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《Environmental Science & Technology》 2012-12
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Photocatalytic Degradation of Bisphenol AF in TiO_2 Suspension

WANG Pin-wen(School of Environment,China University of Geosciences,Wuhan 430074,China)  
Photodegradation behavior of bisphenol AF(BPAF) in TiO2 suspension was investigated.Influence of dissolved oxygen,TiO2 dosage,fluoride and initial BPAF concentration on the degradation of BPAF was studied and described in details.The degradation kinetics of BPAF and the fluoride concentration during the degradation were focused.At an initial concentration of 40 μmol/L,more than 97% of TOC was removed within 540 min irradiation in the fluoride concentration of 0.98 mg/L.Degradation of BPAF followed the Langmuir-Hinshelwood kinetics rate model and reaction rate constant was 1.21 μmol/(L·min).Results indicated that TiO2 photocatalytic degradation is a highly effective way to remove BPAF without any generation of more toxic products or fluoride pollution.
【CateGory Index】: X703;O643.32
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