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Efficient Removal of Bisphenol A by an Advanced Photocatalytic Oxidation‐type UV / H 2 O 2 /Fe‐loaded TiO 2 System
Author(s) -
Kang Sora,
Do Jeong Yeon,
Jo Seung Won,
Kim Kang Min,
Jeong Kyung Mi,
Park SunMin,
Kang Misook
Publication year - 2015
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10387
Subject(s) - photocatalysis , bisphenol a , catalysis , photoluminescence , degradation (telecommunications) , materials science , photochemistry , visible spectrum , nuclear chemistry , irradiation , chemistry , organic chemistry , composite material , optoelectronics , physics , nuclear physics , telecommunications , computer science , epoxy
This study focuses on the photocatalytic degradation efficiency of bisphenol A ( BPA ) when H 2 O 2 is used. Based on the Fenton oxidation reaction, Fe ions (3.0, 5.0, and 10.0 mol%) loaded on the external surface of TiO 2 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 / H 2 O 2 /photocatalytic system, were compared using two types of catalysts, TiO 2 and Fe‐ TiO 2 . Slightly more BPA molecules decomposed in the UV / TiO 2 photocatalytic system than the UV /Fe‐ TiO 2 system. On the other hand, the level of BPA destruction was significantly higher in the UV / H 2 O 2 /Fe‐ TiO 2 system. In particular, BPA molecules at 10.0 ppm were removed completely after only 2 h in the UV / H 2 O 2 /5.0 mol% Fe‐ TiO 2 photocatalytic system. These results confirm that the added H 2 O 2 promotes the BPA oxidation on the Fe‐loaded TiO 2 catalytic system.