期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 157, 期 -, 页码 687-694出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2019.11.228
关键词
Alginate aerogel; Adsorption; Lead ions
资金
- National Key Research and Development Program [2018YFD0800300]
- Natural Science Foundation of China [U1607111]
- Hundred Talent program of CAS [2010-735]
- project for Science and Technology Service of Chinese Academy of Sciences [KFJ-EW-STS-016]
- Zhejiang Province Financial Support [LGF19D060001, R5110230]
- Anhui Department of Education [gxyqZD2019045]
- aided program for Science and Technology Innovative Research Team of Ningbo Municipality [2014B82010]
A low-cost, environment-friendly sodium alginate-meso-2,3-dimercaptosuccinic add hybrid aerogel (SA-DMSA) was synthesized by simple chemical grafting and vacuum freeze-drying method and used to remove heavy metal ions in wastewater. The as-prepared SA-DMSA showed high affinity for heavy metal ions, such as Pb2+, Cd2+, Cu2+, Cr3+, and Co2+, and can remove >90% of the metal ions from the corresponding solution. SA-DMSA also exhibited high selectivity to Pb2+ and Cd2+, and the maximum adsorption capacities for Pb2+ and Cd2+ reached 116.4 and 91.2 mg/g, respectively. The SA-DMSA adsorbent can be regenerated by a simple one-step acid washing, and the adsorption performance remained stable after repeated use. Given its low-cost and easy-to-obtain raw materials, simple preparation process, and simple regeneration process of the adsorbent, SA-DMSA has broad application prospects in the treatment of low-concentration heavy metal ions, especially for wastewater containing Pb2+ and Cd2+. (C) 2019 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