Knowledge Management System of Hefei Institute of Physical Science,CAS
A direct Z-scheme ZnS/Co9S8 heterojunction-based photoelectrochemical sensor for the highly sensitive and selective detection of chlorpyrifos | |
Chen, Shi-Hua1,2,3; Xiao, Xiang-Yu1,2,3; Li, Pei-Hua1,2,3; Li, Yi-Xiang1,2,3; Yang, Meng1,2; Guo, Zheng4; Huang, Xing-Jiu1,2,3 | |
2020-03-01 | |
发表期刊 | ENVIRONMENTAL SCIENCE-NANO |
ISSN | 2051-8153 |
通讯作者 | Yang, Meng(myang@iim.ac.cn) ; Guo, Zheng(zhguo@ahu.edu.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn) |
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. |
DOI | 10.1039/c9en01265f |
关键词[WOS] | VISIBLE LIGHT-DRIVEN ; ORGANOPHOSPHORUS PESTICIDES ; LIQUID-CHROMATOGRAPHY ; CHARGE-SEPARATION ; RATIONAL DESIGN ; RAPID DETECTION ; QUANTUM DOTS ; NANOPARTICLES ; PERFORMANCE ; BIOSENSOR |
收录类别 | SCI |
语种 | 英语 |
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 |
项目资助者 | 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 |
WOS研究方向 | Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics |
WOS类目 | Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology |
WOS记录号 | WOS:000522036000020 |
出版者 | ROYAL SOC CHEMISTRY |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/103626 |
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.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China 4.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, 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). |
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