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Development of Fe/Ti02 Photocatalyst via Precipitation Method for Hydrogen Production from Water

Zahari, Aimi Zeti (2010) Development of Fe/Ti02 Photocatalyst via Precipitation Method for Hydrogen Production from Water. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Hydrogen has been developed as the most promising energy sources to replace fossil fuels. The most promising renewable technologies for hydrogen production is photochemical and photocatalytic water splitting using solar energy. Pure titania (Ti02) only absorb near-UV light which has wavelength 388 am or less. It is not economically feasible to use UV light for hydrogen production. Doped Ti02 with metals will enhanced the photocatalytic activity of Ti02. The main objective of this project was to develop Fe- Ti02 photocatalyst via precipitation method to produce hydrogen from water under visible light. This research covered preparation of iron-doped Ti02, finding the optimum calcination temperature, characterizing the photocatalyst prepared and determining the photocatalytic activity of Fe-Ti02 for hydrogen production from water. Fe-Ti02 was produced using precipitation methodwith different iron loadingwhich were 0.1, 0.5 and 1.0 wt% calcined at different temperature (300°C, 400°C and 500°C) for one hour. The photocatalytic study was performed at room temperature using a multiport photocatalytic reactor irradiated by 500-W halogen, lamp. Characterization of the photocatalysts was done by Thermogravimetric Analyzer (TGA), Diffuse Reflectance UV-Vis (DR-UV-Vis), Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared (FTIR), and X-ray Diffraction (XRD). It was found that 0.5wt% calcined at 300°C evolved the highest hydrogen from water (5.75 mL). Fe/Ti02 lowered the band gap, resulting in increasing of hydrogen production from water. The reduction of band gap as a result of doping was estimated and the effects of the parameters (Fe loading and calcination temperature) on photocatalytic activity are explained. IV

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Catalysis
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 08 Jan 2014 08:47
Last Modified: 08 Jan 2014 08:47
URI: http://utpedia.utp.edu.my/id/eprint/10801

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