TY - JOUR
T1 - Photocatalytic degradation of phenol in aqueous solution by rare earth-doped Snonanoparticles
AU - Al-Hamdi, Abdullah M.
AU - Sillanpää, Mika
AU - Dutta, Joydeep
N1 - Funding Information:
Acknowledgements Authors would like to thank partial financial support from the Chair in Nanotechnology Programme of the Research Council of Oman and the College of Science (Chemistry Department) for giving this opportunity to carry out the research at Sultan Qaboos University.
PY - 2014/7
Y1 - 2014/7
N2 - The influence of heterogeneous semiconductors on the photodegradation of phenol in water was investigated using doped tin dioxide (SnO2) nanoparticles. Photocatalysts of SnO2 were synthesized with lanthanum (La), cerium (Ce), and neodymium (Nd) dopants. These photocatalysts were synthesized from tin tetrachloride by sol-gel method with different dopant concentrations, and its photocatalytic degradation was investigated up to 0.8 % under UV-A light in aqueous suspensions. The photocatalytic oxidation reactions were studied by varying photocatalyst composition, light intensity, reaction time, pH of the reaction medium, and phenol concentration. It was found that the photocatalytic activity of rare earth-doped SnO2 for phenol decomposition under UV light irradiation was considerably higher than that of pure SnO2 nanoparticles. The experimental results also indicate that more than 95 % phenol was effectively oxidized in the presence of an aqueous suspension of La: SnO2 nanoparticles within 120 min of UV light irradiation.
AB - The influence of heterogeneous semiconductors on the photodegradation of phenol in water was investigated using doped tin dioxide (SnO2) nanoparticles. Photocatalysts of SnO2 were synthesized with lanthanum (La), cerium (Ce), and neodymium (Nd) dopants. These photocatalysts were synthesized from tin tetrachloride by sol-gel method with different dopant concentrations, and its photocatalytic degradation was investigated up to 0.8 % under UV-A light in aqueous suspensions. The photocatalytic oxidation reactions were studied by varying photocatalyst composition, light intensity, reaction time, pH of the reaction medium, and phenol concentration. It was found that the photocatalytic activity of rare earth-doped SnO2 for phenol decomposition under UV light irradiation was considerably higher than that of pure SnO2 nanoparticles. The experimental results also indicate that more than 95 % phenol was effectively oxidized in the presence of an aqueous suspension of La: SnO2 nanoparticles within 120 min of UV light irradiation.
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U2 - 10.1007/s10853-014-8223-2
DO - 10.1007/s10853-014-8223-2
M3 - Article
AN - SCOPUS:84900420377
SN - 0022-2461
VL - 49
SP - 5151
EP - 5159
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 14
ER -