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Nitrogen self-doped g-C3N4 nanosheets with tunable band structures for enhanced photocatalytic tetracycline degradation

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成果类型:
期刊论文
作者:
Jiang, Longbo;Yuan, Xingzhong*;Zeng, Guangming;Liang, Jie*;Wu, Zhibin;...
通讯作者:
Yuan, Xingzhong;Liang, Jie
作者机构:
[Zeng, Guangming; Yuan, Xingzhong; Yu, Hanbo; Wang, Hou; Yuan, XZ; Liang, Jie; Zhou, Chengyun; Jiang, Longbo; Mo, Dan] Hunan Univ, Coll Environm Sci & Engn, Changsha 910082, Hunan, Peoples R China.
[Zeng, Guangming; Yuan, Xingzhong; Yu, Hanbo; Wang, Hou; Yuan, XZ; Liang, Jie; Zhou, Chengyun; Jiang, Longbo; Mo, Dan] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
[Xiao, Zhihua; Wu, Zhibin] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.
通讯机构:
[Yuan, XZ; Liang, J] H
Hunan Univ, Coll Environm Sci & Engn, Changsha 910082, Hunan, Peoples R China.
Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
g-C3N4 nanosheets;Nitrogen self-doping;Visible light photocatalysis;Midgap state;Tetracycline degradation
期刊:
Journal of Colloid and Interface Science
ISSN:
0021-9797
年:
2019
卷:
536
页码:
17-29
基金类别:
National Natural Science Foundation of China, ChinaNational Natural Science Foundation of China (NSFC) [51739004, 21776066, 51521006, 71431006]; Key Programs of Research and Development Program of Hunan Province, China [2016SK2015, 2017SK2401]
机构署名:
本校为其他机构
院系归属:
生物科学技术学院
摘要:
Metal-free g-C3N4 is always limited by low surface area, rapid charge recombination and limited visible light absorption. In this study, novel porous nitrogen self-doped g-C3N4 nanosheets were prepared by a combination of N self-doping and thermal exfoliation process. Compared to the bulk g-C3N4, N self-doped g-C3N4 nanosheets possessed a high specific surface area of 74.79m(2)g(-1), enhanced visible light absorption, improved photogenerated electron-holes separation, and prolonged lifetime of photogenerated charge carriers. As a consequence, N self-doped g-C3N4 nanosheets exhibited higher pho...

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