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Novel sulfhydryl functionalized covalent organic frameworks for ultra-trace Hg2+ removal from aqueous solution

文献类型：期刊论文

作者Pan, Fei1,2,3; Tong, Chunyi1; Wang, Zhaoyang1; Xu, Fenghua4; Wang, Xiaofei5; Weng, Baicheng4; Pan, Dawei2; Zhu, Rilong1
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2021-12-10
卷号93页码:89-95
关键词Sulfhydryl-functionalized Covalent organic framework Ultra-trace adsorption Mercury adsorption
ISSN号1005-0302
DOI10.1016/j.jmst.2021.04.013
通讯作者Weng, Baicheng(baichengweng@hotmail.com) ; Pan, Dawei(dwpan@yic.ac.cn) ; Zhu, Rilong(zrlden@hnu.edu.cn)
英文摘要Two kinds of novel sulfhydryl functionalized covalent organic frameworks were fabricated as adsorbents for the removal of ultra-trace concentrations of Hg(2+)from water. The two kinds of sulfhydryl functionalized covalent organic frameworks were obtained via a thiol-ene click reaction between the thiol groups of trithiocyanuric acid (TTC) or bismuththiol (BMT) and vinyl groups on the surface of covalent organic frameworks. The material structure was characterized by XRD, SEM, EDS, FT-IR, BET, and TG analysis. Due to their rich sulfur content, both adsorbents (COF-SH-1 and COF-SH-2) exhibited a high level of selective Hg2+ removal from aqueous solution with maximum adsorption capacities of 763.4 mg g(-1) and 526.3 mg g(1,) respectively. Furthermore, in the presence of ultra-low concentrations of Hg2+ both materials exhibited excellent performance, achieving rapid Hg2+ removal at concentrations from 10 mu g L-1 to less than 0.02 ng L-1. Analysis of the adsorption mechanism indicates that the sulfur containing chelating groups exhibit a strong binding capacity for Hg2 +. Results show that the structure determines the performance, with the amount of adsorption sites being related to the adsorption capacity. Therefore, as sulfhydryl functionalized covalent organic frameworks contain an abundance of adsorption sites, these materials can effectively achieve the removal of ultra-low trace Hg2+ concentrations and have promising future application potential for the environmental detection of heavy metals. (C) 2021 Published by Elsevier Ltd on behalf of Chinese Society for Metals.
WOS关键词FACILE METHOD ; EFFICIENT ; MERCURY ; ADSORPTION ; IONS ; MOIETIES ; HG(II) ; RESIN
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000718116800011
资助机构Fundamental Re-search Funds for the Central Universities ; Envi-ronmental Protection Science and Technology Project of Hunan Province ; Key R & D Program of Hunan Province
源URL[http://ir.yic.ac.cn/handle/133337/38008]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
通讯作者Weng, Baicheng; Pan, Dawei; Zhu, Rilong
作者单位1.Hunan Univ, Minist Educ, Adv Catalyt Engn Res Ctr, Coll Chem & Chem Engn, Changsha 410082, Peoples R China
2.Chinese Acad Sci, Res Ctr Coastal Environm Engn Technol Shandong Pr, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res,Shandong Key Lab Coa, Yantai 264003, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, PR, Peoples R China
5.Hubei Polytech Univ, Sch Environm Sci & Engn, Huangshi 435003, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Fei,Tong, Chunyi,Wang, Zhaoyang,et al. Novel sulfhydryl functionalized covalent organic frameworks for ultra-trace Hg2+ removal from aqueous solution[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,93:89-95.
APA Pan, Fei.,Tong, Chunyi.,Wang, Zhaoyang.,Xu, Fenghua.,Wang, Xiaofei.,...&Zhu, Rilong.(2021).Novel sulfhydryl functionalized covalent organic frameworks for ultra-trace Hg2+ removal from aqueous solution.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,93,89-95.
MLA Pan, Fei,et al."Novel sulfhydryl functionalized covalent organic frameworks for ultra-trace Hg2+ removal from aqueous solution".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 93(2021):89-95.

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来源：烟台海岸带研究所

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