Synergistic Effect of N and on Nanotitania in Photocatalytic Reduction of
Publication: Journal of Environmental Engineering
Volume 137, Issue 3
Abstract
Nitrogen and nickel codoped nanotitania ( ) photocatalysts for producing methanol by photocatalytic reduction of were prepared by an improved sol-gol method. The catalysts were characterized by XRD, HRTEM, DES, FTIR, TG-DSC, and UV-Vis, respectively. The experimental results indicated that nano- had better properties than the pure nanotitania ( ), N doped titania ( ), and doped titania ( ), considering their performance of photoresponse and photocatalytic reduction of . The methanol yield could reach 482.0μmol/g-cat under optimal conditions. Additionally, the synergetic effect of N and on nano- in photocatalytic reduction of was explained, and the mechanism of photocatalytic reduction on catalyst was proposed.
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Acknowledgments
The National Natural Science Foundation of China (No. NNSFC20876125), the Office of Higher Education in Shannxi Province Technology Research Projects (No. UNSPECIFIED08JK451), the Research Fund for the Doctoral Program of Higher Education (No. UNSPECIFIED20096101110013), NWU Graduate Cross-discipline Funds ( UNSPECIFIED09YJC24).
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© 2011 American Society of Civil Engineers.
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Received: Dec 27, 2009
Accepted: Aug 1, 2010
Published online: Aug 5, 2010
Published in print: Mar 1, 2011
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