Heterogeneous Fenton-like reaction catalyst and preparation method and application thereof
A Fenton reaction, heterogeneous technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as low catalytic efficiency
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[0055] The embodiment of the present invention provides a method for preparing a heterogeneous Fenton-like reaction catalyst, comprising the following steps:
[0056] Step S1: Provide MXene solution, SiO 2 , basic salt, metal salt, aluminum source, and ZSM-5 molecular sieve synthesis agent;
[0057] Step S2: mixing the MXene solution, SiO 2 , and alkaline salt, stirred for 1 to 2 hours to obtain the first mixed solution, which contains MXene nanosheets and silica sol;
[0058] Step S3: adding the metal salt into the first mixed solution, stirring for 1-2 hours to obtain a second mixed solution, which contains M-MXene hydrosol;
[0059] Step S4: adding the aluminum source and the ZSM-5 molecular sieve synthetic agent into the second mixed solution to obtain a third mixed solution;
[0060] Step S5: placing the third mixed solution in a closed reaction kettle, and performing crystallization treatment to obtain the heterogeneous Fenton-like reaction catalyst (M-MXene / ZSM-5), w...
Embodiment 1
[0081] Mix 5mL of MXene solution (concentration: 10mg / mL), 1g of fumed silica, and 0.13g of sodium hydroxide, and stir for 1h to obtain the first pure black mixed solution;
[0082] Adding 0.25 g of cobalt nitrate to the first mixed solution, stirring for 1 h, to obtain a second mixed solution;
[0083] 1.11g of tetrapropylammonium bromide and 0.027g of sodium aluminate were added to the second mixed solution to obtain a third mixed solution;
[0084] The third mixed solution is placed in a reaction kettle, sealed and heated to 180°C, and crystallized for 72 hours; and
[0085]The crystallized product was sequentially washed, dried, and roasted to obtain the heterogeneous Fenton-like reaction catalyst (Co-MXene / ZSM-5) of Example 1. Wherein, the temperature of the drying treatment is 105° C., the temperature of the roasting treatment is 550° C., and the time is 3 hours.
[0086] Please refer to figure 2 , the SEM figure of the heterogeneous Fenton-like reaction catalyst of ...
Embodiment 2
[0089] Mix 5mL of MXene solution (concentration: 10mg / mL), 1g of fumed silica, and 0.13g of sodium hydroxide, and stir for 1h to obtain the first pure black mixed solution;
[0090] Adding 0.25 g of ferric sulfate to the first mixed solution, stirring for 1 h, to obtain a second mixed solution;
[0091] 1.11g of tetrapropylammonium bromide and 0.027g of sodium aluminate were added to the second mixed solution to obtain a third mixed solution;
[0092] The third mixed solution is placed in a reaction kettle, sealed and heated to 180°C, and crystallized for 72 hours; and
[0093] The crystallized product was successively washed, dried, and roasted to obtain the heterogeneous Fenton-like reaction catalyst (Fe-MXene / ZSM-5) of Example 2. Wherein, the temperature of the drying treatment is 105° C., the temperature of the roasting treatment is 550° C., and the time is 3 hours.
[0094] Please refer to image 3 , the SEM figure of the heterogeneous Fenton-like reaction catalyst of ...
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