Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent

Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent

In this study, the potential of application of photo-catalytic degradation of palm oil mill effluent (POME) using metal-doped TiO2 was explored. The study comprised of synthesis and characterization of TiO2 based photo-catalysts doped with platinum (Pt) and silver (Ag) to widen the light absorption s...

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Main Author: Mohd Rizauddin, Deraman
Format: Thesis
Language:English
Published: 2015
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/10983/19/Synthesis%20and%20characterization%20of%20platinum%20doped%20titania%20and%20silver%20doped%20titania%20for%20photo-catalytic%20degradation%20of%20pre-treated%20palm%20oil%20mill%20effluent.pdf
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spelling my-ump-ir.109832021-11-02T02:49:09Z Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent 2015-01 Mohd Rizauddin, Deraman TP Chemical technology In this study, the potential of application of photo-catalytic degradation of palm oil mill effluent (POME) using metal-doped TiO2 was explored. The study comprised of synthesis and characterization of TiO2 based photo-catalysts doped with platinum (Pt) and silver (Ag) to widen the light absorption spectrum. The aim was to study the effect of photo-catalytic degradation of the pre-treated POME. The experiment was carried out under the UV and visible light and monitoring the COD degradation of pre-treated POME. Various factors affecting the photo-catalytic performance such as metal loadings and photo-catalyst loading were investigated to determine the best operating conditions for POME treatment. Physicochemical characterization studies showed that both Pt/TiO2 and Ag/TiO; have mesopores structure with BJH pore diameter ranged from 11.0 to 20.0 nm. Moreover, the catalysts possessed low BET specific surface area (7.0 to 12.0 m2/g) with the surface morphology also captured by the FESEM images. XRD diffractogram proved that the high temperature did not alter the crystalline structure of catalysts as well as the phase which was retained in anatase phase. The absorption of spectrum in visible range by Ag/TiO2 was confirmed by UV-vis DRS. Results have shown that, for metal loading effects employing a minimum 0.2 g/L of photocatalyst, it can be concluded that the 0.50 wt% Pt and 0.50 wt% Ag loadings yielded the best performance with the highest apparent specific reaction rate, k,,,,,,, obtained from the first-order Power law modelling under the irradiation of UV and visible light, respectively. In addition, the studies pertaining to the effects of photocatalyst loadings over the 0.50 wt% Pt/TiO2 and 0.50 Wt% Ag/TiO; photocatalysts showed that l.O g/L of Pt/TiO; was the optimum loading whilst for the Ag/TiO2, optimum loading was at 1.5 g/L. The photo-catalytic degradation process using both platinum doped titania and silver doped titania is the ideal solution for pome treatment. This finding should be useful in design, operation, optimization and control of photo-catalytic degradation process. For future works, other types of visible-light responsive catalysts can be employed with some in-situ activity characterizations using sophisticated equipment with various process temperatures 2015-01 Thesis http://umpir.ump.edu.my/id/eprint/10983/ http://umpir.ump.edu.my/id/eprint/10983/19/Synthesis%20and%20characterization%20of%20platinum%20doped%20titania%20and%20silver%20doped%20titania%20for%20photo-catalytic%20degradation%20of%20pre-treated%20palm%20oil%20mill%20effluent.pdf pdf en public masters Universiti Malaysia Pahang Faculty of Chemical & Natural Resources Engineering
institution Universiti Malaysia Pahang Al-Sultan Abdullah
collection UMPSA Institutional Repository
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Mohd Rizauddin, Deraman
Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
description In this study, the potential of application of photo-catalytic degradation of palm oil mill effluent (POME) using metal-doped TiO2 was explored. The study comprised of synthesis and characterization of TiO2 based photo-catalysts doped with platinum (Pt) and silver (Ag) to widen the light absorption spectrum. The aim was to study the effect of photo-catalytic degradation of the pre-treated POME. The experiment was carried out under the UV and visible light and monitoring the COD degradation of pre-treated POME. Various factors affecting the photo-catalytic performance such as metal loadings and photo-catalyst loading were investigated to determine the best operating conditions for POME treatment. Physicochemical characterization studies showed that both Pt/TiO2 and Ag/TiO; have mesopores structure with BJH pore diameter ranged from 11.0 to 20.0 nm. Moreover, the catalysts possessed low BET specific surface area (7.0 to 12.0 m2/g) with the surface morphology also captured by the FESEM images. XRD diffractogram proved that the high temperature did not alter the crystalline structure of catalysts as well as the phase which was retained in anatase phase. The absorption of spectrum in visible range by Ag/TiO2 was confirmed by UV-vis DRS. Results have shown that, for metal loading effects employing a minimum 0.2 g/L of photocatalyst, it can be concluded that the 0.50 wt% Pt and 0.50 wt% Ag loadings yielded the best performance with the highest apparent specific reaction rate, k,,,,,,, obtained from the first-order Power law modelling under the irradiation of UV and visible light, respectively. In addition, the studies pertaining to the effects of photocatalyst loadings over the 0.50 wt% Pt/TiO2 and 0.50 Wt% Ag/TiO; photocatalysts showed that l.O g/L of Pt/TiO; was the optimum loading whilst for the Ag/TiO2, optimum loading was at 1.5 g/L. The photo-catalytic degradation process using both platinum doped titania and silver doped titania is the ideal solution for pome treatment. This finding should be useful in design, operation, optimization and control of photo-catalytic degradation process. For future works, other types of visible-light responsive catalysts can be employed with some in-situ activity characterizations using sophisticated equipment with various process temperatures
format Thesis
qualification_level Master's degree
author Mohd Rizauddin, Deraman
author_facet Mohd Rizauddin, Deraman
author_sort Mohd Rizauddin, Deraman
title Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
title_short Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
title_full Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
title_fullStr Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
title_full_unstemmed Synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
title_sort synthesis and characterization of platinum doped titania and silver doped titania for photo-catalytic degradation of pre-treated palm oil mill effluent
granting_institution Universiti Malaysia Pahang
granting_department Faculty of Chemical & Natural Resources Engineering
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/10983/19/Synthesis%20and%20characterization%20of%20platinum%20doped%20titania%20and%20silver%20doped%20titania%20for%20photo-catalytic%20degradation%20of%20pre-treated%20palm%20oil%20mill%20effluent.pdf
_version_ 1783731935923666944

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