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Efficient photodegradation of 4,4′-(propane-2,2-diyl)diphenol over biomolecule modified titanium dioxide under visible light irradiation
- Source :
-
Catalysis Communications . Nov2011, Vol. 16 Issue 1, p7-10. 4p. - Publication Year :
- 2011
-
Abstract
- Abstract: A novel biomolecule (urushiol) grafted Degussa P25 hybrid nanoparticle (UP25) was synthesized, and its structure was characterized. The UP25 hybrid nanoparticle showed high photoactivity under visible light irradiation (λ≥420nm). 4,4′-(propane-2,2-diyl)diphenol (Bisphenol A, BPA) can easily approach to UP25 surface through the hydrophobic channels between alkyl groups in urushiol. BPA degradation rate constants were 1.02×10−3 min−1 and 4.96×10−3 min−1 over P25 and UP25, respectively. Radical quenching experiments proved that the superoxide radical anion (O2 −) mediated oxidation pathways were dominant for degradation of BPA. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 15667367
- Volume :
- 16
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Catalysis Communications
- Publication Type :
- Academic Journal
- Accession number :
- 69533596
- Full Text :
- https://doi.org/10.1016/j.catcom.2011.08.028