Document Detail


Synthesis and the effect of calcination temperature on the physical-chemical properties and photocatalytic activities of Ni,La codoped SrTiO3.
MedLine Citation:
PMID:  20149529     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A series of highly vis-light active Ni,La-codoped SrTiO(3) photocatalysts were successfully synthesized with sol-gel process. The characterization results show that the calcination temperature has a strong influence on the physical-chemical properties of as-synthesized photocatalysts. The surface area and porosity, even the initial adsorption rate for malachite green (MG), decreased with increasing calcination temperature. To evaluate the photocatalytic activities, the photodegradation of a water contaminant (MG) was carried out under visible light irradiation. The as-synthesized photocatalysts exhibited a high vis-light activity, and a 100% degradation of MG was observed for the Ni,La-SrTiO(3)-x catalysts calcined at low temperature under visible light irradiation for 1h, during which only 7% and 15% of MG was degraded for self-degrade and commercially available photocatalyst Degussa P25, respectively. The high vis-light activity is a result of the best combination of many properties, such as the intensive visible light response, the large surface area and pore volume and the high initial adsorption rate for substrate.
Authors:
Aizhong Jia; Xiuqing Liang; Zhiqian Su; Tan Zhu; Shuangxi Liu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-01-18
Journal Detail:
Title:  Journal of hazardous materials     Volume:  178     ISSN:  1873-3336     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-04-13     Completed Date:  2010-07-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  233-42     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier B.V. All rights reserved.
Affiliation:
Institute of New Catalytic Materials Science, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
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MeSH Terms
Descriptor/Qualifier:
Catalysis
Lanthanum / chemistry*
Light
Microscopy, Electron, Scanning
Nickel / chemistry*
Oxides / chemistry*
Photochemistry
Rosaniline Dyes
Spectroscopy, Fourier Transform Infrared
Strontium / chemistry*
Temperature
Thermodynamics
Titanium / chemistry*
X-Ray Diffraction
Chemical
Reg. No./Substance:
0/Oxides; 0/Rosaniline Dyes; 10309-95-2/malachite green; 12060-59-2/strontium titanium oxide; 7439-91-0/Lanthanum; 7440-02-0/Nickel; 7440-24-6/Strontium; 7440-32-6/Titanium

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


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