Construction of Rutile-TiO2 Nanoarray Homojuction for Non-Contact Sensing of TATP under Natural Light

doi:10.3390/coatings10040409

	Construction of Rutile-TiO2 Nanoarray Homojuction for Non-Contact Sensing of TATP under Natural Light
	Tang, Yan 2; Zhang, Yuxiang 1,3; Xie, Guanshun 2; Zheng, Youxiong 2; Yu, Jianwei 2; Gao, Li 2; Liu, Bingxin 2
刊名	COATINGS
	2020-04-01
卷号	10
关键词	TiO2: homojunction TATP contactless detection
DOI	10.3390/coatings10040409
通讯作者	Gao, Li(2007990030@qhu.edu.cn) ; Liu, Bingxin(liubx408@nenu.edu.cn)
英文摘要	Triacetone triperoxide (TATP) is a new terrorist explosive, and most nitrogen-based sensors fail to detect TATP. Herein, a sea urchin-like TiO2-covered TiO2 nanoarray is constructed as a TATP-sensitive homojunction (HJ) by one step hydrothermal method. By taking fluorine-doped tin oxide (FTO) and indium tin oxide (ITO) conducting glass as the substrate, the conducting glass is horizontally and vertically put in the reactor to epitaxially grow TiO2-FTO, TiO2-ITO, TiO2-FTO-HJ and TiO2-ITO-HJ. TiO2-FTO-HJ shows a broad absorption band edge in the visible region and high sensitivity to TATP under the simulating natural light compared with TiO2-FTO, TiO2-ITO, and TiO2-ITO-HJ. E-field intensity distribution simulation reveals that constructing homojunctions between the urchin-shaped TiO2 nanosphere and TiO2 nanoarrays can enhance the localized electromagnetic field intensity at the interface of junctions, which may provide photocatalysis active sites to reduce TATP molecules by promoting charge separation. Moreover, the TiO2-FTO-HJ shows high selectivity to TATP among ammonium nitrate, urea and sulfur, which are common homemade explosive raw materials.
资助项目	National Natural Science Foundation of China[21804078] ; Natural Science Foundation of Qinghai Province[2020-ZJ-764] ; Thousand Talents Program of Qinghai Province
WOS关键词	GAS SENSOR ; FABRICATION ; EXPLOSIVES
WOS研究方向	Materials Science
语种	英语
出版者	MDPI
WOS记录号	WOS:000534630600106
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Qinghai Province ; Thousand Talents Program of Qinghai Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103203]
专题	中国科学院合肥物质科学研究院
通讯作者	Gao, Li; Liu, Bingxin
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Qinghai Univ, Qinghai Prov Key Lab New Light Alloys, Qinghai Prov Engn Res Ctr High Performance Light, Xining 810016, Peoples R China 3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Tang, Yan,Zhang, Yuxiang,Xie, Guanshun,et al. Construction of Rutile-TiO2 Nanoarray Homojuction for Non-Contact Sensing of TATP under Natural Light[J]. COATINGS,2020,10.
APA	Tang, Yan.,Zhang, Yuxiang.,Xie, Guanshun.,Zheng, Youxiong.,Yu, Jianwei.,...&Liu, Bingxin.(2020).Construction of Rutile-TiO2 Nanoarray Homojuction for Non-Contact Sensing of TATP under Natural Light.COATINGS,10.
MLA	Tang, Yan,et al."Construction of Rutile-TiO2 Nanoarray Homojuction for Non-Contact Sensing of TATP under Natural Light".COATINGS 10(2020).