TY - JOUR
T1 - Effect of synthesis methods on the photocatalytic DeNOx activity of CaAl2O4:(Eu, Nd)/TiO2-xNy composites
AU - Li, H. H.
AU - Yin, S.
AU - Sato, T.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - CaAl2O4:(Eu,Nd)/TiO2-xNy composites were synthesized via two different methods, i.e., a two-step method (solvothermal reaction followed by mechanochemical treatment) and a one-step method (direct solvothermal dispersion method), and the photocatalytic activities were evaluated for deNOx ability both under UV light (λ>290 nm) irradiation and after turning off the UV light. It was confirmed that TiO2-xNy nanoparticles with anatase phase could be uniformly dispersed on the surface of CaAl2O4:(Eu, Nd) by both method. However, the composites prepared by a one-step method possessed much larger specific surface areas, higher photocatalytic activity and more prolonged catalytic time after turning off the light than those by a two-step method, indicating that the solvothermal method is more appropriate for the synthesis of CaAl2O4:(Eu, Nd)/TiO2-xNy composite photocatalyst.
AB - CaAl2O4:(Eu,Nd)/TiO2-xNy composites were synthesized via two different methods, i.e., a two-step method (solvothermal reaction followed by mechanochemical treatment) and a one-step method (direct solvothermal dispersion method), and the photocatalytic activities were evaluated for deNOx ability both under UV light (λ>290 nm) irradiation and after turning off the UV light. It was confirmed that TiO2-xNy nanoparticles with anatase phase could be uniformly dispersed on the surface of CaAl2O4:(Eu, Nd) by both method. However, the composites prepared by a one-step method possessed much larger specific surface areas, higher photocatalytic activity and more prolonged catalytic time after turning off the light than those by a two-step method, indicating that the solvothermal method is more appropriate for the synthesis of CaAl2O4:(Eu, Nd)/TiO2-xNy composite photocatalyst.
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U2 - 10.1088/1757-899X/18/17/172003
DO - 10.1088/1757-899X/18/17/172003
M3 - Conference article
AN - SCOPUS:84859310966
VL - 18
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - SYMPOSIUM 11
M1 - 172003
T2 - 3rd International Congress on Ceramics, ICC 2011
Y2 - 14 November 2010 through 18 November 2010
ER -