Uniform manganese-loaded titanium dioxide nanotube arrays for accurate detection of trace Cd2+ in water, soil and tea: Enhanced stability and sensitivity

doi:10.1016/j.cej.2020.125972

	Uniform manganese-loaded titanium dioxide nanotube arrays for accurate detection of trace Cd2+ in water, soil and tea: Enhanced stability and sensitivity
	Jiang, Min 1,2,3; Ma, Ming-Jun 3,4; Lin, Chu-Hong 1,2,3; Yang, Meng 1,2,3,4; Fang, Li 3,4; Liu, Jin-Huai 1,2,3; Zhao, Nan-Jing 3,4; Huang, Xing-Jiu 1,2,3
刊名	CHEMICAL ENGINEERING JOURNAL
	2020-11-15
卷号	400
关键词	Self-organizing and ordered Mn-TiO2 NTAs ECP-LIBS MATLAB Simulation High stability and sensitivity
ISSN号	1385-8947
DOI	10.1016/j.cej.2020.125972
通讯作者	Yang, Meng(myang@iim.ac.cn) ; Zhao, Nan-Jing(njzhao@aiofm.ac.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn)
英文摘要	The poor stability of the signal obtained on nonuniform substrate, which results from the obvious difference in the size of ablation spots, the uneven distribution of enriched analytes, and the severe matrix effect, seriously affecting the practical application of electrochemical preconcentration supported laser-induced breakdown spectroscopy (ECP-LIBS). Here, self-organizing and ordered manganese loaded titanium dioxide nanotube arrays (Mn-TiO2 NTAs) on a titanium foil was employed as the working electrode to overcome the problem. The MnTiO2 NTAs were of equal height, hollow-structured and evenly arranged on the electrode, leading to uniform and shallow ablation spots after Gaussian laser irradiation (proven by MATLAB simulation), which reduced the matrix effect. As a result, a high sensitivity of 13347.7 counts mu M-1 and low LOD of 0.01 mu M for Cd2+ were achieved. Most importantly, the self-organizing and ordered Mn-TiO2 NTAs electrode exhibited outstanding stability and reproducibility (relative standard deviation, RSD, was less than 5%), while the Mn-TiO2 electrode modified through the drip coating method showed poor stability (RSD was greater than 20%). The proposed method perfectly achieved the anti-interference and accurate detection of Cd2+ in water, soil and tea.
资助项目	National Natural Science Foundation of China[21735005] ; National Natural Science Foundation of China[21802145] ; Natural Science Foundation of Anhui Province[2008085QB79] ; 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] ; One Hundred Person Project of the Chinese Academy of Sciences, China
WOS关键词	INDUCED BREAKDOWN SPECTROSCOPY ; ELECTROCHEMICAL DETECTION ; STRIPPING ANALYSIS ; ELEMENTAL ANALYSIS ; FACILE SYNTHESIS ; TIO2 NANOTUBES ; METAL REMOVAL ; SENSOR ; ELECTRODE ; SAMPLES
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000569324500010
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; 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 ; One Hundred Person Project of the Chinese Academy of Sciences, China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104112]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Meng; Zhao, Nan-Jing; 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, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Min,Ma, Ming-Jun,Lin, Chu-Hong,et al. Uniform manganese-loaded titanium dioxide nanotube arrays for accurate detection of trace Cd2+ in water, soil and tea: Enhanced stability and sensitivity[J]. CHEMICAL ENGINEERING JOURNAL,2020,400.
APA	Jiang, Min.,Ma, Ming-Jun.,Lin, Chu-Hong.,Yang, Meng.,Fang, Li.,...&Huang, Xing-Jiu.(2020).Uniform manganese-loaded titanium dioxide nanotube arrays for accurate detection of trace Cd2+ in water, soil and tea: Enhanced stability and sensitivity.CHEMICAL ENGINEERING JOURNAL,400.
MLA	Jiang, Min,et al."Uniform manganese-loaded titanium dioxide nanotube arrays for accurate detection of trace Cd2+ in water, soil and tea: Enhanced stability and sensitivity".CHEMICAL ENGINEERING JOURNAL 400(2020).