Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process

Dyes are one of the most important industrial environmental pollutants, and therefore their removal from industrial wastewater is very important. The malachite green is a very toxic dye for the environment and humans, therefore an economical and high-efficiency method to remove this dye from water s...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Reza Abdollahi, Negin Sohrabi, Reza Mohammadi
Formato:	article
Lenguaje:	EN FA
Publicado:	Water and Wastewater Consulting Engineers Research Development 2021
Materias:	activated carbon fe3o4 calcium oxide adsorption malachite green Technology T Water supply for domestic and industrial purposes TD201-500 Sewage collection and disposal systems. Sewerage TD511-780
Acceso en línea:	https://doaj.org/article/5510ffdd82ea4c5b95d3e061e191e7fa
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5510ffdd82ea4c5b95d3e061e191e7fa
record_format	dspace
spelling	oai:doaj.org-article:5510ffdd82ea4c5b95d3e061e191e7fa2021-11-20T08:16:50ZSynthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process1024-59362383-090510.22093/wwj.2021.261219.3091https://doaj.org/article/5510ffdd82ea4c5b95d3e061e191e7fa2021-10-01T00:00:00Zhttp://www.wwjournal.ir/article_136149_b9f711517cec2933c019d69ccec4401a.pdfhttps://doaj.org/toc/1024-5936https://doaj.org/toc/2383-0905Dyes are one of the most important industrial environmental pollutants, and therefore their removal from industrial wastewater is very important. The malachite green is a very toxic dye for the environment and humans, therefore an economical and high-efficiency method to remove this dye from water solutions is necessary. In this study, the removal of malachite green was investigated using a economical and effective adsorbent, in which activated carbon from date kernel was used. Activated carbon from date kernel was modified by Fe3O4 magnetic nanoparticles and calcium oxide. The properties and characteristics of these adsorbents were investigated using FTIR, VSM, TGA, XRD and SEM analyzes. Parameters affecting the adsorption process such as pH, adsorbent dosage, contact time and initial concentration of malachite green were optimized. Equilibrium and kinetic study of adsorption process was performed using common models. The results showed optimal conditions for adsorption of malachite green using the adsorbent are: initial concentration equal to 10 mg/l, pH=7, contact time equal to 20 minutes, adsorbent dose for AC, AC/Fe3O4 and AC/Fe3O4/CaO equal to 3, 3 and 2 g/l, respectively. The Freundlich model also has a higher ability to describe process equilibrium behavior and the pseudo-second-order kinetics model has a good ability to express reaction kinetics. The Langmuir adsorption capacity of malachite green by the AC, AC/Fe3O4 and AC/Fe3O4/CaO was determined to be 50.9 mg/g, 85.7 mg/g and 107.4 mg/g respectively. The desorption and reuse ability of AC/Fe3O4/CaO was investigated up to 8 steps, which showed that the adsorbent has the ability to be reused several times in the adsorption process. The results showed that modification of activated carbon with magnetic Fe3O4 nanoparticles and calcium oxide increases its adsorption efficiency and makes it a suitable adsorbent for commercialization.Reza AbdollahiNegin SohrabiReza MohammadiWater and Wastewater Consulting Engineers Research Developmentarticleactivated carbonfe3o4calcium oxideadsorptionmalachite greenTechnologyTWater supply for domestic and industrial purposesTD201-500Sewage collection and disposal systems. SewerageTD511-780ENFAآب و فاضلاب, Vol 32, Iss 4, Pp 47-66 (2021)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	activated carbon fe3o4 calcium oxide adsorption malachite green Technology T Water supply for domestic and industrial purposes TD201-500 Sewage collection and disposal systems. Sewerage TD511-780
spellingShingle	activated carbon fe3o4 calcium oxide adsorption malachite green Technology T Water supply for domestic and industrial purposes TD201-500 Sewage collection and disposal systems. Sewerage TD511-780 Reza Abdollahi Negin Sohrabi Reza Mohammadi Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process
description	Dyes are one of the most important industrial environmental pollutants, and therefore their removal from industrial wastewater is very important. The malachite green is a very toxic dye for the environment and humans, therefore an economical and high-efficiency method to remove this dye from water solutions is necessary. In this study, the removal of malachite green was investigated using a economical and effective adsorbent, in which activated carbon from date kernel was used. Activated carbon from date kernel was modified by Fe3O4 magnetic nanoparticles and calcium oxide. The properties and characteristics of these adsorbents were investigated using FTIR, VSM, TGA, XRD and SEM analyzes. Parameters affecting the adsorption process such as pH, adsorbent dosage, contact time and initial concentration of malachite green were optimized. Equilibrium and kinetic study of adsorption process was performed using common models. The results showed optimal conditions for adsorption of malachite green using the adsorbent are: initial concentration equal to 10 mg/l, pH=7, contact time equal to 20 minutes, adsorbent dose for AC, AC/Fe3O4 and AC/Fe3O4/CaO equal to 3, 3 and 2 g/l, respectively. The Freundlich model also has a higher ability to describe process equilibrium behavior and the pseudo-second-order kinetics model has a good ability to express reaction kinetics. The Langmuir adsorption capacity of malachite green by the AC, AC/Fe3O4 and AC/Fe3O4/CaO was determined to be 50.9 mg/g, 85.7 mg/g and 107.4 mg/g respectively. The desorption and reuse ability of AC/Fe3O4/CaO was investigated up to 8 steps, which showed that the adsorbent has the ability to be reused several times in the adsorption process. The results showed that modification of activated carbon with magnetic Fe3O4 nanoparticles and calcium oxide increases its adsorption efficiency and makes it a suitable adsorbent for commercialization.
format	article
author	Reza Abdollahi Negin Sohrabi Reza Mohammadi
author_facet	Reza Abdollahi Negin Sohrabi Reza Mohammadi
author_sort	Reza Abdollahi
title	Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process
title_short	Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process
title_full	Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process
title_fullStr	Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process
title_full_unstemmed	Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process
title_sort	synthesis and application of activated carbon magnetic nanocomposite modified by calcium oxide for removal of malachite green dye from aqueous solution: isotherm and kinetic study of adsorption process
publisher	Water and Wastewater Consulting Engineers Research Development
publishDate	2021
url	https://doaj.org/article/5510ffdd82ea4c5b95d3e061e191e7fa
work_keys_str_mv	AT rezaabdollahi synthesisandapplicationofactivatedcarbonmagneticnanocompositemodifiedbycalciumoxideforremovalofmalachitegreendyefromaqueoussolutionisothermandkineticstudyofadsorptionprocess AT neginsohrabi synthesisandapplicationofactivatedcarbonmagneticnanocompositemodifiedbycalciumoxideforremovalofmalachitegreendyefromaqueoussolutionisothermandkineticstudyofadsorptionprocess AT rezamohammadi synthesisandapplicationofactivatedcarbonmagneticnanocompositemodifiedbycalciumoxideforremovalofmalachitegreendyefromaqueoussolutionisothermandkineticstudyofadsorptionprocess
_version_	1718419482528972800

Synthesis and Application of Activated Carbon Magnetic Nanocomposite Modified by Calcium Oxide for Removal of Malachite Green dye from Aqueous Solution: Isotherm and Kinetic Study of Adsorption Process

Ejemplares similares