BiOBrxI1-x/BiOBr heterostructure engineering for efficient molecular oxygen activation

被引：93

作者：

Bai, Yang ^{[1
]}

Shi, Xian ^{[1
]}

Wang, Pingquan ^{[1
]}

Wnag, Li ^{[2
]}

Zhang, Kai ^{[1
]}

Zhou, Ying ^{[1
]}

Xie, Haiquan ^{[2
]}

Wang, Jinan ^{[3
]}

Ye, Liqun ^{[1
,2
]}

机构：

[1] Southwest Petr Univ, Sch Oil & Nat Gas Engn, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China

[2] Nanyang Normal Univ, Coll Chem & Pharmaceut Engn, Engn Technol Res Ctr Henan Prov Solar Catalysis, Collaborat Innovat Ctr Water Secur Water Source R, Nanyang 473061, Peoples R China

[3] Inst Politecino Nacl, ESIQIE, Mexico City 07738, DF, Mexico

来源：

CHEMICAL ENGINEERING JOURNAL | 2019年 / 356卷

基金：

中国国家自然科学基金;

关键词：

BiOBrxI1-x/BiOBr; Molecular oxygen activation; Synergistic effect; Environmental remediation; GRAPHITIC CARBON NITRIDE; SINGLET OXYGEN; BISPHENOL-A; WATER; DEGRADATION; GENERATION; PHOTOCATALYSTS; PHARMACEUTICALS; HETEROJUNCTION; TIO2;

D O I：

10.1016/j.cej.2018.09.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

BiOBrxI1-x/BiOBr heterojunction structural photocatalyst was constructed successfully in this work and it was formed by the BiOBrxI1-x solid solution coupling with the BiOBr monomer, which was determined by efficient characterizations. For the photocatalytic property, The BiOBrxI1-x/BiOBr could degrade some organic pollutants efficiently and the oilfield produced waste water treatment efficiency of it was ideal. The reason for its enhanced photocatalytic property was also explored. Through ESR tests, trapping experiments and other efficient methods, the enhanced molecular oxygen activation capacity of induced O-1(2) and O-2(center dot-) photogeneration by BiOBrxI1-x solid solution structure and heterostructure in one photocatalyst was confirmed, respectively. This work provided a new thought for enhanced molecular oxygen activation capacity of bismuth oxyhalide photocatalysts.

引用

页码：34 / 42

页数：9

共 37 条

[1] Characterization of BiOX compounds as photocatalysts for the degradation of pharmaceuticals in water [J].