Nitrocellulose membrane(NCM)can produce hydroxyl radicals under illumination,which promotes the oxidative degradation of organic pollutants.In this paper,NCM was used to oxidize bisphenol A(BPA)under simulated sunligh...Nitrocellulose membrane(NCM)can produce hydroxyl radicals under illumination,which promotes the oxidative degradation of organic pollutants.In this paper,NCM was used to oxidize bisphenol A(BPA)under simulated sunlight.The effects of p H,temperature,light intensity,anion and cation on the degradation of BPA were analyzed.The photodegradation process of BPA was discussed.The optimal photolysis rate was 0.031 min^(-)1 when the temperature was 30°C,the light intensity was 2.67×10^4 Lux,and the p H value was 9.0.The alkaline environment,temperature and light intensity can promote the photodegradation of BPA.Except for nitrate ions,anions and cations can inhibit the photodegradation of BPA.Compared with cations,anions have a greater inhibitory effect on BPA degradation.The degradation products of BPA by NCM were analyzed by gas chromatographic/mass.This study may provide useful information for the BPA degradation by NCM in complex water samples.展开更多
基金the Plan for Scientific Innovation Talent of Henan Province(No.19420051001)the major project for Henan Province Joint Funds of the National Natural Science Foundation of China(No.U1704241)the National Natural Science Foundation of China(No.41702174)。
文摘Nitrocellulose membrane(NCM)can produce hydroxyl radicals under illumination,which promotes the oxidative degradation of organic pollutants.In this paper,NCM was used to oxidize bisphenol A(BPA)under simulated sunlight.The effects of p H,temperature,light intensity,anion and cation on the degradation of BPA were analyzed.The photodegradation process of BPA was discussed.The optimal photolysis rate was 0.031 min^(-)1 when the temperature was 30°C,the light intensity was 2.67×10^4 Lux,and the p H value was 9.0.The alkaline environment,temperature and light intensity can promote the photodegradation of BPA.Except for nitrate ions,anions and cations can inhibit the photodegradation of BPA.Compared with cations,anions have a greater inhibitory effect on BPA degradation.The degradation products of BPA by NCM were analyzed by gas chromatographic/mass.This study may provide useful information for the BPA degradation by NCM in complex water samples.
