In situ growth of bismuth oxybromide/bismuth molybdate 2D/2D Z-scheme heterojunctions with rich interfacial oxygen vacancies for photocatalytic benzylic C(sp3)-H bond activation

被引：2

作者：

Gu, Songting ^{[1
]}

Li, Chenyu ^{[1
]}

Lin, Xinyan ^{[1
]}

Lin, Xiaotong ^{[1
]}

Xiao, Yingxi ^{[1
]}

Zhao, Xiaoyang ^{[2
]}

Nan, Junmin ^{[1
]}

Xiao, Xin ^{[1
]}

机构：

[1] South China Normal Univ, Sch Chem, MOE Key Lab Theoret Chem Environm, Guangzhou 510006, Peoples R China

[2] Henan Polytech Inst, Dept Environm Engn, Nanyang 473009, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2025年 / 682卷

基金：

中国国家自然科学基金;

关键词：

Selective oxidation of toluene; Photocatalytic C(sp 3 )-H bond activation; Direct Z -scheme heterojunction; Interface-induced oxygen vacancies; 2D/2D BiOBr/Bi 2 MoO 6; HIGHLY-SELECTIVE OXIDATION; CATALYTIC-OXIDATION; TOLUENE; BENZALDEHYDE; EFFICIENT; CONSTRUCTION; HYDROCARBONS; COMPOSITE; BI4O5BR2; GREEN;

D O I：

10.1016/j.jcis.2024.11.233

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The selective oxidation of toluene into valuable chemicals via photocatalytic C(sp3)-H bond activation represents a significant, yet challenging process. Here, the in situ construction of bismuth oxybromide/bismuth molybdate (BiOBr/Bi2MoO6) 2D/2D Z-scheme heterojunctions featuring interface-induced oxygen vacancies (OVs) is introduced. The optimized BiOBr/Bi2MoO6 sample has a remarkable yield rate of benzaldehyde at 2134.28 mu mol g- 1 h- 1 under blue LED irradiation, surpassing the performance of BiOBr and Bi2MoO6 by 8.1 and 2.9 times, respectively. Insights from density functional theory (DFT) calculations, electron paramagnetic resonance (EPR), and in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) studies highlight the critical role of the Z-scheme electronic configuration and OVs in attaining the superior photocatalytic toluene conversion efficiency. This study advances the photocatalytic conversion of benzaldehyde within an OV-enhanced direct Zscheme system, facilitating the activation of inert C(sp3)-H bonds, and contributes to the development of highperformance catalysts for sustainable chemical processes.

引用

页码：467 / 477

页数：11

共 70 条

[11] Synergistic effect of surface oxygen vacancies and interfacial charge transfer on Fe(III)/Bi2MoO6 for efficient photocatalysis [J].

Fu, Feng ;

Shen, Huidong ;

Sun, Xiang ;

Xue, Wenwen ;

Shoneye, Ayoola ;

Ma, Jiani ;

Luo, Lei ;

Wang, Danjun ;

Wang, Jianguo ;

Tang, Junwang .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2019, 247 :150-162

[12] Graphene-based aerogels in water and air treatment: A review [J].

Gao, Bin ;

Feng, Xiangbo ;

Zhang, Yaofei ;

Zhou, Zhuoxuan ;

Wei, Jiafeng ;

Qiao, Rong ;

Bi, Fukun ;

Liu, Ning ;

Zhang, Xiaodong .

CHEMICAL ENGINEERING JOURNAL, 2024, 484

[13] 3D-cavity-confined CsPbBr3 quantum dots for visible-light-driven photocatalytic C(sp3)-H bond activation [J].

Gao, Yu-Jie ;

Jin, Handong ;

Esteban, Daniel A. ;

Weng, Bo ;

Saha, Rafikul A. ;

Yang, Min-Quan ;

Bals, Sara ;

Steele, Julian A. ;

Huang, Haowei ;

Roeffaers, Maarten B. J. .

CARBON ENERGY, 2024, 6 (11)

[14] Novel plate-on-plate hollow structured BiOBr/Bi2MoO6 p-n heterojunctions: In-situ chemical etching preparation and highly improved photocatalytic antibacterial activity [J].

Hao, Lei ;

Ju, Peng ;

Zhang, Yu ;

Sun, Chengjun ;

Dou, Kunpeng ;

Liao, Dankui ;

Zhai, Xiaofan ;

Lu, Zhaoxia .

SEPARATION AND PURIFICATION TECHNOLOGY, 2022, 298

[15] Unraveling the importance between electronic intensity and oxygen vacancy on photothermocatalytic toluene oxidation over CeO2 [J].

Hao, Ying-juan ;

Ma, Yue-guang ;

Zhang, Xiao ;

Li, Jianjun ;

Wang, Saifei ;

Chen, Xuemin ;

Li, Fa-tang .

CHEMICAL ENGINEERING JOURNAL, 2022, 433

[16] Light-induced secondary hydroxyl defects in Sr1-xSn(OH)6 enable sustained and efficient photocatalytic toluene mineralization [J].

He, Wenjie ;

Li, Jieyuan ;

Hou, Xifeng ;

Chen, Peng ;

Wang, Hong ;

Dong, Xing'an ;

Dong, Fan ;

Sun, Yanjuan .

CHEMICAL ENGINEERING JOURNAL, 2022, 427

[17] Operando FTIR study of the photocatalytic oxidation of methylcyclohexane and toluene in air over TiO2-ZrO2 thin films: Influence of the aromaticity of the target molecule on deactivation [J].

Hernandez-Alonso, Maria D. ;

Tejedor-Tejedor, Isabel ;

Coronado, Juan M. ;

Anderson, Marc A. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 101 (3-4) :283-293

[18] Nitrogen-induced TiO2 electric field polarization for efficient photodegradation of high-concentration ethyl acetate: Mechanisms and reaction pathways [J].

Huang, Jianghua ;

Wei, Jiafeng ;

Tian, Fengyuan ;

Bi, Fukun ;

Rao, Renzhi ;

Wang, Yuxin ;

Tao, Hengcong ;

Liu, Ning ;

Zhang, Xiaodong .

MATERIALS TODAY CHEMISTRY, 2024, 41

[19] Liquid Phase Catalytic Oxidation of Toluene Over Rich Silica and Alumina Composition of Hierarchical Ordered ZSM-5 Zeolites Prepared Without Organic Templates [J].

Jesudoss, S. K. ;

Vijaya, J. Judith ;

Siyachidambaram, M. ;

Kennedy, L. John ;

Jothiramalingam, R. ;

Al-Lohedan, Hamad A. .

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2018, 18 (08) :5367-5379

[20] In-situ assembled S-scheme heterojunction of CsPbBr3 nanocrystals and W18O49 ultrathin nanowires for enhanced bifunctional photocatalysis [J].

Jiang, Xinyan ;

Chen, Zhihao ;

Shu, Yang ;

Idris, Ahmed Mahmoud ;

Li, Sheng ;

Peng, Baojin ;

Wang, Jin ;

Li, Zhengquan .

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2024, 348

← 1 2 3 4 5 6 7 →