TY - JOUR
T1 - Photocatalytic degradation of acid orange 7 using Cr-doped CeO2 nanorods
AU - Arul, Narayanasamy Sabari
AU - Mangalaraj, Devanesan
AU - Han, Jeong In
N1 - Publisher Copyright:
© 2015, Springer Science+Business Media New York.
PY - 2015/3
Y1 - 2015/3
N2 - Cr-doped CeO2 nanorods were prepared by a co-precipitation method using cerium and chromium nitrates with ammonia solution as the precipitator. The morphology and structure of the synthesized products were characterized by field emission scanning electron microscope, X-ray diffraction, and transmission electron microscopy. The specific surface area of the Cr-doped CeO2 nanorods (455 m2 g−1) is higher than those of CeO2 nanoparticles (52 m2 g−1). X-ray photoemission spectroscopy spectrum confirms the presence of Cr in CeO2 nanorods. UV–Vis spectra analyzes showed that the Cr-doped CeO2 nanorods exhibit the absorption band in the visible region. The synthesized products exhibited good photocatalytic activity for the degradation of acid orange 7 under UV–visible light illumination and the pseudo-first order reaction rate constant (k) of 0.250 h−1 for Cr-doped CeO2 nanorods is higher than 0.142 h−1 of CeO2 nanoparticles.
AB - Cr-doped CeO2 nanorods were prepared by a co-precipitation method using cerium and chromium nitrates with ammonia solution as the precipitator. The morphology and structure of the synthesized products were characterized by field emission scanning electron microscope, X-ray diffraction, and transmission electron microscopy. The specific surface area of the Cr-doped CeO2 nanorods (455 m2 g−1) is higher than those of CeO2 nanoparticles (52 m2 g−1). X-ray photoemission spectroscopy spectrum confirms the presence of Cr in CeO2 nanorods. UV–Vis spectra analyzes showed that the Cr-doped CeO2 nanorods exhibit the absorption band in the visible region. The synthesized products exhibited good photocatalytic activity for the degradation of acid orange 7 under UV–visible light illumination and the pseudo-first order reaction rate constant (k) of 0.250 h−1 for Cr-doped CeO2 nanorods is higher than 0.142 h−1 of CeO2 nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=84925506138&partnerID=8YFLogxK
U2 - 10.1007/s10854-014-2559-x
DO - 10.1007/s10854-014-2559-x
M3 - Article
AN - SCOPUS:84925506138
SN - 0957-4522
VL - 26
SP - 1441
EP - 1448
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 3
ER -