文献类型：期刊文献

英文题名：Enhanced adsorption and photo-degradation of bisphenol A by β-cyclodextrin modified pine sawdust in an aquatic environment

作者：Zhou, Yanbo[1];Zhang, Ruzhuang[1];Chen, Ke[1];Zhao, Xuanran[1];Gu, Xiaochen[1];Lu, Jun[1]

机构：[1]East China Univ Sci & Technol, Key Lab Coal Gasificat & Energy Chem Engn, Minist Educ, Shanghai 200237, Peoples R China

年份：2017

卷号：78

起止页码：510

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

收录：;EI(收录号：20172803901030);WOS:【SCI-EXPANDED(收录号:WOS:000407657700062)】；

基金：The authors would like to express their sincere gratitude to the National Natural Science Foundation of China (51208201), Shanghai Rising-Star Program (17QA1401000), and the Fundamental Research Funds for the Central Universities for their financial support.

语种：英文

外文关键词：beta-CD; Sawdust Photo-degradation; Adsorption; BPA

摘要：The occurrence of bisphenol A (BPA) raised significant concerns about potential adverse impacts on environmental health, and its removal has become a hot research topic. We conducted batch adsorption and photo-degradation experiments to determine the removal performance of BPA by beta-cyclodextrin (beta-CD) modified pine sawdust (CD-PS) in an aquatic environment for the first time. Pine sawdust (B-PS) was treated by NaOH firstly and then modified by beta-CD. The adsorption behaviour of BPA on the B-PS and CD PS were observed to follow Langmuir and pseudo-second-order kinetic models, and that CD-PS had a 1.2 times higher adsorption capacity than B-PS. At 25 degrees C and pH = 7.0, the maximum adsorption capacity of CD-PS reached 0.0319 mmol/g. Moreover, the effects of beta-CD, CD-PS and B-PS on the photo-degradation of BPA were compared under UV irradiation, indicating that CD-PS significantly enhanced the removal efficiency. Additionally, the "saturated" CD-PS could be regenerated several times using UV irradiation without loss during BPA adsorption process. Results of this work demonstrate that,beta-CD immobilized on the surface of CD-PS could be acted as an excellent catalyst for BPA removal, and a possible reactive mechanism was further proposed in this regards. These observations indicate that the CD-PS system can remediate BPA-polluted aquatic environment very well. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.