期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 122, 期 46, 页码 26570-26575出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.8b09361
关键词
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资金
- National Key Research and Development Program of China [2016YFA0300803, 2017YFA0206304]
- National Natural Science Foundation of China [61474061, 61674079]
- Jiangsu Shuangchuang Program
- Natural Science Foundation of Jiangsu Province of China [BK20140054]
To develop MoSe2-based photocatalysts, increasing the catalytic activity of 2H-MoSe2 is essential. In this work, the electronic and photocatalytic properties of 3d transition metal-doped (Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) 2H-MoSe2 were investigated by first-principles calculations. The results indicate that Sc, Ti, V, Cr, Mn, Fe, and Co atoms tend to substitute the Mo atoms under a Se-rich condition, whereas Ni, Cu, and Zn atoms prefer to occupy the interstitial positions. More importantly, Sc- and Ti-doped 2H-MoSe2 can enhance the photocatalytic activity by increasing the oxidizability of photogenerated holes, suppressing the recombination of photogenerated carriers, and increasing the number of catalytic active sites.
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