Remarkable oxygen evolution by Co-doped ZnO nanorods and visible light
APPLIED CATALYSIS B-ENVIRONMENTAL(2021)
摘要
Oxygen evolution reaction (OER) by photocatalysis remains as a bottleneck for overall water splitting. Herein, we report a new use of conventional Co doped ZnO nanorods with a band gap of 1.77 eV as a noble-metal-free photocatalyst for OER under visible light illumination. A remarkable performance of ca. 191.8 mu mol/h is realized by 50 mg of the optimal Co doped ZnO photocatalyst and visible light illumination (>420 nm). The apparent quantum yields are ca. 22.8 % and 43.5 % at the wavelength of 420 nm and 380 nm, respectively. This research suggests the potential of this conventional material to hardness sunlight for efficient water splitting and other advanced photocatalytic applications.
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关键词
Co doped ZnO, Photocatalysis, Oxygen evolution reaction, Visible light
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