期刊
APPLIED SURFACE SCIENCE
卷 263, 期 -, 页码 696-703出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2012.09.143
关键词
Chitosan; Ion-imprinted technology; Silver; Triethanolamine; Adsorption
类别
资金
- Shaanxi Provincial Education Department in china [2010JK656]
The chitosan/triethanolamine (CTS/TEA) composites including Ag-imprinted CTS/TEA hydrogel bead (Ag-ICTHB) and Ag-imprinted CTS/TEA gel bead (Ag-ICTGB) were prepared by using ion-imprinted technology, in which TEA solution was used as coagulation bath to obtain the two sorbents. The optimization conditions for preparing the sorbents were listed: molar ratio (CTS:Ag(I)) = 1:0.10, c(CTS) = 1.0 for Ag-ICTHB and 2.0% for Ag-ICTGB, c(TEA) = 14%, and c(Na2S2O3)= 8.0gL(-1) as the elueant. The spectrum of FT-IR implies that bonding are formed between TEA and the primary hydroxyl of CTS, and -NH and -OH of CTS have some interactions with Ag(I). The DSC curve shows that two form of acting force for the adsorption of Ag(I) were appeared in the adsorption between the sorbents and Ag(I). The maximum adsorption capacities of Ag-ICTHB and Ag-ICTGB for Ag+ are 510 and 350mgg(-1), respectively. Moreover, the two beads exhibit good selectivity and durability for Ag+. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据