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| Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids | |
Chang, Fei1; Zhang, Jian1; Xie, Yunchao1; Chen, Juan1; Li, Chenlu1; Wang, Jie1; Luo, Jieru1; Deng, Baoqing1; Hu, Xuefeng2 ; Chang, F (reprint author), Shanghai Univ Sci & Technol, Sch Environm & Architecture, Jun Gong Rd 516, Shanghai 200093, Peoples R China. feichang@usst.edu.cn; xfhu@yic.ac.cn
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| 发表期刊 | APPLIED SURFACE SCIENCE
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| ISSN | 0169-4332 |
| 2014-08-30 | |
| 卷号 | 311页码:574-581 |
| 关键词 | Exfoliated G-c3n4 Nanosheets Tio2 Hybrid Photocatalyst Mechanism |
| DOI | 10.1016/j.apsusc.2014.05.111 |
| 产权排序 | [Chang, Fei; Zhang, Jian; Xie, Yunchao; Chen, Juan; Li, Chenlu; Wang, Jie; Luo, Jieru; Deng, Baoqing] Shanghai Univ Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China; [Hu, Xuefeng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | A series of TiO2 hybrids composited with exfoliated g-C3N4 nanosheets (CNs) were successfully synthesized through a facile sal-gel method and fully characterized by X-ray diffraction patterns (XRD), Fourier transform-infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectra (UV-vis DRS). The CNs-TiO2 hybrids were exposed to visible light irradiation and showed much higher catalytic capability toward degrading dye rhodamine B (RhB) comparing with bare TiO2 and N-TiO2. The sample CNs-TiO2-0.05 exhibited the largest apparent reaction rate constant among all CNs-TiO2 hybrids, which was 2.4 times and 7.0 times as high as bare TiO2 and N-TiO2, respectively. The enhanced catalytic efficiency could be mainly attributed to the well-matched band gap structure with heterojunction interface, suitable specific surface area, and favorable optical property. In addition, active species trapping experiments were conducted, revealing that photoinduced holes (hi) had a severe influence on catalytic outcome, through which a possible catalytic mechanism was finally realized and proposed. (C) 2014 Elsevier B.V. All rights reserved.; A series of TiO2 hybrids composited with exfoliated g-C3N4 nanosheets (CNs) were successfully synthesized through a facile sal-gel method and fully characterized by X-ray diffraction patterns (XRD), Fourier transform-infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectra (UV-vis DRS). The CNs-TiO2 hybrids were exposed to visible light irradiation and showed much higher catalytic capability toward degrading dye rhodamine B (RhB) comparing with bare TiO2 and N-TiO2. The sample CNs-TiO2-0.05 exhibited the largest apparent reaction rate constant among all CNs-TiO2 hybrids, which was 2.4 times and 7.0 times as high as bare TiO2 and N-TiO2, respectively. The enhanced catalytic efficiency could be mainly attributed to the well-matched band gap structure with heterojunction interface, suitable specific surface area, and favorable optical property. In addition, active species trapping experiments were conducted, revealing that photoinduced holes (hi) had a severe influence on catalytic outcome, through which a possible catalytic mechanism was finally realized and proposed. (C) 2014 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | Chemistry ; Materials Science ; Physics |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | GRAPHITIC CARBON NITRIDE ; VISIBLE-LIGHT ; TEMPERATURE ; NANOSHEETS ; HETEROJUNCTIONS ; DEGRADATION ; REDUCTION ; FILMS |
| 研究领域[WOS] | Chemistry ; Materials Science ; Physics |
| WOS记录号 | WOS:000339037200080 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8718 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Chang, F (reprint author), Shanghai Univ Sci & Technol, Sch Environm & Architecture, Jun Gong Rd 516, Shanghai 200093, Peoples R China. feichang@usst.edu.cn; xfhu@yic.ac.cn |
| 作者单位 | 1.Shanghai Univ Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Fei,Zhang, Jian,Xie, Yunchao,et al. Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids[J]. APPLIED SURFACE SCIENCE,2014,311:574-581. |
| APA | Chang, Fei.,Zhang, Jian.,Xie, Yunchao.,Chen, Juan.,Li, Chenlu.,...&xfhu@yic.ac.cn.(2014).Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids.APPLIED SURFACE SCIENCE,311,574-581. |
| MLA | Chang, Fei,et al."Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids".APPLIED SURFACE SCIENCE 311(2014):574-581. |
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