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Synthesis and Characterization of Hematite Nanowires/Nanorods as Active Photocatalyst for Water Splitting Application

Chin , Sze Mei (2012) Synthesis and Characterization of Hematite Nanowires/Nanorods as Active Photocatalyst for Water Splitting Application. UNIVERSITI TEKNOLOGI PETRONAS, UNIVERSITI TEKNOLOGI PETRONAS. (Unpublished)

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Abstract

Renewable energy and environmental issues are highly emphasized globally in order to replace and reduce the use of fossil fuels in various sectors. Thus, the research on hydrogen gas production has been done since decades ago as an alternative for renewable energy. Photocatalytic water splitting is one of the methods to produce hydrogen gas by using photocatalysts such as hematite. There are various methods to synthesize hematite nanostructures. However, the use of self-combustion method to synthesize hematite is still limited and under investigation. In addition, the effects of stirring period on the characteristics of the hematite nanostructures produced from self-combustion method have yet to be known from the studies. Thus, the objectives of this research are to synthesize and characterize hematite nanowires/nanorods by using self-combustion method based on different stirring period as well as to determine the effects of hematite synthesized on photocatalytic activity to produce hydrogen gas from water. This project highlights on the hydrogen production through photocatalytic activity by using hematite nanowires/nanorods synthesized from self-combustion method based on different stirring period. The morphologies and microstructures of the nanostructures are determined using Field- Emission Scanning Electron Microscope (FESEM), X-Ray Diffractometer (XRD) and Particle Size Analyser (PSA). Besides that, Brunauer-Emmett-Teller (BET) surface area analyser is used to determine the surface area of the hematite samples. The hematite nanocatalyst as-synthesized are proven to be rhombohedral crystalline hematite (α-Fe2O3) with diameters ranging from 60-140 nm. The BET surface area of hematite samples increased with increasing stirring period. This caused the amount of hydrogen gas produced from photocatalytic water splitting to increase as well.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Environment
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Sharifah Fahimah Saiyed Yoep
Date Deposited: 01 Apr 2013 09:13
Last Modified: 25 Jan 2017 09:39
URI: http://utpedia.utp.edu.my/id/eprint/6102

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