Strain-Engineering of Bi12O17Br2 Nanotubes for Boosting Photocatalytic CO2 Reduction

被引:101
|
作者
Di, Jun [1 ]
Song, Pin [1 ]
Zhu, Chao [1 ]
Chen, Chao [1 ]
Xiong, Jun [6 ]
Duan, Meilin [2 ,3 ]
Long, Ran [2 ,3 ]
Zhou, Weigiang [7 ]
Xu, Manzhang [1 ]
Kang, Lixing [1 ]
Lin, Bo [1 ]
Liu, Daobin [1 ]
Chen, Shuangming [2 ,3 ]
Liu, Chuntai [8 ]
Li, Huaming [6 ]
Zhao, Yanli [7 ]
Li, Shuzhou [1 ]
Yan, Qingyu [1 ]
Song, Li [2 ,3 ]
Liu, Zheng [1 ,4 ,5 ]
机构
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[2] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China
[3] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China
[4] CINTRA CNRS NTU THALES, UMI 3288, Res Techno Plaza, Singapore, Singapore
[5] Nanyang Environm & Water Res Inst, Environm Chem & Mat Ctr, Singapore, Singapore
[6] Jiangsu Univ, Inst Energy Res, Zhenjiang 212013, Jiangsu, Peoples R China
[7] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore
[8] Zhengzhou Univ, Key Lab Mat Proc & Mold, Minist Educ, Zhengzhou 450002, Peoples R China
来源
ACS MATERIALS LETTERS | 2020年 / 2卷 / 08期
关键词
HIGHLY EFFICIENT; ATOMICALLY THIN; CONVERSION;
D O I
10.1021/acsmaterialslett.0c00306
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of surface tensile strain on the photocatalysis is an open question. In this work, strain engineering has been demonstrated to promote the performance of photocatalysis by curved 2D materials into nanotubes. The surface atomic tensile strain in the Bi12O17Br2 nanotubes is evidenced by the complementary approaches of HAADF STEM imaging and XAFS, which reveals the refined local atomic arrangement of Bi atoms. The engineered surface atomic tensile strain is found to favors CO2 adsorption and activation, charge separation, and CO desorption, as well as lowers ratelimiting step energy barrier. Compared with the 2D Bi12O17Br2 nanoplates, the tensile strain tuned nanotubes shows 14.4 times increased CO2 photoreduction activity to produce CO, in which the generation rate of CO can arrive 34.5 mu mol g(-1) h(-1). This work offer insights into the relationship between surface tensile strain and CO2 photoreduction behavior at the atomic level and provides an accessible way for designing highefficiency photocatalysts.
引用
收藏
页码:1025 / 1032
页数:8
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