TY - JOUR
T1 - Efficient photocatalytic degradation of phenol in aqueous solution by SnO 2 :Sb nanoparticles
AU - Al-Hamdi, Abdullah M.
AU - Sillanpää, Mika
AU - Bora, Tanujjal
AU - Dutta, Joydeep
N1 - Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - Photodegradation of phenol in the presence of tin dioxide (SnO 2 ) nanoparticles under UV light irradiation is known to be an effective photocatalytic process. However, phenol degradation under solar light is less effective due to the large band gap of SnO 2 . In this study antimony (Sb) doped tin dioxide (SnO 2 ) nanoparticles were prepared at a low temperature (80°C) by a sol-gel method and studied for its photocatalytic activity with phenol as a test contaminant. The catalytic degradation of phenol in aqueous media was studied using high performance liquid chromatography and total organic carbon measurements. The change in the concentration of phenol affects the pH of the solution due to the by-products formed during the photo-oxidation of phenol. The photoactivity of SnO 2 :Sb was found to be a maximum for 0.6 wt.% Sb doped SnO 2 nanoparticles with 10 mg L -1 phenol in water. Within 2 h of photodegradation, more than 95% of phenol could be removed under solar light irradiation.
AB - Photodegradation of phenol in the presence of tin dioxide (SnO 2 ) nanoparticles under UV light irradiation is known to be an effective photocatalytic process. However, phenol degradation under solar light is less effective due to the large band gap of SnO 2 . In this study antimony (Sb) doped tin dioxide (SnO 2 ) nanoparticles were prepared at a low temperature (80°C) by a sol-gel method and studied for its photocatalytic activity with phenol as a test contaminant. The catalytic degradation of phenol in aqueous media was studied using high performance liquid chromatography and total organic carbon measurements. The change in the concentration of phenol affects the pH of the solution due to the by-products formed during the photo-oxidation of phenol. The photoactivity of SnO 2 :Sb was found to be a maximum for 0.6 wt.% Sb doped SnO 2 nanoparticles with 10 mg L -1 phenol in water. Within 2 h of photodegradation, more than 95% of phenol could be removed under solar light irradiation.
KW - Antimony
KW - Doping
KW - Phenol degradation
KW - Photocatalysis
KW - Tin dioxide nanoparticles
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U2 - 10.1016/j.apsusc.2016.02.123
DO - 10.1016/j.apsusc.2016.02.123
M3 - Article
AN - SCOPUS:84959420785
SN - 0169-4332
VL - 370
SP - 229
EP - 236
JO - Applied Surface Science
JF - Applied Surface Science
ER -