Construction of Ag2CO3/Bi2O2CO3 p-n Heterojunction and Its Photocatalytic Activity

被引：1

作者：

Wang Junjin ^{[1
]}

Zhang Guoying ^{[1
,2
]}

Sun Yaqiu ^{[1
]}

Liu Jingwang ^{[1
]}

机构：

[1] Tianjin Normal Univ, Tianjin Key Lab Struct & Performance Funct Mol, Key Lab Inorgan Organ Hybrid Funct Mat Chem, Coll Chem,Minist Educ, Tianjin 300387, Peoples R China

[2] Shandong Normal Univ, Shandong Prov Key Lab Clean Prod Fine Chem, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2019年 / 40卷 / 12期

关键词：

Bi2O2CO3; Ag2CO3; p-n Heterojunction; Photocatalysis; Charge migration; ONE-POT SYNTHESIS; ROOM-TEMPERATURE; FACILE SYNTHESIS; RHODAMINE-B; MICROSPHERES; DEGRADATION; COMPOSITE; DYE;

D O I：

10.7503/cjcu20190329

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ag2CO3/Bi2O2CO3 (BOC) composite photocatalysts were prepared by a successive precipitation strategy. SEM and TEM results showed that Ag2CO3 nanoparticles were dispersively deposited on the surface of BOC nanosheets. A good p-n heterojunction structure was formed between the two semiconductors. The surface composite of Ag2CO3 effectively widened the light absorption of BOC and promoted the separation of photoinduced carriers. Accordingly, the photoactivity of Ag2CO3/BOC composite was greatly improved. In par. ticular, the sample with Ag2CO3 content of 0.62% showed the best photocatalytic behavior with degradation rate improved by 1.8 times compared with that of BOC. Combining the detected oxidation species and the band positions of the semiconductors, the formation of space charge layer and the charge migration at the p-n heterojunction interface of Ag2CO3 and BOC were proposed.

引用

页码：2590 / 2597

页数：8

共 31 条

[1] Preparation of CdS nanoparticle loaded flower-like Bi2O2CO3 heterojunction photocatalysts with enhanced visible light photocatalytic activity [J].

Ao, Yanhui ;

Xu, Liya ;

Wang, Peifang ;

Wang, Chao ;

Hou, Jun ;

Qian, Jin .

DALTON TRANSACTIONS, 2015, 44 (25) :11321-11330

[2] In situ preparation of novel p-n junction photocatalyst BiOI/(BiO)2CO3 with enhanced visible light photocatalytic activity [J].

Cao, Jing ;

Li, Xin ;

Lin, Haili ;

Chen, Shifu ;

Fu, Xianliang .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 239 :316-324

[3] Highly selective deethylation of rhodamine B:: Adsorption and photooxidation pathways of the dye on the TiO2/SiO2 composite photocatalyst [J].

Chen, F ;

Zhao, JC ;

Hidaka, H .

INTERNATIONAL JOURNAL OF PHOTOENERGY, 2003, 5 (04) :209-217

[4] Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals [J].

Chen, Xiaobo ;

Liu, Lei ;

Yu, Peter Y. ;

Mao, Samuel S. .

SCIENCE, 2011, 331 (6018) :746-750

[5] Semiconductor-based Photocatalytic Hydrogen Generation [J].

Chen, Xiaobo ;

Shen, Shaohua ;

Guo, Liejin ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2010, 110 (11) :6503-6570

[6] Reactable ionic liquid-assisted rapid synthesis of BiOI hollow microspheres at room temperature with enhanced photocatalytic activity [J].

Di, Jun ;

Xia, Jiexiang ;

Ge, Yuping ;

Xu, Li ;

Xu, Hui ;

He, Minqiang ;

Zhang, Qi ;

Li, Huaming .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (38) :15864-15874

[7] Enhanced visible-light-driven photocatalytic inactivation of Escherichia coli by Bi2O2CO3/Bi3NbO7 composites [J].

Gan, Huihui ;

Zhang, Gaoke ;

Huang, Hongxia .

JOURNAL OF HAZARDOUS MATERIALS, 2013, 250 :131-137

[8] Facile synthesis and photocatalytic application of hierarchical mesoporous Bi2MoO6 nanosheet-based microspheres [J].

Guo, Changsheng ;

Xu, Jian ;

Wang, Shanfeng ;

Li, Lei ;

Zhang, Yuan ;

Li, Xiaochen .

CRYSTENGCOMM, 2012, 14 (10) :3602-3608

[9] Synthesis of flower-like heterostructured β-Bi2O3/Bi2O2CO3 microspheres using Bi2O2CO3 self-sacrifice precursor and its visible-light-induced photocatalytic degradation of o-phenylphenol [J].

Hu, Ruiping ;

Xiao, Xin ;

Tu, Shunheng ;

Zuo, Xiaoxi ;

Nan, Junmin .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 163 :510-519

[10] A novel aqueous process for preparation of crystal form-controlled and highly crystalline BiVO4 powder from layered vanadates at room temperature and its photocatalytic and photophysical properties [J].

Kudo, A ;

Omori, K ;

Kato, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (49) :11459-11467

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