Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib

Rice Husk and Imperata cylindrical (Cl) are natural agriculture waste and abundantly waste that can be used as an effectively resources for production of silica (SiO2). Silica can be apply as an additive for the manufacture of plastics and rubber; as a strengthening filler for concrete and other...

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Main Author:	Mohd Zarib, Noratiqah Syahirah
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Extraction (Chemistry)
Online Access:	https://ir.uitm.edu.my/id/eprint/53350/1/53350.pdf
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id	my-uitm-ir.53350
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spelling	my-uitm-ir.533502022-05-19T14:19:38Z Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib 2020-03 Mohd Zarib, Noratiqah Syahirah Extraction (Chemistry) Rice Husk and Imperata cylindrical (Cl) are natural agriculture waste and abundantly waste that can be used as an effectively resources for production of silica (SiO2). Silica can be apply as an additive for the manufacture of plastics and rubber; as a strengthening filler for concrete and other construction composites. The purpose of this study is to find an alternative way to extract the silica from the natural fibres which are Rice Husk and Imperata cylindrica via acid leaching treatment, due to silica as a raw material that can be contribute in industrial. Acid leaching treatment are carried out to extract the silica and remove metallic impurities in Rice Husk and Imperata cylindrica. Besides, the parameters such as concentration of acids and leaching time using organic and inorganic acid leaching method are also analysed. In this research, the extraction of silica from RH and Imperata cylindrica are done via acid leaching treatment using organic and inorganic reagent known as hydrochloric acid (HCL) and citric acid (C6H8O7). The scope of this research are to analyse the effect of acid treatment, the effect of extraction on stirring time and different solvent used to the yield of silica produced. The performance of this research is covered on several testing which are scanning electron microscopy (SEM)/Energy Dispersive X-ray (EDX) analysis, X-ray diffraction (XRD) spectroscopy analysis and Thermogravimetric Analysis (TGA) and for mechanical properties are Impact testing (ASTM D256) and Tapped Density (ASTM D7481-09) to analyse the samples. As a conclusion, results proved that silica can be extracted from all natural fibres uses; RH and Imperata cylindrica using concentration of 1.0 M of HCL acid at 90 minutes of stirring time compared with 0.1 M and 0.5 M. The purity of silica extracted for RH is more than 90% however for Imperata cylindrica is more than 80%. All test and analysis results showed that 1.0 M of treated RHA has the highest purity of silica content, crystalline in phase, highest thermal stability, and impact strength and density rather than RH and Imperata cylindrica. 2020-03 Thesis https://ir.uitm.edu.my/id/eprint/53350/ https://ir.uitm.edu.my/id/eprint/53350/1/53350.pdf text en public masters Universiti Teknologi MARA Faculty of Mechanical Engineering Abdullah, Shahrul Azam (Prof. Madya Dr. Ing.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Abdullah, Shahrul Azam (Prof. Madya Dr. Ing.)
topic	Extraction (Chemistry)
spellingShingle	Extraction (Chemistry) Mohd Zarib, Noratiqah Syahirah Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib
description	Rice Husk and Imperata cylindrical (Cl) are natural agriculture waste and abundantly waste that can be used as an effectively resources for production of silica (SiO2). Silica can be apply as an additive for the manufacture of plastics and rubber; as a strengthening filler for concrete and other construction composites. The purpose of this study is to find an alternative way to extract the silica from the natural fibres which are Rice Husk and Imperata cylindrica via acid leaching treatment, due to silica as a raw material that can be contribute in industrial. Acid leaching treatment are carried out to extract the silica and remove metallic impurities in Rice Husk and Imperata cylindrica. Besides, the parameters such as concentration of acids and leaching time using organic and inorganic acid leaching method are also analysed. In this research, the extraction of silica from RH and Imperata cylindrica are done via acid leaching treatment using organic and inorganic reagent known as hydrochloric acid (HCL) and citric acid (C6H8O7). The scope of this research are to analyse the effect of acid treatment, the effect of extraction on stirring time and different solvent used to the yield of silica produced. The performance of this research is covered on several testing which are scanning electron microscopy (SEM)/Energy Dispersive X-ray (EDX) analysis, X-ray diffraction (XRD) spectroscopy analysis and Thermogravimetric Analysis (TGA) and for mechanical properties are Impact testing (ASTM D256) and Tapped Density (ASTM D7481-09) to analyse the samples. As a conclusion, results proved that silica can be extracted from all natural fibres uses; RH and Imperata cylindrica using concentration of 1.0 M of HCL acid at 90 minutes of stirring time compared with 0.1 M and 0.5 M. The purity of silica extracted for RH is more than 90% however for Imperata cylindrica is more than 80%. All test and analysis results showed that 1.0 M of treated RHA has the highest purity of silica content, crystalline in phase, highest thermal stability, and impact strength and density rather than RH and Imperata cylindrica.
format	Thesis
qualification_level	Master's degree
author	Mohd Zarib, Noratiqah Syahirah
author_facet	Mohd Zarib, Noratiqah Syahirah
author_sort	Mohd Zarib, Noratiqah Syahirah
title	Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib
title_short	Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib
title_full	Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib
title_fullStr	Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib
title_full_unstemmed	Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib
title_sort	effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / noratiqah syahirah mohd zarib
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Mechanical Engineering
publishDate	2020
url	https://ir.uitm.edu.my/id/eprint/53350/1/53350.pdf
_version_	1783734865261232128

Effect of concentration on extraction of silica from rice husk, rice husk ash and imperata cylindrica via acid leaching treatment / Noratiqah Syahirah Mohd Zarib

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