DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL

Fly ash-based geopolymer synthesized by reacting fly ash with an alkaline activator has a potential for membrane application due to its high mechanical strength, easy synthesis and low cost. In this research, a new fly ash-based geopolymer (FAGP) membrane was successfully synthesized and the effects...

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Main Author: AHMAD DAUD, NURUL AMIRA
Format: Thesis
Language: English
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-utpedia.22790 /
Published: 2021
Subjects:
TP Chemical technology
Online Access: http://utpedia.utp.edu.my/22790/1/Nurul%20Amira%20Ahmad%20Daud_16002215.pdf
http://utpedia.utp.edu.my/22790/
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spelling utp-utpedia.227902022-02-27T04:31:30Z http://utpedia.utp.edu.my/22790/ DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL AHMAD DAUD, NURUL AMIRA TP Chemical technology Fly ash-based geopolymer synthesized by reacting fly ash with an alkaline activator has a potential for membrane application due to its high mechanical strength, easy synthesis and low cost. In this research, a new fly ash-based geopolymer (FAGP) membrane was successfully synthesized and the effects of the forming agent, alkaline activator and Si/Al ratio on its membrane application were investigated. The morphology, pore structure and functional groups FAGPs were characterized using field-emission scanning electron microscopy (FESEM), Brunauer- Emmett-Teller (BET) analysis and Fourier Transform Infrared spectroscopy (FTIR) respectively. Based on the FESEM results, the membrane with 5.0 wt% egg white and 0.6 wt% of H2O2 (GE5) showed homogenous and interconnected porosity, and based on the BET result, the pore sizes of the membrane increased from 11.49 nm (GE0) to 19.60 nm (GE5). Performance analysis on methylene blue dye removal in an aqueous solution revealed that GE0-GE5 gave a significantly high removal R>90% with the highest permeation rate of 15 L/m2. h. for GE5. At the best removal condition, the final concentration of dye was recorded at 30 ppm which is below the Standard B discharge limit. Meanwhile, the mechanical properties of the modified FAGP membrane was studied through flexural strength test by varying the concentrations of sodium hydroxide (NaOH) which are 4M-12M, and Si/Al ratios at 1.86/1, 2.2/1 and 2.3/1. The optimum NaOH concentration was found to be at 10M, meanwhile Si/Al ratio of 2.3/1 resulted in a significant increase to the strength of the geopolymer membrane. Thus, geopolymer membranes derived from fly ash was proven effective for dye removal. Future works are still needed to obtain optimal FAGP to achieve targeted industrial applications. 2021-09 Thesis NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/22790/1/Nurul%20Amira%20Ahmad%20Daud_16002215.pdf AHMAD DAUD, NURUL AMIRA (2021) DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL. Masters thesis, Universiti Teknologi PETRONAS.
institution Universiti Teknologi Petronas
collection UTPedia
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
AHMAD DAUD, NURUL AMIRA
DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL
description Fly ash-based geopolymer synthesized by reacting fly ash with an alkaline activator has a potential for membrane application due to its high mechanical strength, easy synthesis and low cost. In this research, a new fly ash-based geopolymer (FAGP) membrane was successfully synthesized and the effects of the forming agent, alkaline activator and Si/Al ratio on its membrane application were investigated. The morphology, pore structure and functional groups FAGPs were characterized using field-emission scanning electron microscopy (FESEM), Brunauer- Emmett-Teller (BET) analysis and Fourier Transform Infrared spectroscopy (FTIR) respectively. Based on the FESEM results, the membrane with 5.0 wt% egg white and 0.6 wt% of H2O2 (GE5) showed homogenous and interconnected porosity, and based on the BET result, the pore sizes of the membrane increased from 11.49 nm (GE0) to 19.60 nm (GE5). Performance analysis on methylene blue dye removal in an aqueous solution revealed that GE0-GE5 gave a significantly high removal R>90% with the highest permeation rate of 15 L/m2. h. for GE5. At the best removal condition, the final concentration of dye was recorded at 30 ppm which is below the Standard B discharge limit. Meanwhile, the mechanical properties of the modified FAGP membrane was studied through flexural strength test by varying the concentrations of sodium hydroxide (NaOH) which are 4M-12M, and Si/Al ratios at 1.86/1, 2.2/1 and 2.3/1. The optimum NaOH concentration was found to be at 10M, meanwhile Si/Al ratio of 2.3/1 resulted in a significant increase to the strength of the geopolymer membrane. Thus, geopolymer membranes derived from fly ash was proven effective for dye removal. Future works are still needed to obtain optimal FAGP to achieve targeted industrial applications.
format Thesis
author AHMAD DAUD, NURUL AMIRA
author_sort AHMAD DAUD, NURUL AMIRA
title DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL
title_short DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL
title_full DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL
title_fullStr DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL
title_full_unstemmed DEVELOPMENT OF FLY ASH-BASED GEOPOLYMER MEMBRANE FOR METHYLENE BLUE DYE REMOVAL
title_sort development of fly ash-based geopolymer membrane for methylene blue dye removal
publishDate 2021
url http://utpedia.utp.edu.my/22790/1/Nurul%20Amira%20Ahmad%20Daud_16002215.pdf
http://utpedia.utp.edu.my/22790/
_version_ 1741195864593924096
score 11.62408

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