TY - JOUR
T1 - Photocatalytic removal of phenol from refinery wastewater
T2 - Catalytic activity of Cu-doped titanium dioxide
AU - Al-Muhtaseb, Ala'a H.
AU - Khraisheh, Majeda
N1 - Funding Information:
Majeda Khraisheh acknowledge the Qatar National Research Fund under its National Priorities Research Program award number NPRP 09-328-2-122. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Qatar National Research fund.
Publisher Copyright:
© 2015.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - A series of Cu-doped TiO2 catalysts were prepared by a sol-gel method and the effect of various synthesis parameters, including solvent type; solvent/catalyst amount; amount of water; catalyst type/amount; and acid type, on removal of phenol from refinery wastewater under UV-irradiation was investigated. Among the three solvents used, ethanol (En); isopropanol (Iso) and 2(2-Ethoxyethoxy) ethanol (Exy); undoped-TiO2 catalysts prepared with ethanol (En) solvent showed the highest phenol degradation rate even though the surface area of isopropanol is 6 times higher than ethanol. However, for Cu-doped TiO2 catalysts, isopropanol showed the highest photodegradation rate of phenol. Increasing the amount of water increased the surface area of the catalyst accordingly but no clear trend between phenol degradation rate and the amount of water used was observed. In contrast to NaOH, the addition of HCl improved the photodegradation rate of phenol while H2SO4 was twice as effective with respect to the phenol degradation.
AB - A series of Cu-doped TiO2 catalysts were prepared by a sol-gel method and the effect of various synthesis parameters, including solvent type; solvent/catalyst amount; amount of water; catalyst type/amount; and acid type, on removal of phenol from refinery wastewater under UV-irradiation was investigated. Among the three solvents used, ethanol (En); isopropanol (Iso) and 2(2-Ethoxyethoxy) ethanol (Exy); undoped-TiO2 catalysts prepared with ethanol (En) solvent showed the highest phenol degradation rate even though the surface area of isopropanol is 6 times higher than ethanol. However, for Cu-doped TiO2 catalysts, isopropanol showed the highest photodegradation rate of phenol. Increasing the amount of water increased the surface area of the catalyst accordingly but no clear trend between phenol degradation rate and the amount of water used was observed. In contrast to NaOH, the addition of HCl improved the photodegradation rate of phenol while H2SO4 was twice as effective with respect to the phenol degradation.
KW - Phenol
KW - Photocatalytic degradation
KW - Refinery wastewater
KW - Sol-gel method
KW - Titanium dioxide
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U2 - 10.1016/j.jwpe.2015.09.004
DO - 10.1016/j.jwpe.2015.09.004
M3 - Article
AN - SCOPUS:84942525951
SN - 2214-7144
VL - 8
SP - 82
EP - 90
JO - Journal of Water Process Engineering
JF - Journal of Water Process Engineering
ER -