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Enhanced electrochemical sensing performance for trace Hg(II) by high activity of Co3+ on Co3O4-NP/N-RGO surface
Xie, Feng1,2,3; Song, Zong-Yin3,4; Yang, Meng1,2,4; Duan, Wan-Chun3; Quan, Ying-Nan3; Huang, Xing-Jiu1,2,3; Liu, Wen-Qing1,2; Xie, Pin -Hua1,2
2022-04-01
Source PublicationANALYTICA CHIMICA ACTA
ISSN0003-2670
Corresponding AuthorLiu, Wen-Qing(wqliu@aiofm.ac.cn) ; Xie, Pin -Hua(phxie@aiofm.ac.cn)
AbstractConstructing a highly sensitive and selective electrochemical interface is of great significance for the effective detection of Hg2+ in water and biological samples. Herein, Co3O4 nanopolyhedron (NP) anchored on nitrogen-doped reduced graphene oxide (N-RGO) is utilized as the electrode material for the detection of Hg2+ in the range of 0.1 mMe1.0 mM, with high sensitivity (1899.70 mA mM(-1) cm-2) and low detection limits (0.03 mM) in natural water. Moreover, the Co3O4-NP/N-RGO modified electrode possesses reasonable anti-interference ability for Hg2+ in the presence of inorganic ions and glucose, which is the basis of its good response to trace Hg2+ in serum. Besides, combined with X-ray photo-electron spectroscopy (XPS) and density functional theory (DFT) calculations, the electron transfer tendency is revealed. Additionally, combined with the electron state density of Co-p, it is speculated that Co3+ is an optimum active site for catalytic reaction. The above results elucidate an electrochemically sensitive interface is constructed to realize the efficient detection of Hg2+, which provides some theo-retical guidance for the development of electrochemical sensors. (C) 2022 Elsevier B.V. All rights reserved.
KeywordElectrochemical detection Hg2+ High sensitivity DFT calculations
DOI10.1016/j.aca.2022.339607
WOS KeywordHEAVY-METALS ; GRAPHENE ; MERCURY ; PLATFORM ; SAMPLES
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21735005] ; Natural Science Foundation of Anhui Province[2008085QB79] ; China National Postdoctoral Program for Innovative Talents[BX20180311] ; China Postdoctoral Science Foundation[2019M652220] ; Fuyang Municipal People's Government[SXHZ202003] ; Fuyang Normal University[SXHZ202003]
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; China National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; Fuyang Municipal People's Government ; Fuyang Normal University
WOS Research AreaChemistry
WOS SubjectChemistry, Analytical
WOS IDWOS:000759502000002
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/127797
Collection中国科学院合肥物质科学研究院
Corresponding AuthorLiu, Wen-Qing; Xie, Pin -Hua
Affiliation1.Chinese Acad Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, HFIPS, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Hefei 230031, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China
First Author AffilicationAnhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China
Corresponding Author AffilicationAnhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China
Recommended Citation
GB/T 7714
Xie, Feng,Song, Zong-Yin,Yang, Meng,et al. Enhanced electrochemical sensing performance for trace Hg(II) by high activity of Co3+ on Co3O4-NP/N-RGO surface[J]. ANALYTICA CHIMICA ACTA,2022,1200.
APA Xie, Feng.,Song, Zong-Yin.,Yang, Meng.,Duan, Wan-Chun.,Quan, Ying-Nan.,...&Xie, Pin -Hua.(2022).Enhanced electrochemical sensing performance for trace Hg(II) by high activity of Co3+ on Co3O4-NP/N-RGO surface.ANALYTICA CHIMICA ACTA,1200.
MLA Xie, Feng,et al."Enhanced electrochemical sensing performance for trace Hg(II) by high activity of Co3+ on Co3O4-NP/N-RGO surface".ANALYTICA CHIMICA ACTA 1200(2022).
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