Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal

Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal

Exposure to lead may cause severe health issues to human and life-beings. Therefore, the purpose of this study was to develop the zeolitic imidazolate framework-8 (ZIF-8) membrane on alumina hollow fiber for lead(II) removal in aqueous system. The first part of this study was to fabricate an alumina...

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Main Author: Awang Chee, Dayang Norafizan
Format: Thesis
Language:English
Published: 2021
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/101615/1/DayangNorafizanAwangPSChE2021.pdf
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spelling my-utm-ep.1016152023-07-03T02:50:06Z Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal 2021 Awang Chee, Dayang Norafizan Q Science (General) Exposure to lead may cause severe health issues to human and life-beings. Therefore, the purpose of this study was to develop the zeolitic imidazolate framework-8 (ZIF-8) membrane on alumina hollow fiber for lead(II) removal in aqueous system. The first part of this study was to fabricate an alumina hollow fiber membrane as the support for the ZIF-8 membrane. The effects of alumina particle size on the morphology of alumina hollow fiber were determined by using several analyses including the porosity, surface roughness and mechanical strength. The performance of all the prepared membranes were determined using cross-flow filtration system. The results indicated that higher loading of fine particles produced alumina hollow fiber membrane with lower porosity and a higher ability to reject protein molecules. Three different preparation techniques were employed to determine the effects of the techniques on the growth of the ZIF-8 layer on the selected alumina support. The techniques include, in situ solvothermal method, combined in situ secondary growth, and layer-by-layer technique. The ZIF-8 membranes were characterized using several techniques including Fourier transform infrared spectrospcopy and X-ray diffractometer. A batch adsorption study was performed to evaluate the adsorption efficiency of the ZIF-8 membranes. Among all of the prepared membranes, the SC48 showed the highest performance for lead(II) adsorption with the ability to remove up to 67% of the lead(II) ions with the adsorption capacity of 115.38 mg/g. The cross-flow filtration test indicated that the SC48 exhibited the highest removal percentage, with the ability to remove up to 90% of lead(II) ions. Additionally, the regeneration study proved the reusability of the ZIF-8 membrane. The optimization study had shown that the optimum condition for removal of lead(II) ions using ZIF-8 membrane was at the initial concentration of 94.00 ppm, pH of 7.15, and operational pressure of 2.0 bar. Experimental test under optimized condition showed that lead(II) removal was at the average of 92.13% and the water permeation of 288.41 Lm-2h-1bar-1. The outcome of this study suggested that the ZIF-8 membrane had shown excellent performance as an adsorptive membrane for lead(II) removal and deserves further in-depth development. 2021 Thesis http://eprints.utm.my/id/eprint/101615/ http://eprints.utm.my/id/eprint/101615/1/DayangNorafizanAwangPSChE2021.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149289 phd doctoral Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering Faculty of Engineering - School of Chemical & Energy Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic Q Science (General)
spellingShingle Q Science (General)
Awang Chee, Dayang Norafizan
Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal
description Exposure to lead may cause severe health issues to human and life-beings. Therefore, the purpose of this study was to develop the zeolitic imidazolate framework-8 (ZIF-8) membrane on alumina hollow fiber for lead(II) removal in aqueous system. The first part of this study was to fabricate an alumina hollow fiber membrane as the support for the ZIF-8 membrane. The effects of alumina particle size on the morphology of alumina hollow fiber were determined by using several analyses including the porosity, surface roughness and mechanical strength. The performance of all the prepared membranes were determined using cross-flow filtration system. The results indicated that higher loading of fine particles produced alumina hollow fiber membrane with lower porosity and a higher ability to reject protein molecules. Three different preparation techniques were employed to determine the effects of the techniques on the growth of the ZIF-8 layer on the selected alumina support. The techniques include, in situ solvothermal method, combined in situ secondary growth, and layer-by-layer technique. The ZIF-8 membranes were characterized using several techniques including Fourier transform infrared spectrospcopy and X-ray diffractometer. A batch adsorption study was performed to evaluate the adsorption efficiency of the ZIF-8 membranes. Among all of the prepared membranes, the SC48 showed the highest performance for lead(II) adsorption with the ability to remove up to 67% of the lead(II) ions with the adsorption capacity of 115.38 mg/g. The cross-flow filtration test indicated that the SC48 exhibited the highest removal percentage, with the ability to remove up to 90% of lead(II) ions. Additionally, the regeneration study proved the reusability of the ZIF-8 membrane. The optimization study had shown that the optimum condition for removal of lead(II) ions using ZIF-8 membrane was at the initial concentration of 94.00 ppm, pH of 7.15, and operational pressure of 2.0 bar. Experimental test under optimized condition showed that lead(II) removal was at the average of 92.13% and the water permeation of 288.41 Lm-2h-1bar-1. The outcome of this study suggested that the ZIF-8 membrane had shown excellent performance as an adsorptive membrane for lead(II) removal and deserves further in-depth development.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Awang Chee, Dayang Norafizan
author_facet Awang Chee, Dayang Norafizan
author_sort Awang Chee, Dayang Norafizan
title Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal
title_short Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal
title_full Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal
title_fullStr Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal
title_full_unstemmed Preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(II) removal
title_sort preparation, characterization and performance of zeolitic imidazolate framework-8 membrane on alumina hollow fiber for lead(ii) removal
granting_institution Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering
granting_department Faculty of Engineering - School of Chemical & Energy Engineering
publishDate 2021
url http://eprints.utm.my/id/eprint/101615/1/DayangNorafizanAwangPSChE2021.pdf
_version_ 1776100738839085056

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