Method for producing photocatalyst
AssigneeNational Central University
InventorsYueh-Fang Chen, Hsin-Yu Lin, Yu-Wen Chen
Life of this patent
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Abstract
A method for preparing for a photocatalyst. The method comprises steps of providing a mixture of indium oxide and vanadium oxide and then calcining the mixture to obtain a indium vanadium quadrioxide. Further, a nickel nitrate solution is added to the indium vanadium quadrioxide to form a catalyst with a nickel oxide supported amount of about 0.1-2.0 wt. % and a post treatment is performed on the catalyst. In the post treatment, a reduction process is performed and then an oxidation process is performed.
Claims16
A method for preparing a photocatalyst, comprising:
- providing a mixture of indium oxide and vanadium oxide;
- calcining the mixture to obtain an indium vanadium quadrioxide;
- adding a nickel nitrate solution to the indium vanadium quadrioxide to form a catalyst with a nickel oxide supported amount of about 0.1-2.0 wt. %;
- and
- performing a post treatment on the catalyst, wherein a reduction process is performed as said post treatment and then an oxidation process is performed.
A method of producing hydrogen and oxygen, comprising:
- forming a photocatalyst, wherein the photocatalyst is formed by:
- providing a mixture of indium oxide and vanadium oxide;
- calcining the mixture for about 12-24 hours at 900-1200 centigrade to obtain an indium vanadium quadrioxide;
- adding a nickel nitrate solution to the indium vanadium oxide to form the photocatalyst with an amount of nickel oxide cocatalyst of about 0.1-2.0 wt. %;
- and
- performing a post treatment on the photocatalyst, wherein a reduction process is performed for 2-10 hours by using hydrogen at 400-650 centigrade and then an oxidation process is performed as said post treatment;
- adding the photocatalyst into water;
- and
- using said photocatalyst to catalyze a water splitting reaction by light to produce hydrogen and oxygen.
Dependencies are inferred from the claim text.