Highly sensitive and selective electrochemical detection of Pb(II) in serum via an alpha-Fe2O3/NiO heterostructure: Evidence from theoretical calculations and adsorption investigation

doi:10.1016/j.snb.2021.130295

	Highly sensitive and selective electrochemical detection of Pb(II) in serum via an alpha-Fe2O3/NiO heterostructure: Evidence from theoretical calculations and adsorption investigation
	Wei, Juan 2; Zhao, Jie 1; Li, Chun-Yang 2; Xie, Xiao-Yu 2; Wei, Yuan-Yuan 2; Shen, Wei 3; Wang, Jian-Ping 3; Yang, Meng 3
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2021-10-01
卷号	344
关键词	alpha-Fe2O3/NiO heterostructure Electroanalysis of Pb(II) Highly sensitive and selective Density functional theory (DFT) calculation Serum sample
DOI	10.1016/j.snb.2021.130295
通讯作者	Yang, Meng(myang@iim.ac.cn)
英文摘要	The construction of an effective electrochemical sensing interface to achieve highly sensitive and selective determination of heavy metal ions (HMIs) is urgently required, and elucidation of a sensitive mechanism has important guiding significance for developing novel sensing interfaces. In this study, alpha-Fe2O3/NiO heterostructure nanocomposites are synthesized and used to modify glassy carbon electrodes (GCEs) to construct an electrochemical sensing interface to detect HMIs with high sensitivity and selectivity for Pb(II) detection. Density functional theory (DFT) calculations describe the diffusion energy barrier of Pb atoms at the interface of the alpha-Fe2O3/NiO heterojunction, which was relatively small compared to other HMIs. This characteristic is conducive to the diffusion of Pb(II) adsorbed on the alpha-Fe2O3/NiO surface to the surface of the electrode to cause redox reactions, thereby obtaining an increased stripping signal. Considering both experiments and theoretical calculations, the essential reason for the highly sensitive and selective Pb(II) electroanalysis is demonstrated. Additionally, the proposed electrochemical sensor exhibits satisfactory anti-interference performance. Efficacious detection of heavy metals in water and serum shows that this analytical method has strong potential in the analysis of environmental and biological samples.
资助项目	National Natural Science Foundation of China[21607004] ; National Natural Science Foundation of China[21806168] ; Anhui Medical University[XJ201527] ; early contact scientific research training program of clinical medicine major of Anhui Medical University[2019-ZQKY-55] ; open subject of key laboratory of food safety analysis and detection in Anhui Province ; Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences[PECL2019KF020] ; Natural Science Foundation of Anhui Province[2008085QB79] ; China National Postdoctoral Program for Innovative Talents[BX20180311] ; China Postdoctoral Science Foundation[2019M652220] ; Fuyang Normal University[SXHZ202003] ; Fuyang Municipal People's Government[SXHZ202003]
WOS关键词	ANODIC-STRIPPING VOLTAMMETRY ; GRAPHENE OXIDE ; CARBON NANOTUBES ; GAS SENSOR ; LEAD IONS ; PERFORMANCE ; HYDROGEN ; NANOPARTICLES ; REMOVAL ; NANOSTRUCTURES
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000679290700004
资助机构	National Natural Science Foundation of China ; Anhui Medical University ; early contact scientific research training program of clinical medicine major of Anhui Medical University ; open subject of key laboratory of food safety analysis and detection in Anhui Province ; Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences ; Natural Science Foundation of Anhui Province ; China National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; Fuyang Normal University ; Fuyang Municipal People's Government
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123197]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Meng
作者单位	1.Anhui Med Univ, Affiliated Hosp 1, Dept Tradit Chinese Med, Hefei 230022, Peoples R China 2.Anhui Med Univ, Sch Publ Hlth, 81 Meishan Rd, Hefei 230032, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Environm Mat & Pollut Control Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wei, Juan,Zhao, Jie,Li, Chun-Yang,et al. Highly sensitive and selective electrochemical detection of Pb(II) in serum via an alpha-Fe2O3/NiO heterostructure: Evidence from theoretical calculations and adsorption investigation[J]. SENSORS AND ACTUATORS B-CHEMICAL,2021,344.
APA	Wei, Juan.,Zhao, Jie.,Li, Chun-Yang.,Xie, Xiao-Yu.,Wei, Yuan-Yuan.,...&Yang, Meng.(2021).Highly sensitive and selective electrochemical detection of Pb(II) in serum via an alpha-Fe2O3/NiO heterostructure: Evidence from theoretical calculations and adsorption investigation.SENSORS AND ACTUATORS B-CHEMICAL,344.
MLA	Wei, Juan,et al."Highly sensitive and selective electrochemical detection of Pb(II) in serum via an alpha-Fe2O3/NiO heterostructure: Evidence from theoretical calculations and adsorption investigation".SENSORS AND ACTUATORS B-CHEMICAL 344(2021).