Protonated g-C3N4/Ti( )(3+)self-doped TiO2 nanocomposite films: Room-temperature preparation, hydrophilicity, and application for photocatalytic NOx removal

doi:10.1016/j.apcatb.2018.08.078

IEECAS OpenIR > 粉尘与环境研究室

	Protonated g-C3N4/Ti( )(3+)self-doped TiO2 nanocomposite films: Room-temperature preparation, hydrophilicity, and application for photocatalytic NOx removal
	Huang, Yu 1,2; Wang, Pengge 1; Wang, Zhenyu 1; Rao, Yongfang 3; Cao, Jun-ji 1,2; Pu, Shengyan 4; Ho, Wingkei 5; Lee, Shun Cheng 6
通讯作者	Huang, Yu(huangyu@ieecas.cn)
	2019
发表期刊	APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN	0926-3373
卷号	240 页码:122-131
摘要	Fabrication of photocatalysis films with good adhesion, hydrophilicity, and high activity on substrates at room temperature is essential for their application in air pollution control. Herein, functionalized transparent composite films containing ultrathin protonated g-C3N4 (pCN) nanosheets and Ti3+ self-doped TiO2 nanoparticles (pCN/TiO2) were fabricated on glass at room temperature. Thickness of the films measures 80 nm with surface roughness of 7.16 nm. The adhesion ability was attributed to the viscosity of TiO2 sol, which served as "chemical glue" in the films. The high photo-induced hydrophilicity demonstrated their self-cleaning potential. pCN/TiO2 films showed remarkably high visible-light-driven activity in terms of NO removal in a continuous-flow mode. Photoelectrochemical tests demonstrated the superior charge separation efficiency of pCN/TiO2 films compared with that of pristine TiO2. As identified by electron spin resonance spectra, center dot O-2(-) and center dot OH radicals were the key reactive species involved in NO removal. The possible mechanism for photocatalytic NO oxidation was proposed. Potential cytotoxicity of pCN/TiO2 films was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay to ensure the biosecurity. This work provides a facile route to fabricate nanocomposite films under ambient temperature. The nanocomposite films were characterized by photo-induced hydrophilicity, high NO removal efficiency, and good biocompatibility, showing its potential in large-scale application.
关键词	pCN/TiO2 films Room-temperature preparation Hydrophilicity NOx removal Biocompatibility
DOI	10.1016/j.apcatb.2018.08.078
关键词[WOS]	TITANIUM-DIOXIDE MATERIALS ; CARBON NITRIDE ; ANATASE TIO2 ; THIN-FILMS ; PHOTOINDUCED HYDROPHILICITY ; CHARGE-TRANSFER ; LIGHT ; NANOPARTICLES ; DEGRADATION ; HETEROJUNCTIONS
收录类别	SCI ; SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFA0203000] ; State Key Lab of Loess and Quaternary Geology[SKLLQGPY1605] ; National Science Foundation of China[41573138] ; Key Project of International Cooperation of the Chinese Academy of Sciences[GJHZ1543] ; Research Grants Council of Hong Kong[PolyU 152083/14E] ; Hundred Talent Program of the Chinese Academy of Sciences
WOS研究方向	Chemistry ; Engineering
项目资助者	National Key Research and Development Program of China ; State Key Lab of Loess and Quaternary Geology ; National Science Foundation of China ; Key Project of International Cooperation of the Chinese Academy of Sciences ; Research Grants Council of Hong Kong ; Hundred Talent Program of the Chinese Academy of Sciences
WOS类目	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000461002800013
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：115[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14270
专题	粉尘与环境研究室
通讯作者	Huang, Yu
作者单位	1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China 3.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 4.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China 5.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Peoples R China 6.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yu,Wang, Pengge,Wang, Zhenyu,et al. Protonated g-C3N4/Ti( )(3+)self-doped TiO2 nanocomposite films: Room-temperature preparation, hydrophilicity, and application for photocatalytic NOx removal[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,240:122-131.
APA	Huang, Yu.,Wang, Pengge.,Wang, Zhenyu.,Rao, Yongfang.,Cao, Jun-ji.,...&Lee, Shun Cheng.(2019).Protonated g-C3N4/Ti( )(3+)self-doped TiO2 nanocomposite films: Room-temperature preparation, hydrophilicity, and application for photocatalytic NOx removal.APPLIED CATALYSIS B-ENVIRONMENTAL,240,122-131.
MLA	Huang, Yu,et al."Protonated g-C3N4/Ti( )(3+)self-doped TiO2 nanocomposite films: Room-temperature preparation, hydrophilicity, and application for photocatalytic NOx removal".APPLIED CATALYSIS B-ENVIRONMENTAL 240(2019):122-131.