Construction of adjustable dominant {314} facet of Bi5O7I and facet-oxygen vacancy coupling dependent adsorption and photocatalytic activity

被引：42
作者：
Li, Qi [1 ,2 ]
Li, Yi -lei [1 ,3 ]
Li, Bo [1 ]
Hao, Ying-juan [1 ]
Wang, Xiao-jing [1 ]
Liu, Rui-hong [1 ]
Ling, Yuan [1 ]
Liu, Xinying [4 ]
Li, Fa-tang [1 ,2 ,5 ]
机构：
[1] Hebei Univ Sci & Technol, Coll Sci, Shijiazhuang 050018, Hebei, Peoples R China
[2] Hebei Univ Sci & Technol, Int Joint Lab New Energy, Shijiazhuang 050018, Hebei, Peoples R China
[3] Beijing Normal Univ, Minist Educ, Coll Chem, Key Lab Theoret & Computat Photochem, Beijing 100875, Peoples R China
[4] Univ South Africa UNISA, Inst Dev Energy African Sustainabil IDEAS, ZA-1710 Florida, South Africa
[5] Yanshan Univ, Sch Environm & Chem Engn, Qinhuangdao 066004, Hebei, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2021年 / 289卷
基金：
中国国家自然科学基金;
关键词：
Photocatalysis; Bi5O7I; Self-combustion of ionic liquid; Facet heterojunction; Oxygen vacancy; ANATASE TIO2; TEMPERATURE SYNTHESIS; CHARGE SEPARATION; LIGHT; NANOSHEETS; HETEROJUNCTION; OXIDATION; DEGRADATION; BIOBR; DEHYDROGENATION;
D O I：
10.1016/j.apcatb.2021.120041
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：
In layered Bi-O-X materials, {001} and {110} facets are regarded to be highly active. However, dominant facets in bismuth-rich materials are rarely studied so far. In this paper, the role of main {314} facet of Bi5O7I is investigated for the first time. Bi5O7I samples with adjustable {314} and {008} facet ratios are synthesized using ionic liquid self-combustion method. The inducing growth role of tetramethylammonium iodide for {314} main facet is revealed. Photocatalytic experiments indicate that the activity of Bi5O7I material with {314}/{008} facet ratio of 4.32 are lower than those of Bi5O7I with facet ratio of 5.23 and 4.56, implying the increase of {008} facet proportion could not effectively improve the redox performance. Meanwhile, the controllable oxygen vacancy concentration can be realized by constructing reduction atmosphere. Photoelectrochemical test results show that the synergistic effect of facet ratio and the oxygen vacancies lead to the improvement of charge carriers.
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页数：11
相关论文
共 60 条
[1]   Photocatalytic CO2 Reduction to C2+Products [J].
Albero, Josep ;
Peng, Yong ;
Garcia, Hermenegildo .
ACS CATALYSIS, 2020, 10 (10) :5734-5749
[2]   Enhanced oxidation ability of g-C3N4 photocatalyst via C60 modification [J].
Bai, Xiaojuan ;
Wang, Li ;
Wang, Yajun ;
Yao, Wenqing ;
Zhu, Yongfa .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 152 :262-270
[3]   Facet-Dependent Photocatalytic N2 Fixation of Bismuth-Rich Bi5O7I Nanosheets [J].
Bai, Yang ;
Ye, Liqun ;
Chen, Ting ;
Wang, Li ;
Shi, Xian ;
Zhang, Xu ;
Chen, Dan .
ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (41) :27661-27668
[4]   Bismuth-rich Bi4O5X2 (X = Br, and I) nanosheets with dominant {101} facets exposure for photocatalytic H2 evolution [J].
Bai, Yang ;
Chen, Ting ;
Wang, Pingquan ;
Wang, Li ;
Ye, Liqun .
CHEMICAL ENGINEERING JOURNAL, 2016, 304 :454-460
[5]   Active site density and reactivity for the photocatalytic dehydrogenation of 2-propanol an TiO2 (110) [J].
Brinkley, D ;
Engel, T .
SURFACE SCIENCE, 1998, 415 (03) :L1001-L1006
[6]  
[蔡惊涛 Cai Jingtao], 2019, [化工学报, CIESC Journal], V70, P128
[7]   Macroscopic Spontaneous Polarization and Surface Oxygen Vacancies Collaboratively Boosting CO2 Photoreduction on BiOIO3 Single Crystals [J].
Chen, Fang ;
Ma, Zhaoyu ;
Ye, Liqun ;
Ma, Tianyi ;
Zhang, Tierui ;
Zhang, Yihe ;
Huang, Hongwei .
ADVANCED MATERIALS, 2020, 32 (11)
[8]   Visible-light photocatalytic degradation of multiple antibiotics by AgI nanoparticle-sensitized Bi5O7I microspheres: Enhanced interfacial charge transfer based on Z-scheme heterojunctions [J].
Chen, Fei ;
Yang, Qi ;
Yao, Fubing ;
Wang, Shana ;
Sun, Jian ;
An, Hongxue ;
Yi, Kaixin ;
Wang, Yali ;
Zhou, Yaoyu ;
Wang, Longlu ;
Li, Xiaoming ;
Wang, Dongbo ;
Zeng, Guangming .
JOURNAL OF CATALYSIS, 2017, 352 :160-170
[9]   Bi metal prevents the deactivation of oxygen vacancies in Bi2O2CO3 for stable and efficient photocatalytic NO abatement [J].
Chen, Peng ;
Liu, Hongjing ;
Sun, Yanjuan ;
Li, Jieyuan ;
Cui, Wen ;
Wang, Li'ao ;
Zhang, Wendong ;
Yuan, Xiaoya ;
Wang, Zhiming ;
Zhang, Yuxin ;
Dong, Fan .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2020, 264
[10]   Three-dimensional Ag2O/Bi5O7I p-n heterojunction photocatalyst harnessing UV-vis-NIR broad spectrum for photodegradation of organic pollutants [J].
Chen, Yannan ;
Zhu, Gangqiang ;
Hojamberdiev, Mirabbos ;
Gao, Jianzhi ;
Zhu, Runliang ;
Wang, Chenghui ;
Wei, Xiumei ;
Liu, Peng .
JOURNAL OF HAZARDOUS MATERIALS, 2018, 344 :42-54
123456