文献类型：期刊文献

英文题名：Citric acid-crosslinked β-cyclodextrin for simultaneous removal of bisphenol A, methylene blue and copper: The roles of cavity and surface functional groups

作者：Huang, Weiwei[1,2];Hu, Yonghua[1,2];Li, Yaoyue[1,2];Zhou, Yanbo[1,2];Niu, Dechao[3];Lei, Zhongfang[4];Zhang, Zhenya[4]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]Univ Tsukuba, Grad Sch Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan

年份：2018

卷号：82

起止页码：189

外文期刊名：JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS

收录：;EI(收录号：20174904506076);WOS:【SCI-EXPANDED(收录号:WOS:000423653500021)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51778230), Shanghai Rising-Star Program (17QA1401000) and the Fundamental Research Funds for the Central University.

语种：英文

外文关键词：beta-cyclodextrin; Versatile adsorbent; Bisphenol A; Methylene blue; Copper

摘要：The increasing worldwide pollution of nature waters with endocrine disrupting chemicals (EDCs), heavy metals and dyes has highlighted the need for versatile and effective removal approaches. In this study, a citric acid-crosslinked beta-cyclodextrin polymer (CA-beta-CD) was applied for simultaneous adsorption of bisphenol A (BPA), methylene blue (MB) and Cu2+, typical pollutants of EDCs, dyes and heavy metals, respectively. In a monocomponent system, the adsorption behaviors exhibited a monolayer maximum adsorption capacity (q(m)) of 0.3636 mmol/g for BPA, and a heterogeneous q(m) of 0.9229 and 0.9155 mmol/g for MB and Cu2+, respectively. The multicomponent experiment indicated that BPA and MB adsorptions onto CA-beta-CD were independent from each other, whereas MB and Cu2+ competed over the same sites. An adsorption mechanism was proposed: each component of CA-beta-CD played an essential role, the cyclodextrin cavities contributed to entrapment of non-polar BPA, and the surface carboxyl groups provided binding sites for polar MB and Cu2+. Adsorption performance of the polymer was unaffected by humic acid, a major component of natural organic matter. Overall, due to its green synthetic procedure, versatile and good adsorption performance, excellent recyclability and anti jamming capacity, CA-beta-CD has great potentials for practical applications in water purification. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.