Effect of surface loading and bulk doping of La3+ on the thermal stability and photocatalytic activity of Bi2O2CO3

	Effect of surface loading and bulk doping of La3+ on the thermal stability and photocatalytic activity of Bi2O2CO3
	Li, Can 1; Feng, Zhaochi 1; Chen, Xuebing 2; Zhang, Jing 2; Li, Shuai 2
刊名	MATERIALS RESEARCH BULLETIN
	2017-10-01
卷号	94 页码:127-133
关键词	Bi2O2CO3 La3+ modifying Impregnation method Coprecipitation method Photocatalysis
英文摘要	The Bi2O2O3 modified Le. was synthesized using two methods of co-precipitation (La-Bi2O2O3) and wet impregnation (La/Bi2O2O3). The effects of the above two modification methods on the stability of Bi2O2CO3 after calcination and the physicochemical properties of Bi2O2CO3 were investigated by XRD, SEM, BET, and XPS. As compared with La-Bi2O2O3, it is observed that Bi2O2CO3 can be effectively stabilized by impregnation method, as La3+ is mainly dispersed onto the surface of Bi2O2O3. The photocatalytic activities for the methyl orange degradation for the La/Bi2O2CO3 and the La-Bi2O2CO3 samples were tested, and the results showed that surface doping (impregnation method) is benefit for the improvement in the photocatalytic activity, as compared with bulk doping (coprecipitation method). PL characterization revealed the differences in the photocatalytic process for surface doping and bulk doping. The surface modification of La3+ greatly suppresses the charge recombination of photogenerated electron hole pairs in Bi2O2CO3, which would be beneficial to improve their photocatalytic activity. (C) 2017 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary
研究领域[WOS]	Materials Science
关键词[WOS]	RHODAMINE-B ; DEGRADATION ; TIO2 ; FABRICATION ; COMPOSITES ; PHASE ; NANOSTRUCTURES ; MICROSPHERES ; TEMPERATURE ; BI2O3
收录类别	SCI
语种	英语
WOS记录号	WOS:000409151200018
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/149993]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 2.Liaoning Shihua Univ, Sch Chem & Mat Sci, POB 110, Fushun 113001, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Can,Feng, Zhaochi,Chen, Xuebing,et al. Effect of surface loading and bulk doping of La3+ on the thermal stability and photocatalytic activity of Bi2O2CO3[J]. MATERIALS RESEARCH BULLETIN,2017,94:127-133.
APA	Li, Can,Feng, Zhaochi,Chen, Xuebing,Zhang, Jing,&Li, Shuai.(2017).Effect of surface loading and bulk doping of La3+ on the thermal stability and photocatalytic activity of Bi2O2CO3.MATERIALS RESEARCH BULLETIN,94,127-133.
MLA	Li, Can,et al."Effect of surface loading and bulk doping of La3+ on the thermal stability and photocatalytic activity of Bi2O2CO3".MATERIALS RESEARCH BULLETIN 94(2017):127-133.