Journal of Materials Chemistry A
Paper
solvothermal method using various alcohols as solvents. SrTiO3 14 F. Raziq, L. Q. Sun, Y. Y. Wang, X. L. Zhang, M. Humayun,
with the dominant {110} exposed facet presented a 6.8 fold
faster HCHO photocatalytic degradation rate than that of the
S. Ali, L. L. Bai, Y. Qu, H. T. Yu and L. Q. Jing, Adv. Energy
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pure {001} facet exposed one. It was found that the much 15 S. Y. Chen, R. Yan, X. L. Zhang, K. Hu, Z. J. Li, M. Humayun,
enhanced photocatalytic activity of the {110} facet exposed Y. Qu and L. Q. Jing, Appl. Catal., B, 2017, 209, 320–328.
sample has mainly resulted from the boosting of the activation 16 F. Raziq, Y. Qu, M. Humayun, A. Zada, H. T. Yu and
of molecular oxygen into O2cꢀactive species, in addition to the
L. Q. Jing, Appl. Catal., B, 2017, 201, 486–494.
much improved separation ability of photogenerated hole– 17 G. G. Liu, G. X. Zhao, W. Zhou, Y. Y. Liu, H. Pang,
electron pairs. Combining with various characterizations, the
H. B. Zhang, D. Hao, X. G. Meng, P. Li, T. Kako and
DFT calculation results further conrmed that the new induc-
J. H. Ye, Adv. Funct. Mater., 2016, 26, 6822–6829.
tion of O2cꢀactive species in the {110} facet exposed SrTiO3 18 Y. P. Xie, Y. Q. Yang, G. S. Wang and G. Liu, J. Colloid
sample was owing to the relatively higher CB position and lower
Interface Sci., 2017, 503, 198–204.
adsorption energy between the crystal surface and O2 molecules 19 Z. Wan, G. K. Zhang, X. Y. Wu and S. Yin, Appl. Catal., B,
as well as favorable charge accumulation on O2 molecules as
compared to the {001} facet exposed one.
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21 A. Helal, F. A. Harraz, A. A. Ismail, T. M. Sami and
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24 L. L. Wang, J. Ge, A. L. Wang, M. S. Deng, X. J. Wang, S. Bai,
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Conflicts of interest
There are no conicts to declare
Acknowledgements
This work was supported by the National Natural Science
Foundation of China (NSFC No. 51472194 and No. 51602237),
the National Basic Research Program of China (973 Program
No. 2013CB632402) and the Fundamental Research Funds for
the Central Universities (WUT:2017 IVA 039).
26 M. Chen, J. Z. Ma, B. Zhang, F. Wang, Y. B. Li, C. B. Zhang
and H. He, Appl. Catal., B, 2017, DOI: 10.1016/
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