Document Detail


Study on the photocatalysis performance and degradation kinetics of X-3B over modified titanium dioxide.
MedLine Citation:
PMID:  15721547     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this paper, reactive brilliant X-3B was used as a model compound to study the photocatalytic activity of TiO2. Experimental results showed that the adulteration of iron and silver on TiO2 could greatly improve the activity of TiO2, and the optimum adulteration amount of iron and silver was 0.1 wt.% (Fe/TiO2) and 0.05 wt.% (Ag/TiO2), respectively, at the adulteration range of experiments. The photocatalytic degradation kinetics of X-3B on TiO2, Fe/TiO2 and Ag/TiO2 were also studied. The results showed that the degradation of X-3B on all of them were in accordance with the Langmiur-Hinshelwood kinetics model well, and the sequence of apparent reaction rate constants k of X-3B degradation catalyzed by TiO2, Fe/TiO2 and Ag/TiO2 was Ag/TiO2>Fe/TiO2>TiO2, while adsorption equilibrium constants KA of X-3B on Fe/TiO2 and Ag/TiO2 were approximately the same, and both were greater than that of TiO2.
Authors:
Xin-Hua Qi; Zhong-Hua Wang; Yuan-Yi Zhuang; Ying Yu; Jia-Ling Li
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of hazardous materials     Volume:  118     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-02-21     Completed Date:  2005-06-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  219-25     Citation Subset:  IM    
Affiliation:
College of Environmental Science and Engineering of Nankai University, Tianjin 300071, PR China. qixinhua@nankai.edu.cn
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MeSH Terms
Descriptor/Qualifier:
Adsorption
Azo Compounds / chemistry*
Catalysis
Coloring Agents / chemistry*
Kinetics
Photochemistry
Textile Industry
Titanium / chemistry*
Waste Disposal, Fluid / methods*
Water Purification
Chemical
Reg. No./Substance:
0/Azo Compounds; 0/Coloring Agents; 13463-67-7/titanium dioxide; 7440-32-6/Titanium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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