Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst

The research described in this dissertation is a comprehensive account of an attempt, for the first time, correlates the secondary pores structural and physicochemical properties of polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film with its adsorption and catalyti...

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Main Author:	Wibowa, Pratama Jujur
Format:	Thesis
Language:	English English English
Published:	2015
Subjects:	QC170-197 Atomic physics Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
Online Access:	http://eprints.uthm.edu.my/1614/2/PRATAMA%20JUJUR%20WIBOWA%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1614/1/24p%20PRATAMA%20JUJUR%20WIBOWA.pdf http://eprints.uthm.edu.my/1614/3/PRATAMA%20JUJUR%20WIBOWA%20WATERMARK.pdf
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spelling	my-uthm-ep.16142021-10-04T01:03:33Z Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst 2015-05 Wibowa, Pratama Jujur QC170-197 Atomic physics. Constitution and properties of matter. Including molecular physics, relativity, quantum theory, and solid state physics The research described in this dissertation is a comprehensive account of an attempt, for the first time, correlates the secondary pores structural and physicochemical properties of polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film with its adsorption and catalytic properties. The PSNs/CdMNPs composites were fabricated on a hydrophilic silicon wafer through self-assembly process from its aqueous colloidal. The existence of secondary pores and atomic particles of cadmium were clarified by using a field emission scanning electron microscopy (FESEM) and an energy dispersive X–ray (EDX) spectroscopy, respectively. Physical and chemical physical stability of the secondary pores were tested toward continuous laser irradiation of 633 nm wavelength and oxygen/argon reactive ion etching (O2/Ar RIE), respectively. Thermal catalytic effect of CdMNPs was investigated through thermogravimetry/differential thermal analysis (TG/DTA). Any chemical bond change of the PSNs/CdMNPs composite due to both CdMNPs and adsorbate molecules were confirmed by using an attenuated total reflectance–Fourier transform infrared (ATR–FTIR) spectroscopy. The capability of adsorption and catalysis of the secondary pores were clarified to adsorb and degrade tartazine as a model compound. It was found that the fabricated secondary pores were composed of dumbbell-like nanostructure with >100 nm pores in size had better adsorption capability than other adsorbents. It was demonstrated that the Freundlich constants ratio expressed as KF/n was 1.715 104. This value is much higher than previously reported for coconut shell activated carbon (CSAC), i.e. 0.158 and commercial activated carbon (CAC), i.e. 0.403. The rate of catalytic degradation of tartrazine on secondary pores was 0.718 μmol min–1 and a good agreement with pseudo first–order kinetics. Nanostructures of the secondary pores of PSNs/CdMNPs were not significantly changed under 633 nm continuous laser irradiation for 20 minutes as well as under O2/Argon RIE (30 sccm argon flow rate, 15 sccm oxygen flow rate, 20 seconds) suggesting a strong structural integrity of the secondary pores. Based on these results, it was concluded that PSNs/CdMNPs composites thin film secondary pores showed the adsorption and catalytic capabilities and is considered a potential adsorbent and catalyst. 2015-05 Thesis http://eprints.uthm.edu.my/1614/ http://eprints.uthm.edu.my/1614/2/PRATAMA%20JUJUR%20WIBOWA%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1614/1/24p%20PRATAMA%20JUJUR%20WIBOWA.pdf text en public http://eprints.uthm.edu.my/1614/3/PRATAMA%20JUJUR%20WIBOWA%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Faculty of Science, Technology and Human Development
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	QC170-197 Atomic physics Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
spellingShingle	QC170-197 Atomic physics Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics Wibowa, Pratama Jujur Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst
description	The research described in this dissertation is a comprehensive account of an attempt, for the first time, correlates the secondary pores structural and physicochemical properties of polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film with its adsorption and catalytic properties. The PSNs/CdMNPs composites were fabricated on a hydrophilic silicon wafer through self-assembly process from its aqueous colloidal. The existence of secondary pores and atomic particles of cadmium were clarified by using a field emission scanning electron microscopy (FESEM) and an energy dispersive X–ray (EDX) spectroscopy, respectively. Physical and chemical physical stability of the secondary pores were tested toward continuous laser irradiation of 633 nm wavelength and oxygen/argon reactive ion etching (O2/Ar RIE), respectively. Thermal catalytic effect of CdMNPs was investigated through thermogravimetry/differential thermal analysis (TG/DTA). Any chemical bond change of the PSNs/CdMNPs composite due to both CdMNPs and adsorbate molecules were confirmed by using an attenuated total reflectance–Fourier transform infrared (ATR–FTIR) spectroscopy. The capability of adsorption and catalysis of the secondary pores were clarified to adsorb and degrade tartazine as a model compound. It was found that the fabricated secondary pores were composed of dumbbell-like nanostructure with >100 nm pores in size had better adsorption capability than other adsorbents. It was demonstrated that the Freundlich constants ratio expressed as KF/n was 1.715 104. This value is much higher than previously reported for coconut shell activated carbon (CSAC), i.e. 0.158 and commercial activated carbon (CAC), i.e. 0.403. The rate of catalytic degradation of tartrazine on secondary pores was 0.718 μmol min–1 and a good agreement with pseudo first–order kinetics. Nanostructures of the secondary pores of PSNs/CdMNPs were not significantly changed under 633 nm continuous laser irradiation for 20 minutes as well as under O2/Argon RIE (30 sccm argon flow rate, 15 sccm oxygen flow rate, 20 seconds) suggesting a strong structural integrity of the secondary pores. Based on these results, it was concluded that PSNs/CdMNPs composites thin film secondary pores showed the adsorption and catalytic capabilities and is considered a potential adsorbent and catalyst.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Wibowa, Pratama Jujur
author_facet	Wibowa, Pratama Jujur
author_sort	Wibowa, Pratama Jujur
title	Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst
title_short	Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst
title_full	Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst
title_fullStr	Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst
title_full_unstemmed	Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst
title_sort	synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (psns/cdmnps) composite thin film for its application as adsorbent and catalyst
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Science, Technology and Human Development
publishDate	2015
url	http://eprints.uthm.edu.my/1614/2/PRATAMA%20JUJUR%20WIBOWA%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1614/1/24p%20PRATAMA%20JUJUR%20WIBOWA.pdf http://eprints.uthm.edu.my/1614/3/PRATAMA%20JUJUR%20WIBOWA%20WATERMARK.pdf
_version_	1747830829708476416

Synthesis of self-assembled polystyrene nanospheres/cadmium metal nanoparticles (PSNs/CdMNPs) composite thin film for its application as adsorbent and catalyst

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