Enhanced photocatalytic degradation activity of BiFeO3 microspheres by decoration with g-C3N4 nanoparticles

doi:10.1590/1980-5373-mr-2018-0081

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Enhanced photocatalytic degradation activity of BiFeO3 microspheres by decoration with g-C3N4 nanoparticles
	Di, Lijing 1,2; Yang, Hua 2; Xian, Tao 1; Chen, Xiujuan 2
刊名	Materials Research
	2018-07-01
卷号	21 期号:5
关键词	Biodegradation Complexation Hydrogen peroxide Iron compounds Microspheres Nanoparticles Photocatalytic activity Synthesis (chemical) Catalytic stability Hydrothermal treatments Photo catalytic degradation Photo-induced charge Photocatalytic reactions Photogenerated electrons Photogenerated holes Simulated sunlight
ISSN号	15161439
DOI	10.1590/1980-5373-mr-2018-0081
英文摘要	In this work, the g-C3N4 nanoparticles decorated BiFeO3 microspheres composites (g-C3N4/ BiFeO3) were successfully synthesized by hydrothermal treatment of g-C3N4 nanoparticles together with BiFeO3 microspheres. The SEM and HRTEM observation indicate that the C3N4 nanoparticles with size of 30-50 nm are well decorated on the surface of BiFeO3 microspheres. The photocatalytic activities of the samples are investigated by the degradation of methylene blue (MB) under the irradiation of simulated sunlight. The as-prepared g-C3N4/BiFeO3 composites exhibit remarkable enhanced photocatalytic activity compared with bare BiFeO3. More importantly, the photocataltic performance of the composites is further confirmed by the degradation of colorless phenol. Furthermore, the favorable catalytic stability of composites is demonstrated through the recycling photocatalytic experiment. The enhanced photocatalytic activity of g-C3N4/BiFeO3 composites is mainly attributed to the separation of the photogenerated electron-hole pairs, resulting from the migration of the photoinduced charge between g-C3N4 nanoparticles and BiFeO3. A possible photocatalytic mechanism for dye degradation over g-C3N4/BiFeO3 composite is proposed based on the active species trapping experiment, revealing that the photogenerated hole (h+) and hydrogen peroxide (H2O2) are regarded as the major active species for the decomposition of dye, while hydroxyl radicals (•OH) plays a minor role in the photocatalytic reaction. © 2018 Universidade Federal de Sao Carlos. All rights reserved.
WOS研究方向	Materials Science
语种	英语
出版者	Universidade Federal de Sao Carlos
WOS记录号	WOS:000440037100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150560]
专题	理学院机电工程学院
作者单位	1.College of Physics and Electronic Information Engineering, Qinghai Normal University, Xining; 810008, China 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Di, Lijing,Yang, Hua,Xian, Tao,et al. Enhanced photocatalytic degradation activity of BiFeO3 microspheres by decoration with g-C3N4 nanoparticles[J]. Materials Research,2018,21(5).
APA	Di, Lijing,Yang, Hua,Xian, Tao,&Chen, Xiujuan.(2018).Enhanced photocatalytic degradation activity of BiFeO3 microspheres by decoration with g-C3N4 nanoparticles.Materials Research,21(5).
MLA	Di, Lijing,et al."Enhanced photocatalytic degradation activity of BiFeO3 microspheres by decoration with g-C3N4 nanoparticles".Materials Research 21.5(2018).