Method for catalytic removal of antibiotic by silver phosphate/bismuth sulfide/bismuth oxide double-Z-type photocatalyst
A technology of photocatalyst and bismuth oxide, which is applied in physical/chemical process catalysts, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of fast photogenerated electron-hole recombination, low light utilization efficiency, photocatalytic Poor performance and other problems, to achieve efficient degradation effect
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Embodiment 1
[0045] A method for using silver phosphate silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst to catalyze the removal of antibiotics, specifically using silver phosphate silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst to catalyze the removal of sulfonamide in water pyrimidine, comprising the steps of:
[0046] Take silver phosphate / bismuth sulfide / bismuth oxide double Z photocatalyst (ABB-1, ABB-2, ABB-3, ABB-4), bismuth oxide (BO), bismuth sulfide (BS) and silver phosphate (AP), Take 100 mg each, add them to 100 mL of sulfamethazine (SAZ) solution with a concentration of 10 mg / L, mix well, and adsorb sulfamethazine at 30 °C and 600 rpm, and reach the adsorption after 30 min. Equilibrium; the mixed solution that reached adsorption equilibrium was placed under a xenon lamp (λ > 420 nm, power 50 W), and the photocatalytic reaction was carried out at 30 °C and 600 rpm for 90 min to complete the treatment of SAZ.
[0047] The sul...
Embodiment 2
[0074] A method of using silver phosphate silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst to catalyze the removal of antibiotics, specifically using silver phosphate silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst to catalyze the removal of chlorine in water Xacillin sodium, comprising the following steps:
[0075]Take the silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst (ABB-1, ABB-2, ABB-3, ABB-4) prepared in Example 1, bismuth oxide (BO), bismuth sulfide (BS) and silver phosphate (AP), 100 mg each, were added to 100 mL of cloxacillin sodium (CLX) solution with a concentration of 10 mg / L, mixed evenly, and the cloxacillin Sodium was adsorbed, and the adsorption equilibrium was reached after 30 min; the mixed solution that reached the adsorption equilibrium was placed under a xenon lamp (λ > 420 nm, power 50 W), and the photocatalytic reaction was carried out at 30 °C and 600 rpm for 90 min , com...
Embodiment 3
[0079] Investigating the stability of silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst in removing antibiotics from water
[0080] The first group: investigate the stability of silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst to catalyze the removal of sulfamethazine in water, including the following steps:
[0081] (1) Take 100 mg of the silver phosphate / bismuth sulfide / bismuth oxide double Z-type photocatalyst (ABB-3) prepared in Example 1 and add it to 100 mL of sulfamethazine (SAZ) solution with a concentration of 10 mg / L , mixed evenly, and adsorbed SAZ at 30°C and 600 rpm, and reached adsorption equilibrium after 30 min; put the mixed solution that reached adsorption equilibrium under a xenon lamp (λ > 420 nm, power 50 W), and The photocatalytic reaction was carried out at 30 °C and 600 rpm for 60 min to complete the treatment of SAZ.
[0082] (2) After the treatment in step (1) is completed, the mixture obtained after...
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