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Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light

Solar energy is concerned in order to generate hydrogen (Hz) from water with the present of photocatalyst. The main problem is that current titanium dioxide (TiOz) photocatalyst is only active in the ultraviolet (UV) region. In order to harvest the abundance solar radiation consisting mainly of v...

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Main Author: Basar, Noor Hemiza
Format: Final Year Project
Language:English
Published: Universiti Teknologi PETRONAS 2010
Subjects:
TP Chemical technology
Online Access:http://utpedia.utp.edu.my/9439/1/2010%20-%20Development%20of%20Fe%20TiO2%20Photocatalyst%20for%20Hydrogen%20Production%20from%20Water%20Under%20Visible%20Ligh.pdf
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spelling my-utp-utpedia.94392013-10-22T12:24:43Z http://utpedia.utp.edu.my/9439/ Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light Basar, Noor Hemiza TP Chemical technology Solar energy is concerned in order to generate hydrogen (Hz) from water with the present of photocatalyst. The main problem is that current titanium dioxide (TiOz) photocatalyst is only active in the ultraviolet (UV) region. In order to harvest the abundance solar radiation consisting mainly of visible light, the efficiency of Ti02 has to be increased by shifted the absorption edge of Ti02 to the visible region. In order to increase the efficiency, the Ti02 photocatalyst is modified via metal doping method. The production of hydrogen over iron-doped titanium dioxide (Fe/TiOz) photocatalyst prepared by precipitation method has been studied. The iron (Fe) loading varied from 0.1 to 1.0 wt"lo with different calcination temperature at 300°C, 400°C and 500°C. The photocatalyst was characterized by Thermogravimetric Analysis (TGA), Diffuse Reflectance UV-Vis (DR UV-Vis), Fourier Transform Infrared (FTIR) Spectroscopy, X-ray Diffraction (XRD), and Field Emission Scanning Electron Microscopy (FE-SEM). The UV-vis absorption spectrum indicated that the absorption edge of the photocatalyst red-shifted to around 600 nm. The lowest reduction of band gap as a result of Fe doping was obtained at l.Owt% Fe/Ti02 calcined at 500°C (3.08 eV) compared to pure Ti02 (3.20 eV). Photocatalytic activity towards Hz generation from water was investigated using a multiport photocatalytic reactor by using halogen lamp that represented solar radiation. Under the irradiation with ultraviolet and visible light, the photocatalyst showed good performance for Hz production at 1,0 wt"/o of Fe loading calcined at 500°C with the production rate of 6.9 mL. The other characterizations of the photocatalyst were explained throughout this report. Universiti Teknologi PETRONAS 2010-07 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/9439/1/2010%20-%20Development%20of%20Fe%20TiO2%20Photocatalyst%20for%20Hydrogen%20Production%20from%20Water%20Under%20Visible%20Ligh.pdf Basar, Noor Hemiza (2010) Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light. Universiti Teknologi PETRONAS. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Basar, Noor Hemiza
Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light
description Solar energy is concerned in order to generate hydrogen (Hz) from water with the present of photocatalyst. The main problem is that current titanium dioxide (TiOz) photocatalyst is only active in the ultraviolet (UV) region. In order to harvest the abundance solar radiation consisting mainly of visible light, the efficiency of Ti02 has to be increased by shifted the absorption edge of Ti02 to the visible region. In order to increase the efficiency, the Ti02 photocatalyst is modified via metal doping method. The production of hydrogen over iron-doped titanium dioxide (Fe/TiOz) photocatalyst prepared by precipitation method has been studied. The iron (Fe) loading varied from 0.1 to 1.0 wt"lo with different calcination temperature at 300°C, 400°C and 500°C. The photocatalyst was characterized by Thermogravimetric Analysis (TGA), Diffuse Reflectance UV-Vis (DR UV-Vis), Fourier Transform Infrared (FTIR) Spectroscopy, X-ray Diffraction (XRD), and Field Emission Scanning Electron Microscopy (FE-SEM). The UV-vis absorption spectrum indicated that the absorption edge of the photocatalyst red-shifted to around 600 nm. The lowest reduction of band gap as a result of Fe doping was obtained at l.Owt% Fe/Ti02 calcined at 500°C (3.08 eV) compared to pure Ti02 (3.20 eV). Photocatalytic activity towards Hz generation from water was investigated using a multiport photocatalytic reactor by using halogen lamp that represented solar radiation. Under the irradiation with ultraviolet and visible light, the photocatalyst showed good performance for Hz production at 1,0 wt"/o of Fe loading calcined at 500°C with the production rate of 6.9 mL. The other characterizations of the photocatalyst were explained throughout this report.
format Final Year Project
author Basar, Noor Hemiza
author_facet Basar, Noor Hemiza
author_sort Basar, Noor Hemiza
title Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light
title_short Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light
title_full Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light
title_fullStr Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light
title_full_unstemmed Development of Fe/Ti02 Photocatalyst for Hydrogen Production from Water under Visible Light
title_sort development of fe/ti02 photocatalyst for hydrogen production from water under visible light
publisher Universiti Teknologi PETRONAS
publishDate 2010
url http://utpedia.utp.edu.my/9439/1/2010%20-%20Development%20of%20Fe%20TiO2%20Photocatalyst%20for%20Hydrogen%20Production%20from%20Water%20Under%20Visible%20Ligh.pdf
http://utpedia.utp.edu.my/9439/
_version_ 1739831672473387008
score 13.244404

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