Functional PAN-based monoliths with hierarchical structure for heavy metal removal
Functional PAN-based monoliths with hierarchical structure for heavy metal removal
复制标题
具有分层结构的功能性 PAN 基整体材料，用于去除重金属
DOI：
10.1016/j.cej.2016.11.032
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发表时间：
2017-04-01
影响因子：
15.1
通讯作者：
Qiu, Jieshan
中科院分区：
文献类型：
--
作者：
Wang, Gang;Wang, Jianren;Qiu, Jieshan
Efficient removal of lead from aqueous media remains a serious task for public health and environment. Here polyacrylonitrile (PAN) monolith is fabricated by means of thermally induced phase separation (TIPS), a novel method that can be used for the preparation of hierarchically structured monolith without any templates assisted. Three hierarchically structured adorbents (D-PAN, H-PAN, A-PAN) based on PAN monolith were successfully prepared by reacting with diethylenetriamine (DETA), sodium hydroxide, and hydroxylamine hydrochloride, respectively. The Pb (II) adsorption ability of all modified samples was determined by a series of batch tests. Experimental data illustrated that all samples showed excellent Pb (II) adsorption ability and the maximum adsorption capacity of D-PAN, H-PAN, and A-PAN was 144 mg g(-1), 206 mg g(-1) and 242 mg g(-1), respectively. The feasible preparation of hierarchically monolithic adsorbents with high adsorption capacities opens a new expectation in the potential application for engineering. (C) 2016 Elsevier B.V. All rights reserved.
