A facile synthesis of a highly efficient β-Bi2O3/Bi2O2CO3heterojunction with enhanced photocatalytic NO oxidation under visible light

被引：14
作者：
Hao, Yaru [1 ]
Deng, Zhaoqi [1 ]
Zhao, Ziquan [1 ]
Song, Xijia [1 ]
机构：
[1] Univ Elect Sci & Technol China, Zhongshan Inst, 1 Xueyuan Rd, Zhongshan 528402, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2020年 / 44卷 / 26期
关键词：
DOPED TIO2; 001; FACETS; DEGRADATION; BI2O2CO3; HETEROJUNCTIONS; TRANSFORMATION; FABRICATION; ADSORPTION; REDUCTION; REMOVAL;
D O I：
10.1039/d0nj01325k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The construction of a beta-Bi2O3/Bi(2)O(2)CO(3)heterojunction is an effective approach to separate the photogenerated charge carriers and to improve the photocatalytic performance of the semiconductor photocatalysts. In this study, a composite nanosheet of beta-Bi2O3/Bi(2)O(2)CO(3)was fabricatedviaanin situannealing of Bi(2)O(2)CO(3)at 380 degrees C. The composite showed an excellent adsorption toward NO and an enhanced photocatalytic efficiency over NO oxidation from 5.7 v/v% (bare Bi2O2CO3) to 32.5 v/v% (beta-Bi2O3/Bi2O2CO3). Furthermore, the presence of the beta-Bi2O3/Bi(2)O(2)CO(3)heterojunction promoted the formation of additional O-center dot(2)-, and then improved the NO oxidation activity and safety of BOC in conjunction with (OH)-O-center dot.
引用
收藏
页码：10989 / 10993
页数：5
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