Highly efficient visible-light photocatalytic performance based on novel AgI/g-C 3 N 4 composite photocatalysts

作者: Chunsheng Lei , Meng Pi , Xiaofeng Zhu , Pengfei Xia , Yingqing Guo

DOI: 10.1016/J.CPLETT.2016.10.031

关键词: Visible spectrumComposite numberX-ray photoelectron spectroscopyFourier transform infrared spectroscopyMethylene blueMaterials scienceAqueous solutionMineralogyCatalysisNuclear chemistryPhotocatalysis

摘要: Abstract A novel AgI/g-C3N4 composite photocatalysts with enhanced visible-light photocatalytic pollutants degradation activity were synthesized by a facile ultrasonication-precipitation method. The characterized XRD, FESEM, FTIR, XPS, DRS and basic test. results proved that the exhibit excellent performance favorable stability towards Methylene blue (MB) in aqueous solution under visible light (λ > 420 nm). Approximately 97.5% of MB was degraded after 1 h irradiation using best catalyst. Superior also achieved cyclic runs, indicating as-prepared photocatalyst has potential application for treatment organic-dye-contaminated wastewaters.

参考文章(38)
Jialiang Liang, Chao Shan, Xu Zhang, Meiping Tong, Bactericidal mechanism of BiOI–AgI under visible light irradiation Chemical Engineering Journal. ,vol. 279, pp. 277- 285 ,(2015) , 10.1016/J.CEJ.2015.05.024
Sushant Sahu, Li Cao, Mohammed J. Meziani, Christopher E. Bunker, K.A. Shiral Fernando, Ping Wang, Ya-Ping Sun, Carbon dioxide photoconversion driven by visible-light excitation of small carbon nanoparticles in various configurations Chemical Physics Letters. ,vol. 634, pp. 122- 128 ,(2015) , 10.1016/J.CPLETT.2015.05.073
Li Liu, Yuehong Qi, Jinyi Yang, Wenquan Cui, Xingang Li, Zisheng Zhang, None, An AgI@g-C3N4 hybrid core@shell structure: Stable and enhanced photocatalytic degradation Applied Surface Science. ,vol. 358, pp. 319- 327 ,(2015) , 10.1016/J.APSUSC.2015.07.212
Jiade Li, Wen Fang, Changlin Yu, Wanqin Zhou, Lihua zhu, Yu Xie, Ag-based semiconductor photocatalysts in environmental purification Applied Surface Science. ,vol. 358, pp. 46- 56 ,(2015) , 10.1016/J.APSUSC.2015.07.139
Yanjuan Sun, Ting Xiong, Zilin Ni, Jie Liu, Fan Dong, Wei Zhang, Wing-Kei Ho, Improving g-C3N4 photocatalysis for NOx removal by Ag nanoparticles decoration Applied Surface Science. ,vol. 358, pp. 356- 362 ,(2015) , 10.1016/J.APSUSC.2015.07.071
Chun Hu, Xuexiang Hu, Liusuo Wang, Jiuhui Qu, Aimin Wang, Visible-light-Induced photocatalytic degradation of azodyes in aqueous AgI/TiO2 dispersion. Environmental Science & Technology. ,vol. 40, pp. 7903- 7907 ,(2006) , 10.1021/ES061599R
Fan Dong, Zaiwang Zhao, Ting Xiong, Zilin Ni, Wendong Zhang, Yanjuan Sun, Wing-Kei Ho, In situ construction of g-C3N4/g-C3N4 metal-free heterojunction for enhanced visible-light photocatalysis. ACS Applied Materials & Interfaces. ,vol. 5, pp. 11392- 11401 ,(2013) , 10.1021/AM403653A