Ozonization water treatment method by taking copper/silver composite material as catalyst
A composite material and ozonated water technology, which is applied in the field of environmental catalysis and water treatment, can solve the problems of easy residual metal ions, and the catalyst cannot be used repeatedly, and achieves the effects of good stability, good catalytic activity and low energy consumption.
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Embodiment 1
[0020] Add 30ml of ethylene glycol to 10mmol CuSO 4 ·5H 2 In a container of O, dissolve under magnetic stirring, then add 20mL of water to the above solution, continue to stir for 10min, then transfer to a 250mL flask, slowly raise the temperature to 80°C, and add 0.2 mol / L NaCO 3 100 mL of the solution was stirred for 1 hour and allowed to stand for 1 hour, washed with water and ethanol in sequence, and dried overnight at 100°C. The obtained solid powder was a copper precursor. Accurately weigh 0.4g of the copper precursor in a 50mL beaker, add 30ml of ethylene glycol and 1mL of 37% formaldehyde under magnetic stirring, transfer it to a 50mL reactor after stirring for 10min, and react hydrothermally at 200°C for 6h, naturally After cooling to room temperature, transfer to a beaker to wash with ethanol, dry at 80°C overnight, and the solid powder obtained after grinding is the Cu-HCHO composite material. Its SEM photo see figure 1 In (a), see the XRD pattern figure 2 Mid...
Embodiment 2
[0022] Add 30ml of ethylene glycol to 10mmol CuSO 4 ·5H 2 In a container of O, dissolve under magnetic stirring, then add 20mL of water to the above solution, continue to stir for 10min, then transfer to a 250mL flask, slowly raise the temperature to 80°C, and add 0.2 mol / L NaCO 3 100 mL of the solution was stirred for 1 hour and allowed to stand for 1 hour, washed with water and ethanol in sequence, and dried overnight at 100°C. The obtained solid powder was a copper precursor. Accurately weigh 0.4g of the copper precursor into a 50mL beaker, add 30ml of ethylene glycol and 0.2g of silver nitrate under magnetic stirring, transfer it to a 50mL reaction kettle after stirring for 10min, and conduct a hydrothermal reaction at 200°C for 6h, then cool naturally After reaching room temperature, transfer to a beaker to wash with ethanol, dry at 80°C overnight, and the solid powder obtained after grinding is the Cu-Ag composite material. Its SEM photo see figure 1 In (b), see the ...
Embodiment 3
[0024] Add 30ml of ethylene glycol to 10mmol CuSO 4 ·5H 2 In a container of O, dissolve under magnetic stirring, then add 20mL of water to the above solution, continue stirring for 10min, then transfer to a 250mL flask, slowly raise the temperature to 80°C, and add 0.2 mol / L NaCO 3 100 mL of the solution was stirred for 1 hour and allowed to stand for 1 hour, washed with water and ethanol in sequence, and dried overnight at 100°C. The obtained solid powder was a copper precursor. Accurately weigh 0.4g of the copper precursor into a 50mL beaker, add 30ml of ethylene glycol, 1mL of 37% formaldehyde, and 0.2g of silver nitrate under magnetic stirring, and continue stirring for 10min. After thermal reaction for 6 hours, cool to room temperature naturally, transfer to a beaker to wash with ethanol, dry at 80°C overnight, and the solid powder obtained after grinding is the Cu-Ag-HCHO composite material. Its SEM photo see figure 1 Middle (c), XRD pattern see figure 2 Middle (c)...
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