TY - JOUR
T1 - High performance visible light responsive photocatalysts for environmental cleanup via solution processing
AU - Sato, Tsugio
AU - Zhang, Peilin
AU - Yin, Shu
PY - 2012/6
Y1 - 2012/6
N2 - Fabrication of nitrogen-doped titania and/or strontium titanate nanoparticles via soft chemical reactions and their performance for environmental cleanup under visible light irradiation were introduced. Nitrogen-doped anatase, brookite and rutile with high specific surface area can be selectively prepared by the solvothermal reactions in mixed aqueous solution of titanium trichloride-hexamethylenetetramine. Nitrogen-doped strontium titanate can be prepared by mechanochemical reaction of strontium carbonate, titania and hexamethylenetetramine using a planetary ball-mill. Nitrogen-doped titania shows excellent photocatalytic activity for the nitrogen monoxide destruction under visible light irradiation. The photocatalytic activity of nitrogen-doped titania is in the order anatase > brookite > rutile. The photocatalytic activity of nitrogen-doped titania and strontium titanate can be improved by co-doping with higher valence metal ions to reduce oxygen vacancy and/or coupling with Fe 2O 3 and Pt to retard quick recombination of photo-induced electron and hole by the heterogeneous electron transfer.
AB - Fabrication of nitrogen-doped titania and/or strontium titanate nanoparticles via soft chemical reactions and their performance for environmental cleanup under visible light irradiation were introduced. Nitrogen-doped anatase, brookite and rutile with high specific surface area can be selectively prepared by the solvothermal reactions in mixed aqueous solution of titanium trichloride-hexamethylenetetramine. Nitrogen-doped strontium titanate can be prepared by mechanochemical reaction of strontium carbonate, titania and hexamethylenetetramine using a planetary ball-mill. Nitrogen-doped titania shows excellent photocatalytic activity for the nitrogen monoxide destruction under visible light irradiation. The photocatalytic activity of nitrogen-doped titania is in the order anatase > brookite > rutile. The photocatalytic activity of nitrogen-doped titania and strontium titanate can be improved by co-doping with higher valence metal ions to reduce oxygen vacancy and/or coupling with Fe 2O 3 and Pt to retard quick recombination of photo-induced electron and hole by the heterogeneous electron transfer.
KW - deNO
KW - Hydrothermal
KW - Low-temperature synthesis
KW - Mechanochemical doping
KW - Nitrogen-doped strontium titanate
KW - Nitrogen-doped titania
KW - Soft chemical processes
KW - Solvothermal
KW - Visible light responsive photocatalyst
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U2 - 10.1016/j.pcrysgrow.2012.02.001
DO - 10.1016/j.pcrysgrow.2012.02.001
M3 - Article
AN - SCOPUS:84862828779
SN - 0960-8974
VL - 58
SP - 92
EP - 105
JO - Progress in Crystal Growth and Characterization of Materials
JF - Progress in Crystal Growth and Characterization of Materials
IS - 2-3
ER -