| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 59601 | Chinese Journal of Catalysis | 2010 | 8 Pages |
The composites comprising Fe-carbon nanotubes (CNTs) on TiO2 were prepared by a modified sol-gel method and characterized by nitrogen adsorption, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and energy dispersive X-ray analysis. The photocatalytic decomposition of rhodamine B (Rh.B) under UV irradiation and air aeration catalyzed by the composites was measured. The photocatalytic activity of TiO2 nanoparticles was significantly enhanced by the large CNT network that facilitated electron transfer between adsorbed Rh.B molecules and the catalyst substrate and the simultaneous occurrence of the photo-Fenton reaction in the presence of Fe particles. A marked acceleration of the decomposition rate was observed with aeration by flowing air aeration due to the formation of the circulatory photo-Fenton system. Chemical oxygen demand of piggery waste was measured at regular intervals to evaluate the mineralization of wastewater.
Graphical abstractThe responsibilities for the obvious increase of photocatalytic activity indicated that the photoactivity not only benefits from CNT introduced, but also relates to the cooperative effect of the Fe particles via photo-Fenton reaction.Figure optionsDownload full-size imageDownload as PowerPoint slide
