| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 57414 | Catalysis Today | 2008 | 4 Pages |
Abstract
The effects of the presence of α-MnO2, β-MnO2 and δ-MnO2 on the photocatalytic degradation of phenol by TiO2 and ZnO have been investigated. Experiments were conducted in a batch reactor, at initial pH 6.0 and 25 °C. The results showed that the TiO2-photocatalytic degradation of phenol was inhibited completely in the first 20–60 min in the presence of three crystal types of MnO2 whereas the ZnO-photocatalytic degradation of phenol only declined slightly. UV-vis diffuse reflectance spectroscopy (DRS) and surface photovoltage spectroscopy (SPS) analysis implied that the interaction of MnO2 with TiO2 and ZnO could change the energetic of these two photocatalysts.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Shunjun Li, Zichuan Ma, Jie Zhang, Yinsu Wu, Yamin Gong,