Ultrathin layer solid transformation-enabled-surface enhanced Raman spectroscopy for trace harmful small gaseous molecule detection

doi:10.1039/c9nh00799g

	Ultrathin layer solid transformation-enabled-surface enhanced Raman spectroscopy for trace harmful small gaseous molecule detection
	Bao, Haoming 1; Zhang, Hongwen 1; Fu, Hao 1,2; Zhou, Le 1,2; Zhang, Peng 1,2; Li, Yue 1,2; Cai, Weiping 1,2
刊名	NANOSCALE HORIZONS
	2020-04-01
卷号	5
ISSN号	2055-6756
DOI	10.1039/c9nh00799g
通讯作者	Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn)
英文摘要	Detection of trace harmful small gaseous molecules (h-SGMs), based on surface enhanced Raman spectroscopy (SERS), has been expected to be a useful strategy but is challenging due to the extremely small Raman cross section (RCS) and weak metal affinity of the h-SGMs. Here, a new strategy, ultrathin layer solid transformation-enabled (ULSTE)-SERS, is proposed. It uses the chemical reaction between the target h-SGM and an ultrathin layer of solid sensing matter coated on a plasmonic metal SERS substrate. This reaction in situ produces a new solid matter with large RCS, which ensures the detection of trace h-SGMs via SERS. The validity of this strategy has been demonstrated by detecting trace H2S gas with an ultrathin CuO layer wrapped around Au nanoparticles. Furthermore, this strategy allows fast and ultrasensitive detection. The detection limit can be down to ppb (even ppt) levels with 10 min preprocessing. Importantly, this strategy has good universality for various other h-SGMs, such as SO2, CS2, CH3SH, and HCl, etc., using appropriate sensing matter. Additionally, the ULSTE-SERS is also suitable for unstable molecules and fast portable detection due to the stable solid layer. This work provides highly efficient SERS-based detection of trace h-SGMs, which is easily applied in practical situations.
资助项目	National Key Research and Development Program of China[2017YFA0207101] ; National Natural Science Foundation of China[11974352] ; National Natural Science Foundation of China[51771182] ; National Natural Science Foundation of China[51531006] ; Chinese Postdoctoral Science Foundation[2019M662211]
WOS关键词	SERS DETECTION ; NANOPARTICLES ; SCATTERING ; ARRAY ; H2S ; CU ; EFFICIENT ; SPECTRA ; COMPLEX ; FILMS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000527781900011
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103377]
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.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Bao, Haoming,Zhang, Hongwen,Fu, Hao,et al. Ultrathin layer solid transformation-enabled-surface enhanced Raman spectroscopy for trace harmful small gaseous molecule detection[J]. NANOSCALE HORIZONS,2020,5.
APA	Bao, Haoming.,Zhang, Hongwen.,Fu, Hao.,Zhou, Le.,Zhang, Peng.,...&Cai, Weiping.(2020).Ultrathin layer solid transformation-enabled-surface enhanced Raman spectroscopy for trace harmful small gaseous molecule detection.NANOSCALE HORIZONS,5.
MLA	Bao, Haoming,et al."Ultrathin layer solid transformation-enabled-surface enhanced Raman spectroscopy for trace harmful small gaseous molecule detection".NANOSCALE HORIZONS 5(2020).