[Photodegradation of bisphenol A in presence of Suwannee River fulvic acid].
Under simulated solar irradiation, the degradation of bisphenol A (BPA) was studied in the presence of Suwannee River Fulvic Acid (SRFA). The results demonstrate that the photodegradation of BPA followed a pseudo-first-order kinetics and the photodegradation rate increased rapidly with increasing initial concentration of SRFA. Hydroxyl radical, singlet oxygen were found in the SRFA solutions of BPA with molecular probes and the technique of electronic spin resonance. The electronic energy transfer of triplet state fulvic acid was also studied with various aerated conditions. The results showed that the photodegradation of BPA was related with triplet state fulvic acid. The photodegradation products of BPA in the presence of SRFA were identified with GC/MS methods. The photodegradation pathways of BPA were also discussed.
Yang
Hong-Sheng
HS
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China. yangxi@nju.edu.cn
Yang
Xi
X
Zhan
Man-Jun
MJ
Zhang
Ai-Qian
AQ
D001559:Benzhydryl Compounds; D001578:Benzopyrans / Q000737:chemistry*; D005618:Fresh Water / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D010777:Photochemistry; D045483:Rivers; D013472:Sunlight; D014874:Water Pollutants, Chemical / Q000032:analysis*; D000098826:Bisphenol A Compounds
D001559:Benzhydryl Compounds; D001578:Benzopyrans; D010636:Phenols; D014874:Water Pollutants, Chemical; C006780:bisphenol A; D000098826:Bisphenol A Compounds; C005023:fulvic acid