Climate Change Data Portal
DOI | 10.1016/j.molliq.2021.117937 |
Modifying g-C3N4 with oxidized Ti3C2 MXene for boosting photocatalytic U(VI) reduction performance | |
Li, Shutong; Wang, Yun; Wang, Jingjing; Liang, Jianjun; Li, Yuqiang; Li, Ping | |
通讯作者 | Li, P (通讯作者),Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. |
发表日期 | 2022 |
ISSN | 0167-7322 |
EISSN | 1873-3166 |
卷号 | 346 |
英文摘要 | The photocatalytic reduction of U(VI) has been regarded as an efficient method for separating uranium from aqueous solution. This study is devoted to develop a catalyst with high photocatalytic efficiency for the reduction of U(VI). The decoration of Ti3C2 on carbon nitride (CN) remarkably improved the adsorption affinity for U(VI), the optical absorbance, and the separation efficiency of the photo-generated electrons and holes, which subsequently enhanced the photocatalytic performance for U(VI) reduction. Compared to pristine CN, the reaction constant of CN/TC-2 for the reduction of U(VI) improved by 14.05 times fold. Owing to the formation of TiO2 on Ti3C2 surface, an all-solid-state Z-scheme hetero-junction was formed, which was key for the efficient separation of charge carriers and the enhancement of the photocatalytic reactivity of CN/TC composites. During the photocatalytic reactions, U(VI) was reduced to U(IV), forming UO2+x (x < 0.25) deposits, and center dot O-2 acted as the dominant reduction species. (C) 2021 Elsevier B.V. All rights reserved. |
关键词 | GRAPHITIC CARBON NITRIDESTATE Z-SCHEMEAQUEOUS-SOLUTIONHYDROGEN EVOLUTIONURANIUM EXTRACTIONVISIBLE-LIGHTTIO2REMOVALSPECTROSCOPYNANOSHEETS |
英文关键词 | Photocatalysis; Uranium; Reduction; g-C3N4; Ti3C2 |
语种 | 英语 |
WOS研究方向 | Chemistry ; Physics |
WOS类目 | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
WOS记录号 | WOS:000754524400005 |
来源期刊 | JOURNAL OF MOLECULAR LIQUIDS |
来源机构 | 中国科学院西北生态环境资源研究院 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/253615 |
作者单位 | [Li, Shutong; Wang, Yun; Wang, Jingjing; Liang, Jianjun; Li, Yuqiang; Li, Ping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Li, Shutong; Wang, Yun; Wang, Jingjing; Liang, Jianjun; Li, Yuqiang; Li, Ping] Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Shutong,Wang, Yun,Wang, Jingjing,et al. Modifying g-C3N4 with oxidized Ti3C2 MXene for boosting photocatalytic U(VI) reduction performance[J]. 中国科学院西北生态环境资源研究院,2022,346. |
APA | Li, Shutong,Wang, Yun,Wang, Jingjing,Liang, Jianjun,Li, Yuqiang,&Li, Ping.(2022).Modifying g-C3N4 with oxidized Ti3C2 MXene for boosting photocatalytic U(VI) reduction performance.JOURNAL OF MOLECULAR LIQUIDS,346. |
MLA | Li, Shutong,et al."Modifying g-C3N4 with oxidized Ti3C2 MXene for boosting photocatalytic U(VI) reduction performance".JOURNAL OF MOLECULAR LIQUIDS 346(2022). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。