Efficient Removal of Bisphenol A by an Advanced Photocatalytic Oxidation‐type UV/H2O2/Fe‐loaded TiO2 System

E-ISSN： 1229-5949|36|8|2006-2014

ISSN： 1229-5949

Source： BULLETIN OF THE KOREAN CHEMICAL SOCIETY (ELECTRONIC), Vol.36, Iss.8, 2015-08, pp. : 2006-2014

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

This study focuses on the photocatalytic degradation efficiency of bisphenol A (BPA) when H2O2 is used. Based on the Fenton oxidation reaction, Fe ions (3.0, 5.0, and 10.0 mol%) loaded on the external surface of TiO2 nano‐sized materials as a photocatalyst were synthesized using a common solvothermal/impregnation hybrid method. With increasing Fe ion loading, the light absorption shifted to a longer wavelength, indicating shorter bandgaps, and the photoluminescence (PL) intensities decreased dramatically. The photocatalytic activities of two systems, namely a UV/photocatalytic system and an advanced photocatalytic oxidation‐type UV/H2O2/photocatalytic system, were compared using two types of catalysts, TiO2 and Fe‐TiO2. Slightly more BPA molecules decomposed in the UV/TiO2 photocatalytic system than the UV/Fe‐TiO2 system. On the other hand, the level of BPA destruction was significantly higher in the UV/H2O2/Fe‐TiO2 system. In particular, BPA molecules at 10.0 ppm were removed completely after only 2 h in the UV/H2O2/5.0 mol% Fe‐TiO2 photocatalytic system. These results confirm that the added H2O2 promotes the BPA oxidation on the Fe‐loaded TiO2 catalytic system.