Photoactivation preparation method for nano-AgCl/Ag visible-light catalyst
A catalyst, visible light technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of difficult to achieve multiple recycling of catalysts, low effective utilization of solar energy, and easy damage to operators. problem, to achieve good application prospects, simple method, short time effect
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[0034] Example 1:
[0035] (1) Measure about 60 mL of ethylene glycol, add 0.41 g of polyvinylpyrrolidone, heat the solution to about 25°C in a constant temperature water bath and dissolve the polyvinylpyrrolidone completely under stirring;
[0036] (2) Add 0.348g of sodium chloride to the above solution and dissolve the sodium chloride completely under stirring;
[0037] (3) Dissolve 0.428 g of silver nitrate in about 5 mL of ethylene glycol solution;
[0038] (4) Add the ethylene glycol solution obtained in step (3) dropwise to the solution obtained in step (2), and allow the reaction to continue at 25°C for 30 minutes to obtain spherical AgCl nanoparticles;
[0039] (5) Place the prepared AgCl nanoparticles together with the mother liquor under a 25W Philips cold light source fluorescent lamp and irradiate it for about 30 minutes while stirring. It can be seen that the milky white suspension gradually turns into a blue-violet suspension;
[0040] (6) Centrifuge the blue-violet suspens...
Example Embodiment
[0044] Example 2:
[0045] (1) Measure about 60 mL of ethylene glycol, add 0.28 g of polyvinylpyrrolidone, heat the solution to about 50°C in a constant temperature water bath and dissolve the polyvinylpyrrolidone completely under stirring;
[0046] (2) Add 0.226g of sodium chloride to the above solution and dissolve the sodium chloride completely under stirring;
[0047] (3) Dissolve 0.286 g of silver nitrate in about 5 mL of ethylene glycol solution;
[0048] (4) Add the ethylene glycol solution obtained in step (3) dropwise to the solution obtained in step (2), and allow the reaction to continue at 50° C. for 20 minutes to obtain spherical AgCl nanoparticles;
[0049] (5) Place the prepared AgCl nanoparticles together with the mother liquor under a 25W Philips cold light source fluorescent lamp and irradiate it for about 20 minutes while stirring. It can be seen that the milky white suspension gradually turns into a blue-purple suspension;
[0050] (6) Centrifuge the blue-violet suspe...
Example Embodiment
[0052] Example 3:
[0053] (1) Measure about 60 mL of ethylene glycol, add 0.14 g of polyvinylpyrrolidone, heat the solution to about 80°C in a constant temperature water bath and dissolve the polyvinylpyrrolidone completely under stirring;
[0054] (2) Add 0.113g of sodium chloride to the above solution and dissolve the sodium chloride completely under stirring;
[0055] (3) Dissolve 0.143 g of silver nitrate in about 5 mL of ethylene glycol solution;
[0056] (4) Add dropwise the ethylene glycol solution obtained in step (3) to the solution obtained in step (2), and allow the reaction to continue at 80° C. for 10 minutes to obtain spherical AgCl nanoparticles;
[0057] (5) Centrifugally separate the prepared AgCl nanoparticles from the mother liquor at 10,000 rpm and then disperse them into 50 mL of deionized water;
[0058] (6) The solution obtained in step (5) is irradiated under a 25W Philips cold light source fluorescent lamp while stirring for about 10 minutes. It can be seen that...
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