Photocatalytic Degradation of Bisphenol AF in TiO₂ Suspension

Abstract:

The photodegradation behavior of bisphenol AF (BPAF) in TiO₂ suspension was investigated. The influence of dissolved oxygen, TiO₂ dosage, fluoride, and initial BPAF concentration on the degradation of BPAF was studied and described in details. The main purposes were to clarify the degradation kinetics of BPAF and quantify the fluoride concentration during the degradation. At an initial concentration of 40 mol/L, more than 97% of TOC was removed efficiency was achieved within 540 min irradiation, and the concentration of fluoride was 0.98 mg/L. Degradation of BPAF followed the Langmuir–Hinshelwood kinetics rate model and the reaction rate constant kre was 1.21 μM/min. The results obtained indicated that TiO₂ photocatalytic degradation is a highly effective way to remove BPAF without any generation of more toxic products or fluoride pollution.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 2334-2339
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.2334
• Online since: June 2014
• Authors: Pin Wen Wang
• Keywords: Bisphenol AF, EDCs, Fluoride, TiO₂

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