Millimeter-scale peroxymonosulfate activator ZSM-5-(C@Fe) and preparation method and application thereof
A technology of ZSM-5-COOH and ZSM-5-, which is applied in the field of preparation of millimeter-scale monopersulfate activator ZSM-5- and degradation of emerging pollutants, can solve catalyst waste, easy loss, and restrict catalyst circulation Usage and other issues
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Embodiment 1
[0042] This example investigates that the prepared ZSM-5-(C@Fe) has a good ability to degrade emerging pollutants.
[0043] (1) Preparation of ZSM-5-(C@Fe): 10g ZSM-5, 150mmol 3-aminopropyltriethoxysilane and 150mmol maleic anhydride were uniformly dispersed in 100mL N,N-dimethylformaldehyde amide, stirred at room temperature for 24 h; then the particle sample was washed with methanol and dried at 50 °C for 12 h to obtain the precursor ZSM-5-COOH. Take terephthalic acid (1.065g) and FeCl respectively 2 4H 2 O (2.65g) was placed in a 500ml three-necked flask, and 250ml of N,N-dimethylformamide was added to dissolve it, then 30ml of methanol was added, and 8ml of hydrofluoric acid was added dropwise to make the solution light green, and then heated to 140℃, reacted for 24h, and obtained ferrous MOFs precursor (Fe(II)-MOF-74). 10 g of ZSM-5-COOH and 50 mmol of ethylene glycol dimethacrylate were dispersed in 100 mL of acetonitrile to obtain a mixed solution. Then 1 g of Fe(II...
Embodiment 2
[0055] This example compares the effect of the dosage of ZSM-5-(C@Fe) on the degradation of ciprofloxacin by catalytic activation.
[0056] (1) The preparation method of ZSM-5-(C@Fe) is the same as step (1) in Example 1;
[0057] (2) Prepare 0.036mmol L -1 The ciprofloxacin solution is standby;
[0058] (3) Adopt conical flask as reactor, add 0.036mmol PMS and concentration be 0.036mmolL in reactor 1 -1 Ciprofloxacin solution was 100mL, and 0.1g ZSM-5-(C@Fe) was added to the reactor at the same time. sampling analysis;
[0059] (4) The addition amount of ZSM-5-(C@Fe) in reactor 2 becomes 0.2g, and other conditions are the same as (3);
[0060] (5) The addition amount of ZSM-5-(C@Fe) in reactor 3 becomes 0.3g, and other conditions are the same as (3);
[0061] (6) The addition amount of ZSM-5-(C@Fe) in reactor 4 becomes 0.4g, and other conditions are the same as (3);
[0062] (7) The addition amount of ZSM-5-(C@Fe) in the reactor 5 becomes 0.5g, and other conditions are t...
Embodiment 3
[0069] This example compares the influence of different molar ratios of PMS and ciprofloxacin on the catalytic activation reaction of ZSM-5-(C@Fe).
[0070] (1) The preparation method of ZSM-5-(C@Fe) is the same as step (1) in Example 1;
[0071] (2) Prepare 0.036mmol L -1 The ciprofloxacin solution is standby;
[0072] (3) Adopt conical flask as reactor, add 0.036mmol PMS and concentration be 0.036mmolL in reactor 1 -1 Ciprofloxacin solution was 100mL, and 0.4g ZSM-5-(C@Fe) was added to the reactor at the same time. sampling analysis;
[0073] (4) the add-on of PMS in the reactor 2 becomes 0.072mmol, and other conditions are the same as (3);
[0074] (5) the add-on of PMS in the reactor 3 becomes 0.108mmol, and other conditions are the same as (3);
[0075] (6) the add-on of PMS in the reactor 4 becomes 0.144mmol, and other conditions are the same as (3);
[0076] (7) the add-on of PMS in the reactor 5 becomes 0.180mmol, and other conditions are the same as (3);
[007...
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