Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying

The abundance of date palm tree wastes consists of foliar (RDFo), frond (RDFr) and thorn (RDTh) has led to the environmental problem in Saudi Arabia. Thus, in this study, the wastes have been proposed to be used as the precursor for activated carbon (AC) production. TGA studies suggest the temperatu...

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Main Author:	Mohd. Mustapha, Norasyikin
Format:	Thesis
Published:	2013
Subjects:	TP Chemical technology
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id	my-utm-ep.42218
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spelling	my-utm-ep.422182020-08-18T07:37:17Z Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying 2013 Mohd. Mustapha, Norasyikin TP Chemical technology The abundance of date palm tree wastes consists of foliar (RDFo), frond (RDFr) and thorn (RDTh) has led to the environmental problem in Saudi Arabia. Thus, in this study, the wastes have been proposed to be used as the precursor for activated carbon (AC) production. TGA studies suggest the temperature of 400°C is suitable for the pyrolysis process of wastes to select the best raw material for the activated carbon production. Activated carbon from RDFr with a specific surface area of 21.5 m2g-1, after analyzed by Nitrogen adsorption analysis (NAA) was chosen and activated chemically using phosphoric acid (H3PO4) as dehydrating agent. The effect of different acid concentration ranging from 10 to 80% (v/v) was studied to produce high surface area of AC. The products were further characterized using proximate analysis, FTIR, NAA and FESEM. The results showed that the pore development of AC produced was influenced by acid concentrations. The highest BET specific surface area of AC, 1247 m2g-1 was achieved by using 60% (v/v) of H3PO4. The selected AC was used as catalyst support in tungsten carbide (WC) synthesis. In this process, WC was prepared from tungsten trioxide precursor and magnesium as reducing agent using mechanical alloying method before undergoing heat treatment at 850°C. The products were characterized using single point BET surface area, XRD and FESEM. XRD analysis showed that the WC hexagonal phase was produced in the presence of tungsten semicarbide hexagonal phase in the final products. This is due to the insufficient ratio of reducing agent and shorter time for alloying process. 2013 Thesis http://eprints.utm.my/id/eprint/42218/ http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:78042 masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mohd. Mustapha, Norasyikin Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
description	The abundance of date palm tree wastes consists of foliar (RDFo), frond (RDFr) and thorn (RDTh) has led to the environmental problem in Saudi Arabia. Thus, in this study, the wastes have been proposed to be used as the precursor for activated carbon (AC) production. TGA studies suggest the temperature of 400°C is suitable for the pyrolysis process of wastes to select the best raw material for the activated carbon production. Activated carbon from RDFr with a specific surface area of 21.5 m2g-1, after analyzed by Nitrogen adsorption analysis (NAA) was chosen and activated chemically using phosphoric acid (H3PO4) as dehydrating agent. The effect of different acid concentration ranging from 10 to 80% (v/v) was studied to produce high surface area of AC. The products were further characterized using proximate analysis, FTIR, NAA and FESEM. The results showed that the pore development of AC produced was influenced by acid concentrations. The highest BET specific surface area of AC, 1247 m2g-1 was achieved by using 60% (v/v) of H3PO4. The selected AC was used as catalyst support in tungsten carbide (WC) synthesis. In this process, WC was prepared from tungsten trioxide precursor and magnesium as reducing agent using mechanical alloying method before undergoing heat treatment at 850°C. The products were characterized using single point BET surface area, XRD and FESEM. XRD analysis showed that the WC hexagonal phase was produced in the presence of tungsten semicarbide hexagonal phase in the final products. This is due to the insufficient ratio of reducing agent and shorter time for alloying process.
format	Thesis
qualification_level	Master's degree
author	Mohd. Mustapha, Norasyikin
author_facet	Mohd. Mustapha, Norasyikin
author_sort	Mohd. Mustapha, Norasyikin
title	Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
title_short	Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
title_full	Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
title_fullStr	Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
title_full_unstemmed	Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
title_sort	synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2013
_version_	1747816718586085376

Synthesis of tungsten carbide from waste date palm tree carbon by mechanical alloying

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