Journal
FRONTIER OF NANOSCIENCE AND TECHNOLOGY
Volume 694, Issue -, Pages 815-819Publisher
TRANS TECH PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/MSF.694.815
Keywords
BPA; urushiol; superoxide radical; TiO2
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A novel urushiol grafted Degussa P25 (urushiol/P25) hybrid nano-material was synthesized, and its structure was characterized. The urushiol/P25 hybrid nanomaterial showed high photoactivity under visible light irradiation (lambda >= 420 nm). Bisphenol A (BPA) can easily approach to P25 surface through the hydrophobic channel between alkyl groups in urushiol. The reaction rate constant of BPA degradation increased by 4.9 times by using 0.5% urushiol/P25 as catalyst than by using bare P25. Radical quenching experiments proved that the superoxide radical anion (O-2(center dot-)) mediated oxidation pathways were dominant for BPA degradation.
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