained CD copolymer (CDP) contained a range of 0.3957-0.4058 mmol/g CD detected by elemental analysis. The physical and chemical properties of CD copolymer were characterized by SEM, FT-IR, DSC, TGA, XRD and BET N2 adsorption. The inclusion adsorption of benzidine by CD copolymer was researched at relative low concentration, indicating its strong capability to remove such organics from water. The effects of agitation time and temperature on the adsorption of benzidine onto CD copolymer have been studied. The thermodynamic constants ΔHθ ,ΔSθ and ΔGθ of the inclusion adsorption demonstrate the adsorption of organics onto CD copolymer is exothermic. The Freundlich equation could be employed to describe the procedure of the adsorption of benzidine onto CD copolymer.

关键词： β-Cyclodextrin copolymer inclusion adsorption thermodynamic benzidine.

作者: ZhaoYang Sun GuiPing Cao Hui Lv

作者单位: UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, 130 # Meilong RD., Shanghai, China

会议类型: 国际会议

会议名称: The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)

会议地点: 大连

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）