Component and manufacture of a photo-catalyst
AssigneeChina Textile Institute
InventorsLien-Hua Chiu, Wen-Tung Chen, Jan-An Guu, Jeffrey Chi-Sheng Wu, I-Hsiang Tseng, Chih-Hsien Chen
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Abstract
A method of manufacturing a photo-catalyst including titanium dioxide and silicon dioxide is provided, wherein titanium dioxide is synthesized by a collosol gelatinization utilizing the water generated by the esterification of acid and alcohol to conduct a reaction of hydrolysis condensation. The silicon dioxide is synthesized by a collosol gelatinization by adding Si(OC2H5)4, n-C4H9OH and water or Si(OC2H5)4, (CH3)Si(OC2H5)3 and water.
Claims3
A manufacturing method of a photo-catalyst, comprising the steps of:
- (a) manufacturing titanium collosol in a glove box by sequentially adding tetra butyl alcohol, titanium oxide, n-C4H9OH and acetic acid at a mole ratio of 1:4:4, and agitating for four to eight hours;
- (b) forming silicon collosol in the glove box by adding Si(OC2H5)4, n-C4H9OH and water at a mole ratio of 1:4:4, and agitating for twelve to twenty-four hours;
- (c) pouring the silicon collosol into the titanium collosol to be mixed and agitated for two to four hours;
- (d) forging the mixture of step (c) at high temperature in an oven, the oven's temperature being raised to 150° C. at a rate of 1° C. per minute and maintained thereat for three to five hours, the temperature then being raised to 500° C. at a rate of 3° C. per minute and maintained thereat for one to two hours;
- and,
- (e) grinding the forged mixture to obtain a powder of the photo-catalyst.
A manufacturing method of a photo-catalyst, comprising the steps of:
- (a) manufacturing titanium collosol in a glove box by sequentially adding tetra butyl alcohol, titanium oxide, n-C4H9OH and acetic acid at a mole ratio of 1:4:4, and agitating for four to eight;
- (b) forming silicon collosol in the glove box by adding Si(OC2H5)4, (CH3)Si(OC2H5)3 and water at a mole ratio of 9:
- 1:40, and agitating for twelve to twenty-four hours;
- (c) pouring the silicon collosol into the titanium collosol and agitating for two to four hours;
- (d) forging a product of step (c) in a crucible at high temperature in an oven, the oven's temperature being raised to 150° C. at a rate of 1° C. per minute and maintained thereat for three to five hours, the temperature then being raised to 500° C. at a rate of 3° C. per minute and maintained thereat for one to two hours;
- and,
- (e) grinding the forged product to obtain a powder of the photo-catalyst.
Dependencies are inferred from the claim text.