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 > 机电工程学院

	Enhanced Photocatalytic Degradation Activity of BiFeO3 Microspheres by Decoration with g-C3N4 Nanoparticles
	Di, Lijing 1,2; Yang, Hua 1; Xian, Tao 2; Chen, Xiujuan 1
刊名	MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
	2018
卷号	21 期号:5
关键词	BiFeO3 g-C3N4 nanoparticles composite photocatalysis.
ISSN号	1516-1439
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 (center dot OH) plays a minor role in the photocatalytic reaction.
资助项目	National Natural Science Foundation of China[51662027][51602170] ; Natural Science Foundation of Qinghai, China[2016-ZJ-954Q] ; "ChunHui" Program of Ministry of Education of China[Z2016074][Z2016075] ; Youth Science Foundation of Qinghai Normal University[15ZR07]
WOS研究方向	Materials Science
语种	英语
出版者	UNIV FED SAO CARLOS, DEPT ENGENHARIA MATERIALS
WOS记录号	WOS:000440037100001
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32896]
专题	机电工程学院理学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Yang, Hua
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Qinghai Normal Univ, Coll Phys & Elect Informat Engn, Xining 810008, Qinghai, Peoples R 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-IBERO-AMERICAN JOURNAL OF MATERIALS,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-IBERO-AMERICAN JOURNAL OF MATERIALS,21(5).
MLA	Di, Lijing,et al."Enhanced Photocatalytic Degradation Activity of BiFeO3 Microspheres by Decoration with g-C3N4 Nanoparticles".MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS 21.5(2018).