Preparation method of graphene oxide modified shape-selective catalyst with microporous molecular sieves
A microporous molecular sieve and graphene modification technology, which is applied in molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of high cost, low catalytic efficiency, cumbersome preparation and operation of shape-selective catalysts, etc.
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Examples
Embodiment 1
[0031] Add 2g of microporous molecular sieve MCM-22 into 40mL deionized water, and disperse ultrasonically at room temperature for 30min; add 0.2g graphene oxide into 10mL deionized water, and disperse ultrasonically at room temperature for 30min; Add it to the dispersion of microporous molecular sieves, and then ultrasonically treat it for 30 minutes after the addition is complete; filter the mixture obtained in the above process, dry the filter cake at 80°C for 12h, then raise the temperature to 120°C, and keep it at this temperature for 2h, Then the temperature is lowered to room temperature, and the desired graphene oxide modified microporous molecular sieve shape-selective catalyst is obtained, which is denoted as Cat1.
Embodiment 2
[0033] Add 2g of microporous molecular sieve MCM-22 into 60mL of deionized water, and disperse by ultrasonic at room temperature for 30min; add 0.2g of graphene oxide into 14mL of deionized water, and disperse by ultrasonic at room temperature for 30min; Add it to the dispersion of microporous molecular sieves, and then ultrasonically treat it for 30 minutes after the addition is complete; filter the mixture obtained in the above process, dry the filter cake at 80°C for 12h, then raise the temperature to 120°C, and keep it at this temperature for 2h, Then the temperature is lowered to room temperature, and the desired graphene oxide modified microporous molecular sieve shape-selective catalyst is obtained, which is denoted as Cat2.
Embodiment 3
[0035] Add 2g of microporous molecular sieve MCM-22 into 100mL of deionized water, and disperse by ultrasonic at room temperature for 30min; add 0.3g of graphene oxide into 30mL of deionized water, and disperse by ultrasonic at room temperature for 30min; Add it to the dispersion of microporous molecular sieves, and then ultrasonically treat it for 30 minutes after the addition is complete; filter the mixture obtained in the above process, dry the filter cake at 80°C for 12h, then raise the temperature to 120°C, and keep it at this temperature for 2h, Then the temperature is lowered to room temperature, and the desired graphene oxide modified microporous molecular sieve shape-selective catalyst is obtained, which is denoted as Cat3.
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Description
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Application Information
- IPC
- B01J29/70; B01J29/40; C07C6/12; C07C15/08
- CPC
- B01J29/40; B01J29/7038; C07C6/123; C07C15/08; Y02P20/52
- Inventors
- 柳娜; 王军