Protonated g-C3N4/Ti( )(3+)self-doped TiO2 nanocomposite films: Room-temperature preparation, hydrophilicity, and application for photocatalytic NOx removal
文献类型：期刊论文
| 作者 | Huang, Yu3,4; Wang, Pengge4; Wang, Zhenyu4; Rao, Yongfang2; Cao, Jun-ji3,4; Pu, Shengyan6; Ho, Wingkei1; Lee, Shun Cheng5 |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2019 |
| 卷号 | 240页码:122-131 |
| ISSN号 | 0926-3373 |
| 关键词 | pCN/TiO2 films Room-temperature preparation Hydrophilicity NOx removal Biocompatibility |
| DOI | 10.1016/j.apcatb.2018.08.078 |
| 通讯作者 | Huang, Yu(huangyu@ieecas.cn) |
| 英文摘要 | 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. |
| WOS关键词 | TITANIUM-DIOXIDE MATERIALS ; CARBON NITRIDE ; ANATASE TIO2 ; THIN-FILMS ; PHOTOINDUCED HYDROPHILICITY ; CHARGE-TRANSFER ; LIGHT ; NANOPARTICLES ; DEGRADATION ; HETEROJUNCTIONS |
| 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 |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000461002800013 |
| 资助机构 | 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 |
| 源URL | [http://ir.ieecas.cn/handle/361006/14269]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Huang, Yu |
| 作者单位 | 1.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Peoples R China 2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China 5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 6.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, 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. |
入库方式： OAI收割
来源：地球环境研究所
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