Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies

Activated carbon (AC) is an effective and inexpensive adsorbent material for dye removal, but it cannot always be used repeatedly. Furthermore, the adsorbed dyes with toxicity usually remain on its surface. In this study, a thermal air oxidation process was used to modify the surface of AC and decom...

Descripción completa

Detalles Bibliográficos
Autores principales: Kurnia, Irwan, Karnjanakom, Surachai, Irkham, Irkham, Haryono, Haryono, Situmorang, Yohanes Andre, Indarto, Antonius, Noviyanti, Atiek Rostika, Hartati, Yeni Wahyuni, Guan, Guoqing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9769092/
https://www.ncbi.nlm.nih.gov/pubmed/36605667
http://dx.doi.org/10.1039/d2ra06481b
_version_ 1784854312499806208
author Kurnia, Irwan
Karnjanakom, Surachai
Irkham, Irkham
Haryono, Haryono
Situmorang, Yohanes Andre
Indarto, Antonius
Noviyanti, Atiek Rostika
Hartati, Yeni Wahyuni
Guan, Guoqing
author_facet Kurnia, Irwan
Karnjanakom, Surachai
Irkham, Irkham
Haryono, Haryono
Situmorang, Yohanes Andre
Indarto, Antonius
Noviyanti, Atiek Rostika
Hartati, Yeni Wahyuni
Guan, Guoqing
author_sort Kurnia, Irwan
collection PubMed
description Activated carbon (AC) is an effective and inexpensive adsorbent material for dye removal, but it cannot always be used repeatedly. Furthermore, the adsorbed dyes with toxicity usually remain on its surface. In this study, a thermal air oxidation process was used to modify the surface of AC and decompose adsorbed methylene blue (MB). The behavior of this process on spent AC was investigated using TGA-DTA, while the degradation of MB before and after the regeneration process was analyzed using a carbon, hydrogen, nitrogen, sulfur (CHNS) analyzer. It was discovered that thermal air oxidation could promote the formation of oxygenated functional groups on AC produced from steam-activated carbon coconut shell (SACCS), which when treated at 350 °C (denoted as SACCS-350), demonstrated an adsorption capacity 2.8 times higher than the non-air-oxidized AC (SACCS). The key parameters for the MB adsorption of SACCS and SACCS-350, such as kinetics, equilibrium, and thermodynamics, were compared. Moreover, the SACCS-350 could be reused at least 3 times for the adsorption of MB. Based on these results, thermal air oxidation treatment could successfully improve the adsorption performance of AC and regenerate spent AC through a reasonable and environmentally friendly process compared to other regeneration methods.
format Online
Article
Text
id pubmed-9769092
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-97690922023-01-04 Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies Kurnia, Irwan Karnjanakom, Surachai Irkham, Irkham Haryono, Haryono Situmorang, Yohanes Andre Indarto, Antonius Noviyanti, Atiek Rostika Hartati, Yeni Wahyuni Guan, Guoqing RSC Adv Chemistry Activated carbon (AC) is an effective and inexpensive adsorbent material for dye removal, but it cannot always be used repeatedly. Furthermore, the adsorbed dyes with toxicity usually remain on its surface. In this study, a thermal air oxidation process was used to modify the surface of AC and decompose adsorbed methylene blue (MB). The behavior of this process on spent AC was investigated using TGA-DTA, while the degradation of MB before and after the regeneration process was analyzed using a carbon, hydrogen, nitrogen, sulfur (CHNS) analyzer. It was discovered that thermal air oxidation could promote the formation of oxygenated functional groups on AC produced from steam-activated carbon coconut shell (SACCS), which when treated at 350 °C (denoted as SACCS-350), demonstrated an adsorption capacity 2.8 times higher than the non-air-oxidized AC (SACCS). The key parameters for the MB adsorption of SACCS and SACCS-350, such as kinetics, equilibrium, and thermodynamics, were compared. Moreover, the SACCS-350 could be reused at least 3 times for the adsorption of MB. Based on these results, thermal air oxidation treatment could successfully improve the adsorption performance of AC and regenerate spent AC through a reasonable and environmentally friendly process compared to other regeneration methods. The Royal Society of Chemistry 2022-12-21 /pmc/articles/PMC9769092/ /pubmed/36605667 http://dx.doi.org/10.1039/d2ra06481b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Kurnia, Irwan
Karnjanakom, Surachai
Irkham, Irkham
Haryono, Haryono
Situmorang, Yohanes Andre
Indarto, Antonius
Noviyanti, Atiek Rostika
Hartati, Yeni Wahyuni
Guan, Guoqing
Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
title Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
title_full Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
title_fullStr Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
title_full_unstemmed Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
title_short Enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
title_sort enhanced adsorption capacity of activated carbon over thermal oxidation treatment for methylene blue removal: kinetics, equilibrium, thermodynamic, and reusability studies
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9769092/
https://www.ncbi.nlm.nih.gov/pubmed/36605667
http://dx.doi.org/10.1039/d2ra06481b
work_keys_str_mv AT kurniairwan enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT karnjanakomsurachai enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT irkhamirkham enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT haryonoharyono enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT situmorangyohanesandre enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT indartoantonius enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT noviyantiatiekrostika enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT hartatiyeniwahyuni enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies
AT guanguoqing enhancedadsorptioncapacityofactivatedcarbonoverthermaloxidationtreatmentformethyleneblueremovalkineticsequilibriumthermodynamicandreusabilitystudies