Preparation method and application of H2O2-modified TiO2/mesoporous glass catalyst
A mesoporous glass, H2O2 technology, applied in physical/chemical process catalysts, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of reduced specific surface area, small particle size, small reaction contact area, etc., to improve reaction contact Area and light absorption capacity, reducing post-processing steps, and solving the effect of low mass transfer efficiency
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[0039] Example 1
[0040] 5 g of glass microspheres and 200 ml of deionized water were placed in a high-temperature high pressure reactor, raised to 12.5 MPa, and the temperature was 325 ° C, and the temperature of the subcritical state was 2 h, and after the temperature of the reactor fell to room temperature, passed Filtering The etching glass microspheres were separated from water, and washed several times to pH = 7 with deionized water.
[0041] 0.15 ml of tetrabutyate was added to a mixed solution of 13 ml of hydrogen peroxide with 20 ml of isopropyl alcohol to give a yellow transparent solution to add 0.03 g of hexadalkyl bromide and 0.65 g of mesoporous glass carrier, ultrasonic dispersion uniform After the mixture of 5 ml of deionized water and 10 ml of isopropanol was added dropwise, the resulting mixture was transferred to a stainless steel autoclave in a stainless steel autoclave, and the product was centrifuged at 140 ° C for 4 h, and the product was centrifuged, washe...
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[0042] Example 2
[0043] Preparation of H according to the method of Example 1 2 O 2 Modified TIO 2 / Menders glass photocatalytic oxidation-adsorption dethyl concentrated catalyst, in place, the titanate titanate is 0.31 mL, and the obtained catalyst has a titanium dioxide load of 10% by weight.
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[0044] Example 3
[0045] Preparation of H according to the method of Example 1 2 O 2 Modified TIO 2 / Menders glass photocatalytic oxidation-adsorption dethyl concentration catalyst, the amount of titanate is 0.49 ml, and the obtained catalyst has a titanium dioxide load of 15% by weight.
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