Ultrathin Hexagonal PbO Nanosheets Induced by Laser Ablation in Water for Chemically Trapping Surface-Enhanced Raman Spectroscopy Chips and Detection of Trace Gaseous H2S

doi:10.1021/acsami.0c03802

	Ultrathin Hexagonal PbO Nanosheets Induced by Laser Ablation in Water for Chemically Trapping Surface-Enhanced Raman Spectroscopy Chips and Detection of Trace Gaseous H2S
	Fu, Hao 1,2; Liu, Guangqiang 1; Bao, Haoming 1; Zhou, Le 1,2; Zhang, Hongwen 1; Zhao, Qian 1; Li, Yue 1; Cai, Weiping 1,2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2020-05-20
卷号	12
关键词	ultrathin hexagonal PbO nanosheets laser ablation in water chemically trapping SERS chip trace detection of gaseous H2S reusable performance
ISSN号	1944-8244
DOI	10.1021/acsami.0c03802
通讯作者	Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn)
英文摘要	Lead oxide (PbO) nanosheets are of significance in the design of functional devices. However, facile, green, and fast fabrication of ultrathin and homogenous PbO nanosheets with a chemically clean surface is still desirable. Herein, a simple and chemically clean route is developed for fabricating such nanosheets via laser ablation of a lead target in water for a short time and then ambient aging. The obtained PbO nanosheets are (002)-oriented with microsize in planar dimension and similar to 15 nm in thickness. They are mostly hexagonal in shape. Experimental observations of the morphological evolution have revealed that the formation of such PbO nanosheets can be attributed to two processes: (i) laser ablation-induced formation of ultrafine Pb and PbO nanoparticles (NPs) and (ii) PbO NP aggregation and their oriented connection growth. Importantly, a composite surface-enhanced Raman spectroscopy (SERS) chip is designed and fabricated by covering a PbO nanosheet monolayer on a Au NP film. Such a composite SERS chip can be used for the fast and trace detection of gaseous H2S in which the PbO nanosheets can effectively chemically trap H2S molecules, demonstrating a new application of these PbO nanosheets. The response of this chip to H2S can be detected within 10 s, and the detection limit is below 1 ppb. Also, this PbO nanosheet-based chip is reusable by heating after use. This study not only deepens the understanding of the NP-based formation mechanism of nanosheets but also provides the renewable SERS chips for the highly efficient detection of trace gaseous H2S.
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[51531006] ; CAS/SAF International Partnership Program for Creative Research Teams
WOS关键词	HYDROGEN-SULFIDE ; ALPHA-PBO ; GOLD NANOPARTICLES ; BETA-PBO ; LIQUID ; PHASE ; NANOMATERIALS ; EXFOLIATION ; SPECTRA
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000537394100095
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/334002/103061]
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	Fu, Hao,Liu, Guangqiang,Bao, Haoming,et al. Ultrathin Hexagonal PbO Nanosheets Induced by Laser Ablation in Water for Chemically Trapping Surface-Enhanced Raman Spectroscopy Chips and Detection of Trace Gaseous H2S[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12.
APA	Fu, Hao.,Liu, Guangqiang.,Bao, Haoming.,Zhou, Le.,Zhang, Hongwen.,...&Cai, Weiping.(2020).Ultrathin Hexagonal PbO Nanosheets Induced by Laser Ablation in Water for Chemically Trapping Surface-Enhanced Raman Spectroscopy Chips and Detection of Trace Gaseous H2S.ACS APPLIED MATERIALS & INTERFACES,12.
MLA	Fu, Hao,et al."Ultrathin Hexagonal PbO Nanosheets Induced by Laser Ablation in Water for Chemically Trapping Surface-Enhanced Raman Spectroscopy Chips and Detection of Trace Gaseous H2S".ACS APPLIED MATERIALS & INTERFACES 12(2020).