纳米酶催化臭氧化降解水体中有机紫外防晒剂

Research on the Catalytic Ozonization of Organic UV Filters in Water

采用纳米酶催化臭氧化降解水体中有机紫外防晒剂的方法,探究在不同反应时间、溶液初始浓度、投加量、温度以及pH条件下通入臭氧对氨基苯甲酸和BP-3降解效率的影响.结果表明,温度35℃,pH 6.2,纳米酶用量0.9 g/100 mL溶液,通入臭氧时间13 min[400 mg/(L·h)],振荡时间30 min,对10 mg/L对氨基苯甲酸溶液的降解率达96%;温度30℃,pH 6.0,纳米酶用量0.1 g/30 mL溶液,通入臭氧时间10 min[400 mg/(L·h)],振荡时间15 min,对20 mg/L BP-3溶液的降解率达为91%,且催化氧化过程符合准一级动力学方程.

Nanoenzyme catalyzed ozonization for degrading organic uv filters in water is used to explore the effect of ozone on aminobenzoic acid and BP-3 degradation efficiency under different reaction time,initial concentration of solution,dosage,temperature and pH.The results show that with temperature of 35℃,pH 6.2,nano enzyme dosage of 0.9g/100mL,time for going into the ozone of 13 min[400 mg/(L·h)],oscillation time of 30 min,the degradation rate to 10 mg/L aminobenzoic acid solution is more than 96%.Under the temperature of 30℃,pH 6.0,nano enzyme dosage of 0.1g/30mL,going into the ozone for 10 min[400 mg/(L·h)],oscillation time of 15 min,degradation rate to 20 mg/L BP-3 solution is more than 91%,and the catalytic oxidation process is in accordance with first order kinetic equation.