化工环保2013,Vol.33Issue(3):263-266,4.
交联壳聚糖/沸石复合吸附剂的制备及性能
Preparation and Performance of Cross-linked Chitosan/Zeolite Composite Adsorbent
摘要
Abstract
Chitosan was linked with glycidyl triethyl ammonium chloride,and then the cross-linked chitosan/zeolite composite adsorbent with good performance was prepared by loading the cross-linked chitosan onto zeolite.The factors affecting the application performance of the composite adsorbent were investigated.Its adsorption capability,settling property and reuse performance were discussed.The structures of the cross-linked chitosan and the composite adsorbent were characterized by FTIR and HRTEM.The experimental results show that:When the crosslinking degree of chitosan is 0.93 and the mass ratio of cross-linked chitosan to zeolite is 0.045,the humic acid removal rate by the composite adsorbent can reach 81.4%,the adsorption capacity is 4.07 mg/g; Compared with zeolite,the adsorption capability of the crosslinked chitosan/zeolite composite adsorbent is improved and the settling time is reduced obviously; After elution for 2 times,the humic acid removal rate can still reach 80.2%,and the adsorption capacity is 4.01 mg/g关键词
沸石/壳聚糖/交联/复合吸附剂/腐殖酸Key words
zeolite/ chitosan/ crosslinking/ composite adsorbent/ humic acid分类
化学化工引用本文复制引用
闫凤美,张燕,张军丽,张昕,潘庆才..交联壳聚糖/沸石复合吸附剂的制备及性能[J].化工环保,2013,33(3):263-266,4.基金项目
河南省基础与前沿技术研究项目(122300410209) (122300410209)
河南省驻马店市科技计划项目(12137,12316). (12137,12316)