Cobaltous oxide photocatalytic material with high photoelectrocatalytic activity and preparation method thereof
A cobalt oxide photoelectric and photoelectric catalysis technology, applied in cobalt oxide/cobalt hydroxide, chemical instruments and methods, physical/chemical process catalysts, etc. problem, to achieve the effect of improving the photocatalytic reaction activity, saving production cost and low cost
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[0029] The present embodiment provides a method for preparing cobaltous oxide photocatalytic material having high photo catalytic activity, comprising the steps of:
[0030] (1) the cobalt oxalate was dissolved in 0.7322g 42.5mL of deionized water to obtain an aqueous solution of cobalt oxalate, 7.5mL was added dropwise at 80 ℃ water bath concentration of 5mol / L sodium hydroxide aqueous solution, to maintain the water bath at 80 deg.] C for 10 minutes to precursor body;
[0031] (2) the precursor into a microwave digestion tank, hydrothermal microwave for 20 minutes at 200 ℃, intermediate to obtain a suspension;
[0032] (3) separating the resulting suspension, respectively, with deionized water, washed with ethanol several times, and dried under vacuum to give a solid powder.
[0033] (4) The solid was transferred to a powder under nitrogen, and heated at 900 deg.] C to give the final product cobaltous oxide nanopowder (e.g. figure 2 Shown), the size distribution of the powder ...
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