Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed

Recently, many researchers have been focused on enhancing chitosan by using a physicochemical modification for enhancing the surface structure of chitosan and improving its chemical stability in an acidic environment. In this research work, the adsorption of Reactive Red 120 (RR120) in an aqueous so...

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Main Author:	Mohammed, Ibrahim Awad
Format:	Thesis
Language:	English
Published:	2023
Subjects:	TP Chemical technology
Online Access:	https://ir.uitm.edu.my/id/eprint/88679/2/88679.pdf
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id	my-uitm-ir.88679
record_format	uketd_dc
spelling	my-uitm-ir.886792024-07-25T03:49:28Z Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed 2023 Mohammed, Ibrahim Awad TP Chemical technology Recently, many researchers have been focused on enhancing chitosan by using a physicochemical modification for enhancing the surface structure of chitosan and improving its chemical stability in an acidic environment. In this research work, the adsorption of Reactive Red 120 (RR120) in an aqueous solution onto three biocomposite adsorbents was highlighted. These adsorbents were prepared by loading chitosan with different ratios of Fly Ash (FA) and crosslinking using three different organic crosslinking agents namely: Tripolyphosphate (TPP), Ethylene Glycol Diglycidyl Ether (EDGE), and Epichlorohydrin (ECH). Box–Behnken design (BBD) was applied to optimize five experimental parameters including FA loading ratio (A: 050%), adsorbent dose (B: 0.02–0.1 g/100mL), solution pH (C: 4–10), temperature (D: 30 °C–60 °C), and time (E: 20–90 min). Experimental data were analyzed using Langmuir, Freundlich and Temkin isotherm models to evaluate the maximum adsorption capacities of the adsorbents. The composites were characterized using pH point of zero charge (pHPZC), pH-potentiometric titration, elemental analysis, scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, energydispersive X-ray (EDX) spectroscopic techniques and BET surface analysis. The BET surface area of the three adsorbents showed significant increase after the loading of FA particles which improve the accessibility of active adsorption sites for the dye molecules and consequently aid the dye adsorption process. 2023 Thesis https://ir.uitm.edu.my/id/eprint/88679/ https://ir.uitm.edu.my/id/eprint/88679/2/88679.pdf text en public phd doctoral Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences Al-Taie, Ali H. Jawad
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Al-Taie, Ali H. Jawad
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mohammed, Ibrahim Awad Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed
description	Recently, many researchers have been focused on enhancing chitosan by using a physicochemical modification for enhancing the surface structure of chitosan and improving its chemical stability in an acidic environment. In this research work, the adsorption of Reactive Red 120 (RR120) in an aqueous solution onto three biocomposite adsorbents was highlighted. These adsorbents were prepared by loading chitosan with different ratios of Fly Ash (FA) and crosslinking using three different organic crosslinking agents namely: Tripolyphosphate (TPP), Ethylene Glycol Diglycidyl Ether (EDGE), and Epichlorohydrin (ECH). Box–Behnken design (BBD) was applied to optimize five experimental parameters including FA loading ratio (A: 050%), adsorbent dose (B: 0.02–0.1 g/100mL), solution pH (C: 4–10), temperature (D: 30 °C–60 °C), and time (E: 20–90 min). Experimental data were analyzed using Langmuir, Freundlich and Temkin isotherm models to evaluate the maximum adsorption capacities of the adsorbents. The composites were characterized using pH point of zero charge (pHPZC), pH-potentiometric titration, elemental analysis, scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, energydispersive X-ray (EDX) spectroscopic techniques and BET surface analysis. The BET surface area of the three adsorbents showed significant increase after the loading of FA particles which improve the accessibility of active adsorption sites for the dye molecules and consequently aid the dye adsorption process.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Mohammed, Ibrahim Awad
author_facet	Mohammed, Ibrahim Awad
author_sort	Mohammed, Ibrahim Awad
title	Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed
title_short	Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed
title_full	Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed
title_fullStr	Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed
title_full_unstemmed	Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed
title_sort	optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of reactive red 120 dye / ibrahim awad mohammed
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Applied Sciences
publishDate	2023
url	https://ir.uitm.edu.my/id/eprint/88679/2/88679.pdf
_version_	1811768724101791744

Optimization of synthesis and application processes for composite crosslinked chitosan derivatives fly ash for removal of Reactive Red 120 dye / Ibrahim Awad Mohammed

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