TY - JOUR
T1 - Solvothermal synthesis of three-dimensional CeO2 micropillows and their photocatalytic property
AU - Arul, Narayanasamy Sabari
AU - Mangalaraj, Devanesan
AU - Han, Jeong In
PY - 2014/7
Y1 - 2014/7
N2 - Three-dimensional (3D) CeO2 micropillows were synthesized by using solvothermal method. The pH of the precursor solution was adjusted to 10 by adding ammonium hydroxide. The structural, morphology and compositional characteristics of CeO2 micropillows were investigated by XRD, SEM, TEM and EDAX. XRD analysis showed the formation of CeO2 micropillows. BET analysis showed high specific surface area for the synthesized CeO2 micropillows (191 m2 g-1). Optical absorption of CeO2 micropillows showed enhanced photoabsorption ability with the estimated band gap energy of 2.8 eV. The photodegradation rate of the CeO2micropillows was found to be 87% and obeys pseudo-first-order equation. The photocatalytic results indicated that the CeO2 micropillows exhibit enhanced photocatalytic property towards azo dye acid orange 7 (AO7) under UV-Vis light illumination.
AB - Three-dimensional (3D) CeO2 micropillows were synthesized by using solvothermal method. The pH of the precursor solution was adjusted to 10 by adding ammonium hydroxide. The structural, morphology and compositional characteristics of CeO2 micropillows were investigated by XRD, SEM, TEM and EDAX. XRD analysis showed the formation of CeO2 micropillows. BET analysis showed high specific surface area for the synthesized CeO2 micropillows (191 m2 g-1). Optical absorption of CeO2 micropillows showed enhanced photoabsorption ability with the estimated band gap energy of 2.8 eV. The photodegradation rate of the CeO2micropillows was found to be 87% and obeys pseudo-first-order equation. The photocatalytic results indicated that the CeO2 micropillows exhibit enhanced photocatalytic property towards azo dye acid orange 7 (AO7) under UV-Vis light illumination.
KW - Optical absorption
KW - Photocatalysts
KW - Solvothermal synthesis
KW - Surface area
UR - http://www.scopus.com/inward/record.url?scp=84904048056&partnerID=8YFLogxK
U2 - 10.1002/pssr.201409200
DO - 10.1002/pssr.201409200
M3 - Article
AN - SCOPUS:84904048056
SN - 1862-6254
VL - 8
SP - 643
EP - 647
JO - Physica Status Solidi - Rapid Research Letters
JF - Physica Status Solidi - Rapid Research Letters
IS - 7
ER -