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Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani

In this study, coconut shell activated carbon (CS-AC) activated by zinc chloride (ZnCl2), utilized as an adsorbent to remove methylene blue (MB) from aqueous solutions. The CS-AC exhibited an acidity value of 5.4 and some functional groups based on Fourier Transform Infrared Spectroscopy, (FTIR) ana...

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Main Author: Mohd Zailani, Muhammad Irfan Danial
Format: Student Project
Language:English
Published: 2024
Subjects:
Flocculation, precipitation, adsorption, etc. Coagulation
Online Access:https://ir.uitm.edu.my/id/eprint/111218/1/111218.pdf
https://ir.uitm.edu.my/id/eprint/111218/
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spelling my.uitm.ir.1112182025-03-07T08:42:39Z https://ir.uitm.edu.my/id/eprint/111218/ Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani Mohd Zailani, Muhammad Irfan Danial Flocculation, precipitation, adsorption, etc. Coagulation In this study, coconut shell activated carbon (CS-AC) activated by zinc chloride (ZnCl2), utilized as an adsorbent to remove methylene blue (MB) from aqueous solutions. The CS-AC exhibited an acidity value of 5.4 and some functional groups based on Fourier Transform Infrared Spectroscopy, (FTIR) analysis. Batch experiments were conducted to investigate the effects of the adsorption parameters, such as adsorbent dosage, initial MB concentration, contact time, initial pH, and temperature. The experimental data were analyzed using Langmuir, Freundlich and Temkin adsorption isotherm models. Based on the correlation coefficient, (R²) results, the Langmuir isotherm model provided the best fit for the adsorption of MB onto CS-AC, with a calculated maximum monolayer adsorption capacity, qmax of 214.53 mg/g. Adsorption kinetics were analyzed using pseudo-first-order (PFO), pseudo-second-order (PSO), and Intraparticle diffusion (IPD) models. The R2 results indicated that the PSO model is more accurately described the adsorption kinetics. The van't Hoffman plot (qt versus t½) indicated multi-linearity, involving multiple steps in the adsorption process. Thermodynamic parameters were determined over the temperature range of 25 to 34°C, resulting in ΔG° value was negative while ΔH° values was positive, indicating a spontaneous and endothermic adsorption process. The positive value of ΔS° suggested increased randomness of MB molecules towards CS-AC. The result from this study indicated that CS-AC as a good adsorbent for the removal of MB and could pave the way for more low-cost adsorbents for dye removal from water and wastewater. 2024-08 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/111218/1/111218.pdf Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani. (2024) [Student Project] (Submitted)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Flocculation, precipitation, adsorption, etc. Coagulation
spellingShingle Flocculation, precipitation, adsorption, etc. Coagulation
Mohd Zailani, Muhammad Irfan Danial
Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani
description In this study, coconut shell activated carbon (CS-AC) activated by zinc chloride (ZnCl2), utilized as an adsorbent to remove methylene blue (MB) from aqueous solutions. The CS-AC exhibited an acidity value of 5.4 and some functional groups based on Fourier Transform Infrared Spectroscopy, (FTIR) analysis. Batch experiments were conducted to investigate the effects of the adsorption parameters, such as adsorbent dosage, initial MB concentration, contact time, initial pH, and temperature. The experimental data were analyzed using Langmuir, Freundlich and Temkin adsorption isotherm models. Based on the correlation coefficient, (R²) results, the Langmuir isotherm model provided the best fit for the adsorption of MB onto CS-AC, with a calculated maximum monolayer adsorption capacity, qmax of 214.53 mg/g. Adsorption kinetics were analyzed using pseudo-first-order (PFO), pseudo-second-order (PSO), and Intraparticle diffusion (IPD) models. The R2 results indicated that the PSO model is more accurately described the adsorption kinetics. The van't Hoffman plot (qt versus t½) indicated multi-linearity, involving multiple steps in the adsorption process. Thermodynamic parameters were determined over the temperature range of 25 to 34°C, resulting in ΔG° value was negative while ΔH° values was positive, indicating a spontaneous and endothermic adsorption process. The positive value of ΔS° suggested increased randomness of MB molecules towards CS-AC. The result from this study indicated that CS-AC as a good adsorbent for the removal of MB and could pave the way for more low-cost adsorbents for dye removal from water and wastewater.
format Student Project
author Mohd Zailani, Muhammad Irfan Danial
author_facet Mohd Zailani, Muhammad Irfan Danial
author_sort Mohd Zailani, Muhammad Irfan Danial
title Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani
title_short Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani
title_full Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani
title_fullStr Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani
title_full_unstemmed Adsorptive removal of methylene blue using activated carbon derived from coconut shell / Muhammad Irfan Danial Mohd Zailani
title_sort adsorptive removal of methylene blue using activated carbon derived from coconut shell / muhammad irfan danial mohd zailani
publishDate 2024
url https://ir.uitm.edu.my/id/eprint/111218/1/111218.pdf
https://ir.uitm.edu.my/id/eprint/111218/
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score 13.244413

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