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yellow product was filtered and washed with H O and CH OH for
several times, and eventually dried in a vacuum overnight.
2
3
Conflict of Interest
Photoelectrochemical Measurements: Photocurrent measure-
The authors declare no conflict of interest.
ments were performed on a CHI 760E electrochemical work station
(
Chenhua Instrument, Shanghai, China) in a standard three-elec-
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as the working electrode, Pt plate as the counter electrode, and
an Ag/AgCl as a reference electrode. A 0.1 m Na SO and 0.1 m
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Acknowledgements
This work was supported by the NSFC (Grant Nos. 21673213,
21371162, and 21521001), the 973 program (Grant
No. 2014CB931803), the Recruitment Program of Global Youth
Experts, and the Fundamental Research Funds for the Central
Universities (Grant No. WK2060190065).
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