| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 51551 | Catalysis Communications | 2011 | 4 Pages |
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 ≥ 420 nm). 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.
► A new biomolecular semiconductor composite (urushiol modified TiO2) was synthesized. ► The reaction constant of BPA degradation increased by 4.9 times after modification. ► Superoxide radical mediated oxidation pathways were dominant for BPA degradation.
