Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum

Harmful Algal Bloom (HAB) has been a growing issue worldwide for the past few decades, posing harm to aquatic ecosystems and drinking water quality. This phenomenon must be mitigated using a proper mitigation agent to reduce the negative impact. Herein, the research investigates the feasibility o...

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Main Author:	Ibrahim Syed Ali, Nur Hanisah
Format:	Thesis
Language:	English
Published:	2022
Subjects:	QD1-999 Chemistry
Online Access:	http://eprints.usm.my/60101/1/24%20Pages%20from%20NUR%20HANISAH%20BINTI%20IBRAHIM%20SYED%20ALI.pdf
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spelling	my-usm-ep.601012024-03-11T03:56:02Z Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum 2022-11 Ibrahim Syed Ali, Nur Hanisah QD1-999 Chemistry Harmful Algal Bloom (HAB) has been a growing issue worldwide for the past few decades, posing harm to aquatic ecosystems and drinking water quality. This phenomenon must be mitigated using a proper mitigation agent to reduce the negative impact. Herein, the research investigates the feasibility of a chitosan film (CH), hybrid chitosan/silica film (CH/SiO2) a with the addition of glycerol (CH/SiO2/gly) and (3-glycidyloxypropyl)trimethoxysilane (CH/SiO2/GPTEOS), and hybrid chitosan/TiO2 films were prepared via a one-pot synthesis method and characterised to mitigate toxic algae cells, Alexandrium minutum. The XRD pattern of the CH film confirms the peak related to the crystallographic planes (002), (101) and (220) of chitosan at 2θ= 10.1°, 19.8° and 22°, respectively. The XRD peaks appear broader after crosslinking with SiO2, glycerol and GPTEOS, indicating an increase in the polymer's amorphous nature, while the addition of TiO2 caused the peak of chitosan became weak and broaden after the incorporation. The films' TGA analysis shows that the film's weight loss reduces after the incorporation of SiO2, glycerol, GPTEOS and TiO2. In addition, the UV-vis spectra revealed that the films has an absorption innd at the UV region. All the films were subjected to the mitigation of Alexandium minutum. Among all the films, CH/0.2TiO2 (1 mL) gave a higher removal efficiency 76.1± 13.83 % at 72 hrs. 2022-11 Thesis http://eprints.usm.my/60101/ http://eprints.usm.my/60101/1/24%20Pages%20from%20NUR%20HANISAH%20BINTI%20IBRAHIM%20SYED%20ALI.pdf application/pdf en public masters Perpustakaan Hamzah Sendut Pusat Pengajian Sains Kimia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QD1-999 Chemistry
spellingShingle	QD1-999 Chemistry Ibrahim Syed Ali, Nur Hanisah Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum
description	Harmful Algal Bloom (HAB) has been a growing issue worldwide for the past few decades, posing harm to aquatic ecosystems and drinking water quality. This phenomenon must be mitigated using a proper mitigation agent to reduce the negative impact. Herein, the research investigates the feasibility of a chitosan film (CH), hybrid chitosan/silica film (CH/SiO2) a with the addition of glycerol (CH/SiO2/gly) and (3-glycidyloxypropyl)trimethoxysilane (CH/SiO2/GPTEOS), and hybrid chitosan/TiO2 films were prepared via a one-pot synthesis method and characterised to mitigate toxic algae cells, Alexandrium minutum. The XRD pattern of the CH film confirms the peak related to the crystallographic planes (002), (101) and (220) of chitosan at 2θ= 10.1°, 19.8° and 22°, respectively. The XRD peaks appear broader after crosslinking with SiO2, glycerol and GPTEOS, indicating an increase in the polymer's amorphous nature, while the addition of TiO2 caused the peak of chitosan became weak and broaden after the incorporation. The films' TGA analysis shows that the film's weight loss reduces after the incorporation of SiO2, glycerol, GPTEOS and TiO2. In addition, the UV-vis spectra revealed that the films has an absorption innd at the UV region. All the films were subjected to the mitigation of Alexandium minutum. Among all the films, CH/0.2TiO2 (1 mL) gave a higher removal efficiency 76.1± 13.83 % at 72 hrs.
format	Thesis
qualification_level	Master's degree
author	Ibrahim Syed Ali, Nur Hanisah
author_facet	Ibrahim Syed Ali, Nur Hanisah
author_sort	Ibrahim Syed Ali, Nur Hanisah
title	Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum
title_short	Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum
title_full	Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum
title_fullStr	Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum
title_full_unstemmed	Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum
title_sort	preparation and characterisation of hybrid chitosan films for the mitigation of alexandrium minutum
granting_institution	Perpustakaan Hamzah Sendut
granting_department	Pusat Pengajian Sains Kimia
publishDate	2022
url	http://eprints.usm.my/60101/1/24%20Pages%20from%20NUR%20HANISAH%20BINTI%20IBRAHIM%20SYED%20ALI.pdf
_version_	1794024090588151808

Preparation And Characterisation Of Hybrid Chitosan Films For The Mitigation Of Alexandrium Minutum

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