Boosted Activity for Toluene Selective Photooxidation over Fe-Doped Bi2WO6

被引：56

作者：

Deng, Xin-Xin ^{[1
]}

Tian, Sheng ^{[1
]}

Chai, Zhao-Ming ^{[1
]}

Bai, Zhang-Jun ^{[1
]}

Tan, Yu-Xuan ^{[1
]}

Chen, Lang ^{[1
]}

Guo, Jun-Kang ^{[1
]}

Shen, Sheng ^{[1
]}

Cai, Meng-Qiu ^{[2
]}

Au, Chak-Tong ^{[3
]}

Yin, Shuang-Feng ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn,Minist Educ, State Key Lab Chemo Biosensing & Chemometr,Adv Ca, Prov Hunan Key Lab Cost Effect Utilizat Fossil Fu, Changsha 410082, Peoples R China

[2] Hunan Univ, Sch Phys & Elect Sci, Changsha 410082, Peoples R China

[3] Hunan Inst Engn, Coll Chem & Chem Engn, Xiangtan 411104, Hunan, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2020年 / 59卷 / 30期

基金：

中国国家自然科学基金;

关键词：

C-H BONDS; PHOTOCATALYTIC OXIDATION; SOLVENT-FREE; EFFICIENT; BENZALDEHYDE; ACTIVATION; OXYGEN; SEMICONDUCTORS; PERFORMANCE; DERIVATIVES;

D O I：

10.1021/acs.iecr.0c02872

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Selective photooxidation of toluene to benzaldehyde using O-2 as an oxidant has the advantages of mild reaction conditions and excellent atomic economy, but it often suffers from low conversion efficiency. To promote the photooxidation process, we fabricated iron-doped Bi2WO6 microflowers by a simple hydrothermal method to boost the formation of oxygen vacancies. The rich presence of oxygen vacancies not only accelerates the separation of photogenerated charge carriers but also enhances O-2 activation for center dot O-2(-) generation. Besides the slight improvement of Bi2WO6 stability, the Fe-doped Bi2WO6 displays enhanced activity and selectivity for benzaldehyde generation from toluene under visible light. This work illustrates a simple strategy for successful modulation of Bi2WO6 for improved performance in the photocatalytic selective oxidation processes.

引用

页码：13528 / 13538

页数：11

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