铁-草酸盐配合物光分解降解对硝基苯酚的研究

Study on Degradation of P-nitrophenol Induced by Photolysis of Fe(Ⅲ)-oxalate

研究了铁(Ⅲ)-草酸盐配合物在可见光及太阳光照射下,对对硝基苯酚的光解降解作用。结果表明,在pH=4.0、Fe(Ⅲ)/H_2C_2O_4=0.080mmol/L/0.96mmol/L(分4次加入)、光照4h的条件下,20mg/L对硝基苯酚的降解率为89％。溶液pH值,铁与草酸盐浓度比和对硝基苯酚浓度均对降解效果产生影响。

The experiment of photochemical degradation of p-nitrophenol was conducted in aqueous solution containing Fe(Ⅲ)-oxalate complex irradiated with visible light and sunlight.Results showed the degradation rate of 20 mg/L p-nitrophenol was 89% in 4h light irradiation under the condition pH=4.0,Fe(Ⅲ)/H_2C_2O_4=0.080mmol/L/0.96mmol/L(divide into quartering and add in). PH, concentration ratio of Fe (Ⅲ) to oxalate and initial concentration of p-nitrophenol are found to have some effect on the degradation rate.