Effect of surface loading and bulk doping of La3+ on the thermal stability and photocatalytic activity of Bi2O2CO3 | |
Li, Shuai1; Zhang, Jing1; Chen, Xuebing1; Feng, Zhaochi2; Li, Can2 | |
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/321008/149893] |
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.Liaoning Shihua Univ, Sch Chem & Mat Sci, POB 110, Fushun 113001, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Shuai,Zhang, Jing,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, Shuai,Zhang, Jing,Chen, Xuebing,Feng, Zhaochi,&Li, Can.(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, Shuai,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. |
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