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Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal

Spent Calgon Filtrasorb activated carbon (SAC) from glycerine deodorization unit was evaluated for the removal of methylene blue (MB). The SAC was used without further modification. The SAC was characterized for BET surface area, pH, pHpzc and FTIR to determine the textural and chemical properties o...

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Main Authors: Tang, Shu Hui, Ahmad Zaini, Muhammad Abbas
Format: Article
Published: Springer 2021
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TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/95928/
http://dx.doi.org/10.1007/s42823-020-00189-z
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spelling my.utm.959282022-06-29T08:29:13Z http://eprints.utm.my/id/eprint/95928/ Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal Tang, Shu Hui Ahmad Zaini, Muhammad Abbas TP Chemical technology Spent Calgon Filtrasorb activated carbon (SAC) from glycerine deodorization unit was evaluated for the removal of methylene blue (MB). The SAC was used without further modification. The SAC was characterized for BET surface area, pH, pHpzc and FTIR to determine the textural and chemical properties of SAC. The batch adsorption study of MB was carried out under different initial concentrations (5–500 mg/L), pH (2–11) and contact time (0–200 h). The SAC was found to have high BET surface area, pore volume and average pore diameter of 735 m2/g, 0.292 cm3/g and 2.56 nm, respectively. The properties of SAC contributed to high MB adsorption capacity of 283 mg/g. The equilibrium data fitted well with Langmuir model, indicating monolayer adsorption; while the activation energy (Ea) of Dubinin–Radushkevitch (D–R) model is lower than 8 kJ/mol, signifying physisorption. The adsorption kinetics was best illustrated by pseudo-second-order model, while the intraparticle diffusion and Boyd models suggested that film diffusion is the rate-controlling step. These findings showed that Calgon Filtrasorb SAC from glycerine deodorization unit can be potentially reused an adsorbent for the removal of dyes. Springer 2021 Article PeerReviewed Tang, Shu Hui and Ahmad Zaini, Muhammad Abbas (2021) Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal. Carbon Letters, 31 (4). pp. 721-728. ISSN 1976-4251 http://dx.doi.org/10.1007/s42823-020-00189-z
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Tang, Shu Hui
Ahmad Zaini, Muhammad Abbas
Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
description Spent Calgon Filtrasorb activated carbon (SAC) from glycerine deodorization unit was evaluated for the removal of methylene blue (MB). The SAC was used without further modification. The SAC was characterized for BET surface area, pH, pHpzc and FTIR to determine the textural and chemical properties of SAC. The batch adsorption study of MB was carried out under different initial concentrations (5–500 mg/L), pH (2–11) and contact time (0–200 h). The SAC was found to have high BET surface area, pore volume and average pore diameter of 735 m2/g, 0.292 cm3/g and 2.56 nm, respectively. The properties of SAC contributed to high MB adsorption capacity of 283 mg/g. The equilibrium data fitted well with Langmuir model, indicating monolayer adsorption; while the activation energy (Ea) of Dubinin–Radushkevitch (D–R) model is lower than 8 kJ/mol, signifying physisorption. The adsorption kinetics was best illustrated by pseudo-second-order model, while the intraparticle diffusion and Boyd models suggested that film diffusion is the rate-controlling step. These findings showed that Calgon Filtrasorb SAC from glycerine deodorization unit can be potentially reused an adsorbent for the removal of dyes.
format Article
author Tang, Shu Hui
Ahmad Zaini, Muhammad Abbas
author_facet Tang, Shu Hui
Ahmad Zaini, Muhammad Abbas
author_sort Tang, Shu Hui
title Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
title_short Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
title_full Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
title_fullStr Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
title_full_unstemmed Valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
title_sort valorization of spent activated carbon in glycerine deodorization unit for methylene blue removal
publisher Springer
publishDate 2021
url http://eprints.utm.my/id/eprint/95928/
http://dx.doi.org/10.1007/s42823-020-00189-z
_version_ 1738510300747923456
score 13.211869

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