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A direct Z-scheme ZnS/Co9S8 heterojunction-based photoelectrochemical sensor for the highly sensitive and selective detection of chlorpyrifos

文献类型：期刊论文

作者Chen, Shi-Hua1,3,4; Xiao, Xiang-Yu1,3,4; Li, Pei-Hua1,3,4; Li, Yi-Xiang1,3,4; Yang, Meng1,4; Guo, Zheng2; Huang, Xing-Jiu1,3,4
刊名ENVIRONMENTAL SCIENCE-NANO
出版日期2020-03-01
卷号7
ISSN号2051-8153
DOI10.1039/c9en01265f
通讯作者Yang, Meng(myang@iim.ac.cn) ; Guo, Zheng(zhguo@ahu.edu.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn)
英文摘要The detection of chlorpyrifos is of great importance due to its massive usage and serious toxic effects on human health and the ecosystem. Although fruitful achievements have been made in the photo-electrochemical (PEC) sensing of chlorpyrifos, the construction of a label-free PEC interface with high sensitivity and selectivity still faces serious challenges. In this work, we design a direct Z-scheme ZnS/Co9S8 heterojunction with hollow cubic structures, and the PEC sensor based on such materials achieves the highly sensitive and selective detection of chlorpyrifos through the inhibition to the photoresponse of ZnS/Co9S8 by chlorpyrifos. For sensitivity, the hollow cubic structures of the heterojunction increase the light absorption, and the formation of a direct Z-scheme of the photocatalysts greatly improves the spatial separation of photogenerated charge carriers, thus achieving better PEC activity and higher photocurrent response of the heterojunction than those of individual materials. It shows a wide linear range from 0.05 ppb to 40 ppb with a detection limit as low as 0.0166 ppb (defined as S/N = 3). In particular, the specific interaction between ZnS/Co9S8 and N and S atoms of chlorpyrifos creates the high selectivity for chlorpyrifos. In addition, the PEC sensor is still stable after storage for two weeks.
WOS关键词VISIBLE LIGHT-DRIVEN ; ORGANOPHOSPHORUS PESTICIDES ; LIQUID-CHROMATOGRAPHY ; CHARGE-SEPARATION ; RATIONAL DESIGN ; RAPID DETECTION ; QUANTUM DOTS ; NANOPARTICLES ; PERFORMANCE ; BIOSENSOR
资助项目National Natural Science Foundation of China[21735005] ; National Natural Science Foundation of China[21802145] ; National Natural Science Foundation of China[61774159] ; China Postdoctoral Innovation Talents Supporting Project[BX20180311] ; China Postdoctoral Science Foundation[2019 M652220] ; Science and Technology Major Project of Anhui Province[17030801033] ; Key Program of 13th five-year plan, CASHIPS ; Science and Technology Research Project of Anhui Province[1704c0402195] ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China
WOS研究方向Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000522036000020
资助机构National Natural Science Foundation of China ; China Postdoctoral Innovation Talents Supporting Project ; China Postdoctoral Science Foundation ; Science and Technology Major Project of Anhui Province ; Key Program of 13th five-year plan, CASHIPS ; Science and Technology Research Project of Anhui Province ; CAS Interdisciplinary Innovation Team of the Chinese Academy of Sciences, China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/103625]  
专题中国科学院合肥物质科学研究院
通讯作者Yang, Meng; Guo, Zheng; Huang, Xing-Jiu
作者单位1.Chinese Acad Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
2.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China
3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
4.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Shi-Hua,Xiao, Xiang-Yu,Li, Pei-Hua,et al. A direct Z-scheme ZnS/Co9S8 heterojunction-based photoelectrochemical sensor for the highly sensitive and selective detection of chlorpyrifos[J]. ENVIRONMENTAL SCIENCE-NANO,2020,7.
APA Chen, Shi-Hua.,Xiao, Xiang-Yu.,Li, Pei-Hua.,Li, Yi-Xiang.,Yang, Meng.,...&Huang, Xing-Jiu.(2020).A direct Z-scheme ZnS/Co9S8 heterojunction-based photoelectrochemical sensor for the highly sensitive and selective detection of chlorpyrifos.ENVIRONMENTAL SCIENCE-NANO,7.
MLA Chen, Shi-Hua,et al."A direct Z-scheme ZnS/Co9S8 heterojunction-based photoelectrochemical sensor for the highly sensitive and selective detection of chlorpyrifos".ENVIRONMENTAL SCIENCE-NANO 7(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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