Ultrasensitive surface-enhanced Raman spectroscopy detection of gaseous sulfur-mustard simulant based on thin oxide-coated gold nanocone arrays

doi:10.1016/j.jhazmat.2021.126668

	Ultrasensitive surface-enhanced Raman spectroscopy detection of gaseous sulfur-mustard simulant based on thin oxide-coated gold nanocone arrays
	Xu, Wangsheng 1,2; Bao, Haoming 2; Zhang, Hongwen 2; Fu, Hao 1,2; Zhao, Qian 2; Li, Yue 2; Cai, Weiping 1,2
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2021-10-15
卷号	420
关键词	Vaporous sulfur-mustard simulant Thin oxide-coated gold nanocone arrays Ultrasensitive SERS detection Hydroxyl-induced specific binding
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2021.126668
通讯作者	Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn)
英文摘要	Surface Enhanced Raman Spectroscopy (SERS) could be a powerful technique for detecting trace gaseous sulfur mustard, but it is still challenging due to the difficulty in efficiently capturing sulfur-mustard molecules by normal SERS substrates. Here, a chemically trapping strategy is presented for such detection via coating an ultrathin metal-oxide sensing layer on a SERS substrate. In the strategy, a SERS substrate Au-wrapped Si nanocone array is designed and fabricated by Si wafer-based organic template-etching and appropriate Au deposition, and coated with an ultrathin CuO for chemically capturing sulfur-mustard molecules. The validity of such strategy has been demonstrated via taking the gaseous 2-chloroethyl ethyl sulfide (a simulant of sulfur mustard, or 2-CEES for short) as the target molecules. The response of the CuO-coated SERS substrate to the gaseous 2-CEES is detectable within 10 min, and the lowest detectable concentration is 10 ppb or less. Further experiments have shown that there exists an optimal CuO coating thickness which is about 6 nm. The CuO coating-based capture of 2-CEES molecules is attributed to the surface hydroxyl-induced specific adsorption, which is subject to the pseudo-second-order kinetics and Freundlich-typed model. This study presents the practical SERS chips and new route for the trace detection of gaseous sulfur-mustard.
资助项目	National Key Research and Development Program of China[2017YFA0207101] ; Natural Science Foundation of China[11974352] ; Natural Science Foundation of China[51771182] ; Natural Science Foundation of China[52001305] ; CAS/SAF International Partnership Program for Creative Research Teams
WOS关键词	SERS ; DECONTAMINATION ; NANOPARTICLE ; HD ; ADSORPTION ; NANOSHEETS ; ACID ; GD ; VX
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000696892100002
资助机构	National Key Research and Development Program of China ; Natural Science Foundation of China ; CAS/SAF International Partnership Program for Creative Research Teams
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125341]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Hongwen; Cai, Weiping
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys,HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Wangsheng,Bao, Haoming,Zhang, Hongwen,et al. Ultrasensitive surface-enhanced Raman spectroscopy detection of gaseous sulfur-mustard simulant based on thin oxide-coated gold nanocone arrays[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,420.
APA	Xu, Wangsheng.,Bao, Haoming.,Zhang, Hongwen.,Fu, Hao.,Zhao, Qian.,...&Cai, Weiping.(2021).Ultrasensitive surface-enhanced Raman spectroscopy detection of gaseous sulfur-mustard simulant based on thin oxide-coated gold nanocone arrays.JOURNAL OF HAZARDOUS MATERIALS,420.
MLA	Xu, Wangsheng,et al."Ultrasensitive surface-enhanced Raman spectroscopy detection of gaseous sulfur-mustard simulant based on thin oxide-coated gold nanocone arrays".JOURNAL OF HAZARDOUS MATERIALS 420(2021).