Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue

Natural rubber – halloysite nanotubes (NR-HNT) films were prepared by incorporating different weight percentages (10 – 70 wt%) of halloysite nanotubes (HNT) into natural rubber (NR) and were used to adsorb methylene blue (MB). The samples were characterized using attenuated total reflectance fourier...

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Main Author:	Tan, Yee Chien
Format:	Thesis
Language:	English
Published:	2019
Subjects:	QD1-999 Chemistry
Online Access:	http://eprints.usm.my/48333/1/Tan%20Yee%20Chien%20Msc%20cut.pdf
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id	my-usm-ep.48333
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spelling	my-usm-ep.483332021-02-17T09:21:00Z Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue 2019-05 Tan, Yee Chien QD1-999 Chemistry Natural rubber – halloysite nanotubes (NR-HNT) films were prepared by incorporating different weight percentages (10 – 70 wt%) of halloysite nanotubes (HNT) into natural rubber (NR) and were used to adsorb methylene blue (MB). The samples were characterized using attenuated total reflectance fourier transform infrared spectroscopy (ATR-FTIR), x-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and point of zero charge (pzc). It was found that at lower wt%, the HNT was well-dispersed. When the wt% of HNT was increased, it made it harder to be dispersed and caused aggregation of the HNT, which affected the thermal properties of the NR. MB adsorption studies were carried out to investigate the ability of the samples to adsorb dye. Different parameters such as the wt% of HNT, initial concentration of MB, pH, adsorbent dosage and temperature were studied to determine the optimum conditions for the adsorption of MB by the NR-HNT films. The results showed that one film of 10 wt% NR-HNT (approximately 2.3 x 2.6 cm) has the best ability to adsorb dye in aqueous solution with the initial concentration of MB = 16 mg L-1 at pH 9.7 and at 39 ˚C. The adsorption kinetics and isotherms were also investigated to further understand these results. It was found that the experimental data are successfully fitted into type 1 pseudo second-order kinetic model. The NR and 50 wt% NR-HNT best fit Temkin isotherm while the 10 wt% NR-HNT fits Langmuir isotherm. 2019-05 Thesis http://eprints.usm.my/48333/ http://eprints.usm.my/48333/1/Tan%20Yee%20Chien%20Msc%20cut.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Kimia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QD1-999 Chemistry
spellingShingle	QD1-999 Chemistry Tan, Yee Chien Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue
description	Natural rubber – halloysite nanotubes (NR-HNT) films were prepared by incorporating different weight percentages (10 – 70 wt%) of halloysite nanotubes (HNT) into natural rubber (NR) and were used to adsorb methylene blue (MB). The samples were characterized using attenuated total reflectance fourier transform infrared spectroscopy (ATR-FTIR), x-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and point of zero charge (pzc). It was found that at lower wt%, the HNT was well-dispersed. When the wt% of HNT was increased, it made it harder to be dispersed and caused aggregation of the HNT, which affected the thermal properties of the NR. MB adsorption studies were carried out to investigate the ability of the samples to adsorb dye. Different parameters such as the wt% of HNT, initial concentration of MB, pH, adsorbent dosage and temperature were studied to determine the optimum conditions for the adsorption of MB by the NR-HNT films. The results showed that one film of 10 wt% NR-HNT (approximately 2.3 x 2.6 cm) has the best ability to adsorb dye in aqueous solution with the initial concentration of MB = 16 mg L-1 at pH 9.7 and at 39 ˚C. The adsorption kinetics and isotherms were also investigated to further understand these results. It was found that the experimental data are successfully fitted into type 1 pseudo second-order kinetic model. The NR and 50 wt% NR-HNT best fit Temkin isotherm while the 10 wt% NR-HNT fits Langmuir isotherm.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Tan, Yee Chien
author_facet	Tan, Yee Chien
author_sort	Tan, Yee Chien
title	Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue
title_short	Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue
title_full	Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue
title_fullStr	Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue
title_full_unstemmed	Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue
title_sort	study on the characteristics and adsorption behavior of natural rubber – halloysite nanotubes films towards methylene blue
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kimia
publishDate	2019
url	http://eprints.usm.my/48333/1/Tan%20Yee%20Chien%20Msc%20cut.pdf
_version_	1747821920643973120

Study On The Characteristics And Adsorption Behavior Of Natural Rubber – Halloysite Nanotubes Films Towards Methylene Blue

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