Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin

Janus Particles are non-homogeneous particles composing different functionalities on a single particle. Its unique ability to display diverse properties has attracted various fields of application. Despite the many methods available, synthesis of Janus particles especially in large amount has been a...

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Main Author:	Zainuddin, Rifqah
Format:	Thesis
Language:	English
Published:	2014
Subjects:	Emulsions Palm oil
Online Access:	https://ir.uitm.edu.my/id/eprint/40066/1/40066.pdf
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id	my-uitm-ir.40066
record_format	uketd_dc
spelling	my-uitm-ir.400662022-06-30T01:41:45Z Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin 2014-02 Zainuddin, Rifqah Emulsions Palm oil Janus Particles are non-homogeneous particles composing different functionalities on a single particle. Its unique ability to display diverse properties has attracted various fields of application. Despite the many methods available, synthesis of Janus particles especially in large amount has been a major challenge. One prominent method is via the Pickering emulsion route by employing paraffin wax as the particle immobilizer and to produce the emulsion. However, the preparation of Pickering emulsion is a challenge due to its complex thermodynamics control. In this study, a modified Pickering emulsion route to produce Janus particles using Palm Oil Wax to substitute paraffin wax was investigated. The Janus particles were fabricated from silica nanoparticles of the size 20 - 60 nm and functionalization of the silica particles were carried out using aminopropyl triethoxysilane. The introduced modified Pickering emulsion route used chloroform as a solvent to dissolve the wax instead of the standard heating step for the molten wax preparation. Furthermore the effect of chloroform and silica nanoparticles quantities on the emulsion and resulted Janus particles were investigated. Conducted SEM images on the prepared samples shows that the amount of chloroform and silica nanoparticles influences the quality of the produced Janus particles. The optimized condition was ascertained to be at chloroform to water ratio of 2:8 and silica nanoparticles percentage of 9%. Zeta potential (ZP) analysis on the functionalized silica particles showed the functionalized samples had ZP measurement of less than 15 mV whereas unmodified silica particles had ZP of 30 mV. This verified the success on the Janus particles synthesis because the difference in ZP measurement is attributed by the modified physical character of the functionalized silica particles producing anisotropic colloidal particles. 2014-02 Thesis https://ir.uitm.edu.my/id/eprint/40066/ https://ir.uitm.edu.my/id/eprint/40066/1/40066.pdf text en public degree Universiti Teknologi MARA Faculty of Chemical Engineering A. Mohamed, Salam (Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	A. Mohamed, Salam (Dr.)
topic	Emulsions Palm oil
spellingShingle	Emulsions Palm oil Zainuddin, Rifqah Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin
description	Janus Particles are non-homogeneous particles composing different functionalities on a single particle. Its unique ability to display diverse properties has attracted various fields of application. Despite the many methods available, synthesis of Janus particles especially in large amount has been a major challenge. One prominent method is via the Pickering emulsion route by employing paraffin wax as the particle immobilizer and to produce the emulsion. However, the preparation of Pickering emulsion is a challenge due to its complex thermodynamics control. In this study, a modified Pickering emulsion route to produce Janus particles using Palm Oil Wax to substitute paraffin wax was investigated. The Janus particles were fabricated from silica nanoparticles of the size 20 - 60 nm and functionalization of the silica particles were carried out using aminopropyl triethoxysilane. The introduced modified Pickering emulsion route used chloroform as a solvent to dissolve the wax instead of the standard heating step for the molten wax preparation. Furthermore the effect of chloroform and silica nanoparticles quantities on the emulsion and resulted Janus particles were investigated. Conducted SEM images on the prepared samples shows that the amount of chloroform and silica nanoparticles influences the quality of the produced Janus particles. The optimized condition was ascertained to be at chloroform to water ratio of 2:8 and silica nanoparticles percentage of 9%. Zeta potential (ZP) analysis on the functionalized silica particles showed the functionalized samples had ZP measurement of less than 15 mV whereas unmodified silica particles had ZP of 30 mV. This verified the success on the Janus particles synthesis because the difference in ZP measurement is attributed by the modified physical character of the functionalized silica particles producing anisotropic colloidal particles.
format	Thesis
qualification_level	Bachelor degree
author	Zainuddin, Rifqah
author_facet	Zainuddin, Rifqah
author_sort	Zainuddin, Rifqah
title	Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin
title_short	Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin
title_full	Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin
title_fullStr	Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin
title_full_unstemmed	Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin
title_sort	palm oil wax in modified pickering emulsion for synthesizing janus particles / rifqah zainuddin
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Chemical Engineering
publishDate	2014
url	https://ir.uitm.edu.my/id/eprint/40066/1/40066.pdf
_version_	1783734560009224192

Palm oil wax in modified pickering emulsion for synthesizing janus particles / Rifqah Zainuddin

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