Journal
ELECTROCHEMISTRY
Volume 79, Issue 10, Pages 842-844Publisher
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.79.842
Keywords
Photocatalysts; Visible-Light; Metal Ion Doping; Grafting
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Funding
- New Energy and Industrial Technology Development Organization (NEDO) in Japan
- Japan Society for the Promotion of Science (JSPS)
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Metal ions doping into ZnO formed different energy states such as shallow, middle, or deep impurity states between the band gap and these states induce the visible-light absorption. MxZn1-xO without co-catalyst showed negligible visible-light activity. Surprisingly, Cu2+-modification induced visible-light activity over MxZn1-xO and they became an active visible-light photocatalyst. Experimental results conclude that visible-light-activities strongly depend on their reduction potentials of dopants' impurity states.
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