Nano-composite catalyst TiO2-gamma-AlOOH and preparation method as well as application thereof
A nano-composite and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of low utilization of sunlight, toxic intermediate products, slow degradation rate, etc., and achieve simple operation. , low cost, the effect of reducing the processing cost
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Embodiment 1
[0031] A nanocomposite catalyst TiO 2 -γ-AlOOH, that is, using γ-AlOOH as a carrier to support TiO 2 The nanocomposite catalyst made of TiO 2 The loading amount is according to its mass ratio relative to the γ-AlOOH carrier, that is, TiO 2 : γ-AlOOH carrier is 10:100.
[0032] Above-mentioned a kind of nanocomposite catalyst TiO 2 - the preparation method of γ-AlOOH, its preparation process is as figure 1 As shown, first add commercial titanium dioxide, that is, P25, into absolute ethanol, stir and mix evenly to obtain a mixed solution a, add aluminum sec-butoxide to the mixed solution a, heat and stir, and add a small amount of deionized water to form a gel that is mixed Liquid b, the obtained mixed liquid b is aged to obtain mixed liquid c, the obtained mixed liquid C is subjected to suction filtration, and the filter cake obtained is washed with acetone to obtain TiO 2 / AlOOH, further drying to obtain the nanocomposite catalyst TiO 2 -γ-AlOOH, specifically comprising ...
Embodiment 2
[0038] A nanocomposite catalyst TiO 2 -γ-AlOOH, that is, using γ-AlOOH as a carrier to support TiO 2 The nanocomposite catalyst made of TiO 2 The loading amount is according to its mass ratio relative to the γ-AlOOH carrier, that is, TiO 2 : γ-AlOOH carrier is 30:100.
[0039] Above-mentioned a kind of nanocomposite catalyst TiO 2 -The preparation method of γ-AlOOH specifically comprises the following steps:
[0040] (1) Weigh 0.6g of P25 and add it into 8g of absolute ethanol, stir and mix evenly to obtain the mixture a;
[0041] (2) Weigh 5.65g of aluminum sec-butoxide and add it to the mixture a prepared in step (1), heat to 150°C and stir for 3 hours, add 2.5ml of deionized water to obtain the gel mixture b;
[0042] (3), age the gel mixture b obtained in step (2) for 3 hours, filter with suction, and rinse the obtained filter cake with acetone 5 times to obtain TiO 2 / AlOOH;
[0043] (4), finally the TiO obtained in step (3) 2 / AlOOH is placed in a blast drying ov...
Embodiment 3
[0045] A nanocomposite catalyst TiO 2 -γ-AlOOH, that is, using γ-AlOOH as a carrier to support TiO 2 The nanocomposite catalyst made of TiO 2 The loading amount is according to its mass ratio relative to the γ-AlOOH carrier, that is, TiO 2 : γ-AlOOH carrier is 40:100.
[0046] Above-mentioned a kind of nanocomposite catalyst TiO 2 -The preparation method of γ-AlOOH specifically comprises the following steps:
[0047] (1) Add 0.35g of P25 into 3.6g of absolute ethanol, stir and mix evenly to obtain a mixture a;
[0048] (2) Add 2.126g of aluminum sec-butoxide to the mixture a obtained in step (1), heat to 160°C and stir for 2 hours, then add 1.3ml of deionized water to obtain the gel mixture b;
[0049] (3), aging the gel mixture b obtained in step (2) for 3 hours, suction filtering, and rinsing the obtained filter cake with acetone 5 times to obtain TiO 2 / AlOOH ;
[0050] (4), finally the TiO obtained in step (3) 2 / AlOOH is placed in a blast drying oven at a cont...
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