Enhanced electrochemical sensing performance for trace Hg(II) by high activity of Co3+ on Co3O4-NP/N-RGO surface

doi:10.1016/j.aca.2022.339607

	Enhanced electrochemical sensing performance for trace Hg(II) by high activity of Co3+ on Co3O4-NP/N-RGO surface
	Xie, Feng 1,2,3; Song, Zong-Yin 3,4; Yang, Meng 1,2,4; Duan, Wan-Chun 3; Quan, Ying-Nan 3; Huang, Xing-Jiu 1,2,3; Liu, Wen-Qing 1,2; Xie, Pin -Hua 1,2
刊名	ANALYTICA CHIMICA ACTA
	2022-04-01
卷号	1200
关键词	Electrochemical detection Hg2+ High sensitivity DFT calculations
ISSN号	0003-2670
DOI	10.1016/j.aca.2022.339607
通讯作者	Liu, Wen-Qing(wqliu@aiofm.ac.cn) ; Xie, Pin -Hua(phxie@aiofm.ac.cn)
英文摘要	Constructing 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.
资助项目	National 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]
WOS关键词	HEAVY-METALS ; GRAPHENE ; MERCURY ; PLATFORM ; SAMPLES
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000759502000002
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127796]
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Wen-Qing; Xie, Pin -Hua
作者单位	1.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
推荐引用方式 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).