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Title

Photocatalytic Removal of Food Colorant E 131 VF from synthetic wastewater by Cu Doped TiO2 Samples

مجله بین المللی فناوری نانو در آب و محیط زیست، دوره: 4، شماره: 2
Year: 1398
COI: JR_JWENT-4-2_002
Language: EnglishView: 193
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Authors

Malak Ali El Tfayli - Chemistry Department, Lebanese University, Rafic Hariri Campus. El Hadath, Lebanon.
Fatima Ali Makki - Chemistry Department, Lebanese University, Rafic Hariri Campus. El Hadath, Lebanon.
Mounir Mustapha Kassir - Chemistry Department, Lebanese University, Rafic Hariri Campus. El Hadath, Lebanon.
Mouhiaddine Mohamed El Jamal - Chemistry Department, Lebanese University, Rafic Hariri Campus. El Hadath, Lebanon.

Abstract:

In this work, we studied the effect of various amounts (0.2-1.2 % mole ratio) of Cu doping to TiO2 nanoparticles (Cu/TiO2) on the photocatalytic removal efficiency of the food colorant E 131 VF. Two series of doped TiO2 (P25) photocatalysts were prepared in two different media (50%ethanol-50%acetone and 5% surfactant (Tween 20)-95%H2O) by using the impregnation method. The prepared samples were characterized by XRD, FTIR, Raman, diffuse reflectance spectroscopy and SEM/EDX analyses. The XRD results showed that the crystal dimension of TiO2 increased from 23 to 35 nm and rutile/anatase ratio decreased from 16% to 9% after Cu doping in two different media. The photoactivity of TiO2 was reduced in the presence of Cu even at low molar ratio. The photocatalytic degradation rate constant of TiO2 (P25) was 0.24 (au) but it decreased to 0.015 (au) in the presence of the sample containing 0.6% Cu. Several reasons were suggested to explain the dramatic decrease in the activity of the prepared Cu/TiO2samples.

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Paper COI Code

This Paper COI Code is JR_JWENT-4-2_002. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/961335/

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El Tfayli, Malak Ali and Ali Makki, Fatima and Mustapha Kassir, Mounir and El Jamal, Mouhiaddine Mohamed,1398,Photocatalytic Removal of Food Colorant E 131 VF from synthetic wastewater by Cu Doped TiO2 Samples,https://civilica.com/doc/961335

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