Surface oxygen vacancies of Pd/Bi2MoO6-x acts as "Electron Bridge" to promote photocatalytic selective oxidation of alcohol

被引：141
作者：
Sun, Zhaoli [1 ]
Yang, Xiaolong [1 ]
Yu, Xue-Fang [2 ]
Xia, Linhong [1 ]
Peng, Yanhua [1 ]
Li, Zhuo [1 ]
Zhang, Yan [1 ]
Cheng, Jianbo [2 ]
Zhang, Kaisheng [3 ]
Yu, Jianqiang [1 ]
机构：
[1] Qingdao Univ, Coll Chem & Chem Engn, 308 Ning Xia Rd, Qingdao 266071, Peoples R China
[2] Yantai Univ, Sch Chem & Chem Engn, Lab Theoret & Computat Chem, 32 Qingquan Rd, Yantai 264005, Peoples R China
[3] Chinese Acad Sci, HFIPS, Inst Solid State Phys, Environm Mat & Pollut Control Lab, Hefei 230031, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 285卷
基金：
中国国家自然科学基金;
关键词：
Surface oxygen vacancies; Electron bridge; Pd; Bi(2)MoO(6)selective oxidation; TOTAL-ENERGY CALCULATIONS; VISIBLE-LIGHT; ULTRATHIN NANOSHEETS; NANOPARTICLES; WATER; HETEROSTRUCTURE; TIO2; PD;
D O I：
10.1016/j.apcatb.2020.119790
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 recombination of photogenerated carriers seriously restricts their utilization efficiency in photocatalysis. Herein, surface oxygen vacancies (SOVs) were constructed in Pd-Bi2MoO6 interface to bridge ultra-low loading Pd cluster and Bi2MoO6 semiconductor (Pd/BMO-SOVs). It was found SOVs in Pd/Bi2MoO6-x serve as "Electron Bridge" to bridge ultra-low loading Pd cluster and Bi2MoO6-x, thus tremendously enhance utilization efficiency of photoexcited carriers and ultra-low loading Pd active sites for blue LED driven selective oxidation reaction. The Pd(0.05)/Bi2MoO6-SOVs exhibited 57.8 % conversion for selection oxidation of benzyl which are 6.5, 3.3 and 2.1 times higher than pristine Bi2MoO6, Bi2MoO6-x and Pd(0.05)/Bi2MoO6. Combined with theoretical calculations, SOVs was proposed as "Electron Bridge" to transfer photogenerated electrons from Bi2MoO6-x to ultra-low loading Pd clusters, thus greatly boosting separation and utilization efficiency of photogenerated electron-hole pairs.
引用
收藏
页数：12
相关论文
共 50 条
  • [21] Oxygen vacancy induced electron traps in tungsten doped Bi2MoO6 for enhanced photocatalytic performance
    Sun, Chang
    Zhao, Zitong
    Fan, Hougang
    Chen, Yanli
    Liu, Xiaoyan
    Cao, Jian
    Lang, Jihui
    Wei, Maobin
    Liu, Huilian
    Yang, Lili
    CRYSTENGCOMM, 2021, 23 (41) : 7270 - 7277
  • [22] Construction of Bi2WO6 with double active sites of tunable metallic Bi and oxygen vacancies for photocatalytic oxidation of cyclohexane to cyclohexanone
    Wang, Junlei
    Wang, Kuan
    He, Zhen-Hong
    Sun, Tong
    You, Run-Jing
    Chen, Jian-Gang
    Wang, Weitao
    Yang, Yang
    Liu, Zhao-Tie
    DALTON TRANSACTIONS, 2023, 52 (02) : 476 - 486
  • [23] Enhanced photocatalytic performance of Bi2MoO6 via strain engineering through collaborative optimization of indium doping and oxygen vacancies
    Chang, Xinyue
    Liu, Jiayu
    Guo, Zhiyuan
    Cheng, Yanan
    Yan, Qishe
    Li, Yan-Yang
    APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2024, 349
  • [24] Enhanced Exciton Effect and Singlet Oxygen Generation Triggered by Tunable Oxygen Vacancies on Bi2MoO6 for Efficient Photocatalytic Degradation of Sodium Pentachlorophenol
    Xu, Xiao
    Yang, Xianglong
    Tao, Yunlong
    Zhu, Wen
    Ding, Xing
    Zhu, Junjiang
    Chen, Hao
    INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2022, 23 (23)
  • [25] Synergistic effect of ultrathin thickness and surface oxygen vacancies in high-efficiency Ti-mediated Bi2MoO6 for immense photocatalytic nitrofurantoin degradation and Cr(VI) reduction
    Arif, Muhammad
    Zhang, Min
    Qiu, Bo
    Yao, Jiacheng
    Bu, Qingxia
    Ali, Amjad
    Muhmood, Tahir
    Hussian, Ijaz
    Liu, Xiaoheng
    Zhou, Baojing
    Wang, Xin
    APPLIED SURFACE SCIENCE, 2021, 543
  • [26] To boost photocatalytic activity in selective oxidation of alcohols on ultrathin Bi2MoO6 nanoplates with Pt nanoparticles as cocatalyst
    Zhang, Bao
    Li, Jun
    Gao, Yuying
    Chong, Ruifeng
    Wang, Zhiliang
    Guo, Lin
    Zhang, Xianwen
    Li, Can
    JOURNAL OF CATALYSIS, 2017, 345 : 96 - 103
  • [27] Oxygen vacancies enhanced photocatalytic activity towards VOCs oxidation over Pt deposited Bi2WO6 under visible light
    Zhang, Shuoshuo
    Pu, Wenhong
    Chen, Ayan
    Xu, Yake
    Wang, Yunyang
    Yang, Changzhu
    Gong, Jianyu
    JOURNAL OF HAZARDOUS MATERIALS, 2020, 384
  • [28] Efficient photocatalytic selective oxidation of benzyl alcohol by nano-Pd/ TiO2_ x with synergistic effect of oxygen vacancy and shell structure
    Duan, Xueyi
    Wang, Tinglan
    Sun, Kaiyi
    Fan, Guilan
    Li, Jingyi
    JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 979
  • [29] Synergistic effect of surface oxygen vacancies and interfacial charge transfer on Fe(III)/Bi2MoO6 for efficient photocatalysis
    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
  • [30] Polar solvent induced in-situ self-assembly and oxygen vacancies on Bi2MoO6 for enhanced photocatalytic degradation of tetracycline
    Liu, Fangyan
    Su, Dongyue
    Liu, Weizhen
    Liu, Baiquan
    Liu, Chuan
    Wang, Hong
    Wang, Mengye
    NANO RESEARCH, 2024, 17 (06) : 4951 - 4960
12345