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- Title
Degradation and adsorption of rhodamine B and phenol on TiO/MCM-41.
- Authors
Tian, Lihua; Liu, Huitao; Gao, Yuan
- Abstract
TiO/MCM-41 composites with various titania content were prepared by loading titania into the mesopores of MCM-41 molecular sieves by sol-gel method, and were used as photocatalysts to degrade Rhodamine B (RhB) and phenol. The efficiency of organic contaminants removal was increased significantly compared with pure TiO. Ti/Si ratio, namely, the content of TiO was determined by ICP-AES method. TiO/MCM-41 composites were characterized by X-ray diffraction, UV-Vis absorption spectroscopy and N adsorption techniques. Experimental results demonstrated that most of the RhB was adsorbed instead of being degradated by TiO/MCM-41 due to the large specific surface area of MCM-41, while most of phenol was degradated. It turned out that the TiO/MCM-41 with the highest Ti/Si ratio of 0.8220 (wt) had the highest catalytic activity.
- Subjects
PHENOL; ADSORPTION (Chemistry); RHODAMINE B; TITANIUM oxides; COMPOSITE materials; X-ray diffraction; SOL-gel processes; PHOTOCATALYSIS
- Publication
Kinetics & Catalysis, 2012, Vol 53, Issue 5, p554
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158412050175