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

[1] Cs3Bi2Br9 Nanodots Stabilized on Defective BiOBr Nanosheets by Interfacial Chemical Bonding: Modulated Charge Transfer for Photocatalytic C(sp3)-H Bond Activation [J].

Bai, Zhang-Jun ;

Tian, Sheng ;

Zeng, Tian-Qin ;

Chen, Lang ;

Wang, Bing-Hao ;

Hu, Biao ;

Wang, Xiong ;

Zhou, Wei ;

Pan, Jin-Bo ;

Shen, Sheng ;

Guo, Jun-Kang ;

Xie, Ting-Liang ;

Li, You-Ji ;

Au, Chak-Tong ;

Yin, Shuang-Feng .

ACS CATALYSIS, 2022, 12 (24) :15157-15167

[2] Composite H3PW12O40-TiO2 catalysts for toluene selective photo-oxidation [J].

Bertolini, Guillermo R. ;

Pizzio, Luis R. ;

Kubacka, Anna ;

Munoz-Batista, Mario J. ;

Fernandez-Garcia, Marcos .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 225 :100-109

[3] On the role of monomeric vanadyl species in toluene adsorption and oxidation on V2O5/TiO2 catalysts:: a Raman and in situ DRIFTS study [J].

Besselmann, S ;

Löffler, E ;

Muhler, M .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 162 (1-2) :401-411

[4] Photocatalytic oxidation of toluene to benzaldehyde over anatase TiO2 hollow spheres with exposed {001} facets [J].

Cao, Feng-Lei ;

Wang, Jin-Guo ;

Lv, Fu-Jian ;

Zhang, Die-Qing ;

Huo, Yu-Ning ;

Li, Gui-Sheng ;

Li, He-Xing ;

Zhu, Jian .

CATALYSIS COMMUNICATIONS, 2011, 12 (11) :946-950

[5] Photocatalytic oxidation of toluene on nanoscale TiO2 catalysts:: Studies of deactivation and regeneration [J].

Cao, LX ;

Gao, Z ;

Suib, SL ;

Obee, TN ;

Hay, SO ;

Freihaut, JD .

JOURNAL OF CATALYSIS, 2000, 196 (02) :253-261

[6] Preparation of a Nanosheeted Uranyl-Organic Framework for Enhanced Photocatalytic Oxidation of Toluene [J].

Che, Guang ;

Zhao, Yixin ;

Yang, Weiting ;

Zhou, Qi ;

Li, Xinyi ;

Pan, Qinhe ;

Su, Zhongmin .

INORGANIC CHEMISTRY, 2024, 63 (23) :10767-10774

[7] Bi-based visible light-driven nano-photocatalyst: the design, synthesis, and its application in pollutant governance and energy development [J].

Cui, Yanyan ;

Li, Mengke ;

Zhu, Nali ;

Cheng, Yan ;

Lam, Su Shiung ;

Chen, Jun ;

Gao, Yuxi ;

Zhao, Jiating .

NANO TODAY, 2022, 43

[8] A Supported Bismuth Halide Perovskite Photocatalyst for Selective Aliphatic and Aromatic C-H Bond Activation [J].

Dai, Yitao ;

Poidevin, Corentin ;

Ochoa-Hernandez, Cristina ;

Auer, Alexander A. ;

Tueysuez, Harun .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2020, 59 (14) :5788-5796

[9]

[邓长顺 Deng Changshun], 2024, [中国科学. 化学, Scientia Sinica Chimica], V54, P35

[10] In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity: Synergistic effect [J].

Devarayapalli, Kamakshaiah Charyulu ;

Zeng, Jie ;

Lee, Dae Sung ;

Vattikuti, S. V. Prabhakar ;

Shim, Jaesool .

CHEMOSPHERE, 2022, 298

← 1 2 3 4 5 6 7 →