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Facile one-pot synthesis of carbon self-doped graphitic carbon nitride loaded with ultra-low ceric dioxide for high-efficiency environmental photocatalysis: Organic pollutants degradation and hexavalent chromium reduction

文献类型：期刊论文

作者Xu, Fuhang1,2; Lai, Cui1,2; Zhang, Mingming1,2; Li, Bisheng1,2; Liu, Shiyu1,2; Chen, Ming3; Li, Ling1,2; Xu, Yang1,2; Qin, Lei1,2; Fu, Yukui1,2
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期2021-11-01
卷号601页码:196-208
ISSN号0021-9797
关键词CeO2 C-doped g-C3N4 Photocatalytic degradation Cr(VI) reduction
DOI10.1016/j.jcis.2021.05.124
通讯作者Lai, Cui(laicui@hnu.edu.cn) ; Chen, Ming(chenming@cigit.ac.cn)
英文摘要In the present study, an innovative carbon self-doped g-C3N4 (CCN) loaded with ultra-low CeO2 (0.067-0.74 wt%) composite photocatalyst is successfully synthesized via a facile one-pot hydrothermal and calcination method. The CeO2/CCN exhibits superior photocatalytic performance for tetracycline degradation (78.9% within 60 min), H2O2 production (151.92 mu mol L-1 within 60 min), and Cr(VI) reduction (99.5% within 40 min), which much higher than that of g-C3N4, CCN, CeO2, and CeO2/g-C3N4. The enhanced photocatalytic performance is originated from the fact that the doping of C can efficaciously broaden the utilization range of solar light and improve the reduction ability of photogenerated electrons. Meanwhile, the ultra-low loading of CeO2 can effectually promote the migration of photogenerated electrons and enhance the specific surface area. Besides, the experiments of pH effect and cycle ability indicate that CeO2/CCN has excellent durability and stability. Finally, the photocatalytic mechanism of CeO2 CCN is systematically discussed. This work proves that combining element doping and semiconductor coupling is a promising strategy to design high-efficiency g-C3N4-based photocatalysts. (C) 2021 Elsevier Inc. All rights reserved.
资助项目Program for the National Natural Science Foundation of China[51779090] ; Program for the National Natural Science Foundation of China[51879101] ; Program for the National Natural Science Foundation of China[51579098] ; Program for the National Natural Science Foundation of China[51809090] ; Program for the National Natural Science Foundation of China[51709101] ; Program for the National Natural Science Foundation of China[51521006] ; Program for the National Natural Science Foundation of China[51909084] ; National Program for Support of Top-Notch Young Professionals of China (2014) ; Program for Changjiang Scholars and Innovative Research Team in University[IRT-13R17] ; Hunan Natural Science Foundation[2020JJ3009] ; Hunan Researcher Award Program[2020RC3025] ; Hunan Provincial Science and Technology Plan Project[2017SK2243] ; Hunan Provincial Science and Technology Plan Project[2018SK20410] ; Program for Ecological restoration and engineering in Chinese Academy of Sciences, Chongqing[E055620201]
WOS研究方向Chemistry
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000688572000007
源URL[http://119.78.100.138/handle/2HOD01W0/14199]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Lai, Cui; Chen, Ming
作者单位1.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
2.Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Fuhang,Lai, Cui,Zhang, Mingming,et al. Facile one-pot synthesis of carbon self-doped graphitic carbon nitride loaded with ultra-low ceric dioxide for high-efficiency environmental photocatalysis: Organic pollutants degradation and hexavalent chromium reduction[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2021,601:196-208.
APA Xu, Fuhang.,Lai, Cui.,Zhang, Mingming.,Li, Bisheng.,Liu, Shiyu.,...&Yang, Xiaofeng.(2021).Facile one-pot synthesis of carbon self-doped graphitic carbon nitride loaded with ultra-low ceric dioxide for high-efficiency environmental photocatalysis: Organic pollutants degradation and hexavalent chromium reduction.JOURNAL OF COLLOID AND INTERFACE SCIENCE,601,196-208.
MLA Xu, Fuhang,et al."Facile one-pot synthesis of carbon self-doped graphitic carbon nitride loaded with ultra-low ceric dioxide for high-efficiency environmental photocatalysis: Organic pollutants degradation and hexavalent chromium reduction".JOURNAL OF COLLOID AND INTERFACE SCIENCE 601(2021):196-208.

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来源：重庆绿色智能技术研究院

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