Boosting sensitive and selective detection toward Pb(II) via activation effect of Co and orbital coupling between Pb and O over Co@Co3O4 nanocatalyst

doi:10.1016/j.jhazmat.2021.126157

	Boosting sensitive and selective detection toward Pb(II) via activation effect of Co and orbital coupling between Pb and O over Co@Co3O4 nanocatalyst
	Chen, Shi-Hua 3,4,5; Song, Zong-Yin 3,4,5; Li, Pei-Hua 3,4,5; Xiao, Xiang-Yu 3,4,5; Huang, Hong-Qi 1; Yang, Meng 3,4; Lin, Chu-Hong 3,4; Li, Li-Na 2; Huang, Xing-Jiu 3,4,5
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2021-08-15
卷号	416
关键词	SWASV Sensing interface Partial oxidation metal Pb(II) Orbital coupling
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2021.126157
通讯作者	Li, Li-Na(lilina@sinap.ac.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn)
英文摘要	Fruitful achievements on electrochemical detection toward Pb(II) have been achieved, and their good performance is generally attributed to the adsorption property of nanomaterials. However, the design of sensing interfaces from the electronic structure and electron transfer process is limited. Here, Co@Co3O4 acquired an ultrahigh detection sensitivity of 103.11 mu A mu M-1 toward Pb(II), outperforming the results previously reported. The interfacial oxygen atoms build an electron bridge for Co activating Co3O4. Particularly, new energy levels of oxygen atoms were generated and matched with that of Pb(II). The strong orbital coupling effect between O and Pb makes the Co@Co3O4 sensitive and selective toward Pb(II). Compared with Co metal and Co3O4, Pb(II) got more electrons from Co@Co3O4, and longer Pb-O bonds were formed, allowing more Pb(II) to be catalyzed and reduced. Also, the superior stability and reproducibility of electrochemical detection make electrodes practicably. This work reveals that metals can stimulate intrinsically catalytic activity of their metal oxides, with the generation of orbit energy levels that match to a specific analyte. It provides a promising strategy for constructing sensitive and selective sensing interfaces toward ultra-low concentration analyte in body fluid and other complex samples.
资助项目	National Natural Science Foundation of China[21735005] ; National Natural Science Foundation of China[U1932119] ; Natural Science Foundation of Anhui Province[2008085QB79] ; China National Postdoctoral Program for Innovative Talents[BX20180311] ; China Postdoctoral Science Foundation[2019M652220] ; National Key Basic Research Program of China[2017YFA0403402] ; Fuyang Municipal People's Government[SXHZ202003] ; Fuyang Normal University[SXHZ202003] ; shanghai large Scientific facilities center
WOS关键词	ELECTROCHEMICAL DETECTION ; OXIDE ; ADSORPTION ; SURFACE ; COMPOSITES ; REDUCTION ; EFFICIENT ; XPS
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000664778400005
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 ; National Key Basic Research Program of China ; Fuyang Municipal People's Government ; Fuyang Normal University ; shanghai large Scientific facilities center
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123421]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Li-Na; Huang, Xing-Jiu
作者单位	1.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 3.Chinese Acad Sci, Key Lab Environm Opt & Technol, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Environm Mat & Pollut Control Lab, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 5.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shi-Hua,Song, Zong-Yin,Li, Pei-Hua,et al. Boosting sensitive and selective detection toward Pb(II) via activation effect of Co and orbital coupling between Pb and O over Co@Co3O4 nanocatalyst[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,416.
APA	Chen, Shi-Hua.,Song, Zong-Yin.,Li, Pei-Hua.,Xiao, Xiang-Yu.,Huang, Hong-Qi.,...&Huang, Xing-Jiu.(2021).Boosting sensitive and selective detection toward Pb(II) via activation effect of Co and orbital coupling between Pb and O over Co@Co3O4 nanocatalyst.JOURNAL OF HAZARDOUS MATERIALS,416.
MLA	Chen, Shi-Hua,et al."Boosting sensitive and selective detection toward Pb(II) via activation effect of Co and orbital coupling between Pb and O over Co@Co3O4 nanocatalyst".JOURNAL OF HAZARDOUS MATERIALS 416(2021).