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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精细化工全国重点实验室主任，教育部智能材料化工前沿科学中心执行主任，大连理工大学膜科学与技术研究开发中心主任
性别：女
毕业院校：中国科学院大连化物所
学位：博士
所在单位：化工学院
学科：化学工程. 膜科学与技术. 生物医学工程
联系方式：hgaohong@dlut.edu.cn
电子邮箱：hgaohong@dlut.edu.cn
Hydrophobic-modified montmorillonite coating onto crosslinked chitosan as the core-shell micro-sorbent for iodide adsorptive removal via Pickering emulsion polymerization
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论文类型：期刊论文
发表时间：2019-09-10
发表刊物：International journal of biological macromolecules
收录刊物：PubMed
卷号：141
页面范围：987-996
ISSN号：1879-0003
关键字：Adsorption,Chitosan,Hydrophobic modified montmorillonite,Pickering emulsion,Radioactive iodide ion
摘要：The radioactive iodine from nuclear wastes caused severe environmental contamination and public health concern. Chitosan and montmorillonite as green materials of the favorable adsorptivity were proposed for iodine treatment. Rather than intercalation, the crosslinked chitosan proposedly via Pickering emulsion polymerization was coated by hydrophobical-modified montmorillonite (HMMT) to form the micro-composite of chitosan/HMMT (CTS/HMMT) as the iodide adsorbent of eco-safety, adsorptivity combination and chitosan-swelling limitation. From pH 3 to 10, CTS/HMMTs adsorbed I127 anions no <90% during 40 min, with the maximum adsorption capacity of 0.3033 mmol/g, well-fitting with Langmuir isotherm model and the pseudo first-order kinetic model. CTS/HMMTs were also well-regenerated within the five adsorption/desorption cycles of the nearly same adsorption efficiency, performing the high stability. Nonetheless, the CTS/HMMT adsorbents were prospective for radioactive iodine removal.Copyright © 2019 Elsevier B.V. All rights reserved.