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Bi3TaO7/Ti3C2 heterojunctions for enhanced photocatalytic removal of water-borne contaminants
文献类型：期刊论文
| 作者 | Li, Kunshan2; Lu, Xinyu2; Zhang, You2; Liu, Kuiliang2; Huang, Yongchao2; Liu, Hong1
|
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 185页码:9 |
| 关键词 | Photocatalysis Bismuth tantalite Ti3C2 Environmental remediation Charge separation |
| ISSN号 | 0013-9351 |
| DOI | 10.1016/j.envres.2020.109409 |
| 通讯作者 | Huang, Yongchao(huangych@gzhu.edu.cn) ; Liu, Hong(liuhong@cigit.ac.cn) |
| 英文摘要 | Novel catalysts are of great interest for improved photocatalytic environmental remediation. Using a hydrothermal method, 0D/2D Bi3TaO7/Ti3C2 heterojunctions were designed rationally and characterized systematically as excellent photocatalysts for photocatalytic degradation. The hybrid catalyst exhibits superior performance in visible-light-driven photocatalytic degradation of methylene blue (about 99% degradation efficiency after 2 h) and excellent stability (up to 10 cycles) under visible light irradiation (300 W Xe lamp; lambda > 420 nm; light intensity 150 mW cm(-2)). In addition, Bi3TaO7/Ti3C2 has a larger rate constant (0.032 min(-1)) than pristine Bi3TaO7 (0.006 min(-1)). Quantum yield (2.27 x 10(-5) molecules/photon) and figure of merit (23.3) of the system were obtained, suggesting that our catalyst has potential for application. Both experimental and computational results indicate that synergistic effects between Bi3TaO7 and Ti3C2 improve photocatalytic performance by enhancing electron-hole pair separation, electronic transmission efficiency, and interfacial charge transfer. These findings contribute to the synthesis of efficient visible-light-driven Bi-based photocatalysts and to the understanding of photocatalytic degradation reactions. |
| 资助项目 | Natural Science Foundation of China[21706295] ; Natural Science Foundation of China[51525805] ; Natural Science Foundation of Guangdong Province[2017A030313055] ; Natural Science Foundation of Guangdong Province[2020A1515010798] ; Pearl River S&T Nova Program of Guangzhou[201906010024] ; Innovative School Project of Guangzhou University[2823010936] ; Graduate student innovation ability training scheme of Guangzhou University[2018GDJC-M02] |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| 语种 | 英语 |
| WOS记录号 | WOS:000530034100018 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/10936]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Huang, Yongchao; Liu, Hong |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China 2.Guangzhou Univ, Inst Environm Res Greater Bay Area, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ,Guangzhou Key Lab Clean Energy & Mat, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Kunshan,Lu, Xinyu,Zhang, You,et al. Bi3TaO7/Ti3C2 heterojunctions for enhanced photocatalytic removal of water-borne contaminants[J]. ENVIRONMENTAL RESEARCH,2020,185:9. |
| APA | Li, Kunshan,Lu, Xinyu,Zhang, You,Liu, Kuiliang,Huang, Yongchao,&Liu, Hong.(2020).Bi3TaO7/Ti3C2 heterojunctions for enhanced photocatalytic removal of water-borne contaminants.ENVIRONMENTAL RESEARCH,185,9. |
| MLA | Li, Kunshan,et al."Bi3TaO7/Ti3C2 heterojunctions for enhanced photocatalytic removal of water-borne contaminants".ENVIRONMENTAL RESEARCH 185(2020):9. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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