Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye

In this study, we investigated the production conditions of Quercus coccifera hydrochar, which is an inexpensive and easy available adsorbent, for the adsorption of Basic Red 18 (BR18) azo dye. The hydrochar was produced in the eco-friendly subcritical water medium (SWM). The effects of the pH (2–10...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mohammed Saleh, Zeynep Bilici, Yasin Ozay, Erdal Yabalak, Mutlu Yalvac, Nadir Dizge
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	azo dye adsorption hydrochar quercus coccifera subcritical water Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/740421c815a146f8ab249c74d090b4a9
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:740421c815a146f8ab249c74d090b4a9
record_format	dspace
spelling	oai:doaj.org-article:740421c815a146f8ab249c74d090b4a92021-11-06T10:42:43ZGreen synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye0273-12231996-973210.2166/wst.2020.607https://doaj.org/article/740421c815a146f8ab249c74d090b4a92021-02-01T00:00:00Zhttp://wst.iwaponline.com/content/83/3/701https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this study, we investigated the production conditions of Quercus coccifera hydrochar, which is an inexpensive and easy available adsorbent, for the adsorption of Basic Red 18 (BR18) azo dye. The hydrochar was produced in the eco-friendly subcritical water medium (SWM). The effects of the pH (2–10), adsorbent size (45–106 μm), adsorbent dose (0.5–1.5 g/L), dye concentration (40–455 mg/L), and contact time (5–120 min) were studied via optimization experiments. The optimum conditions were pH 10, particle size of 45 μm, particle amount of 1.5 g/L, dye concentration of 455 mg/L, and 60 min. The removal efficiency increased sharply for the first 5 min; after that the removal efficiency reached a steady state at 60 min, with a maximum removal of 88.7%. The kinetic studies for the adsorption of BR18 dye in aqueous solution using hydrochar showed pseudo-second-order kinetics. The Langmuir and Freundlich isotherm models were used to explain the relationship between adsorbent and adsorbate, and Freundlich isotherm was the most suitable model because of its high regression coefficient (R2) value. The intraparticle diffusion model was used to determine the adsorption mechanism of BR18 onto Q. coccifera acorn hydrochar. Desorption studies were also carried out using different types of acid and different molarities.Mohammed SalehZeynep BiliciYasin OzayErdal YabalakMutlu YalvacNadir DizgeIWA Publishingarticleazo dye adsorptionhydrocharquercus cocciferasubcritical waterEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 3, Pp 701-714 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	azo dye adsorption hydrochar quercus coccifera subcritical water Environmental technology. Sanitary engineering TD1-1066
spellingShingle	azo dye adsorption hydrochar quercus coccifera subcritical water Environmental technology. Sanitary engineering TD1-1066 Mohammed Saleh Zeynep Bilici Yasin Ozay Erdal Yabalak Mutlu Yalvac Nadir Dizge Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye
description	In this study, we investigated the production conditions of Quercus coccifera hydrochar, which is an inexpensive and easy available adsorbent, for the adsorption of Basic Red 18 (BR18) azo dye. The hydrochar was produced in the eco-friendly subcritical water medium (SWM). The effects of the pH (2–10), adsorbent size (45–106 μm), adsorbent dose (0.5–1.5 g/L), dye concentration (40–455 mg/L), and contact time (5–120 min) were studied via optimization experiments. The optimum conditions were pH 10, particle size of 45 μm, particle amount of 1.5 g/L, dye concentration of 455 mg/L, and 60 min. The removal efficiency increased sharply for the first 5 min; after that the removal efficiency reached a steady state at 60 min, with a maximum removal of 88.7%. The kinetic studies for the adsorption of BR18 dye in aqueous solution using hydrochar showed pseudo-second-order kinetics. The Langmuir and Freundlich isotherm models were used to explain the relationship between adsorbent and adsorbate, and Freundlich isotherm was the most suitable model because of its high regression coefficient (R2) value. The intraparticle diffusion model was used to determine the adsorption mechanism of BR18 onto Q. coccifera acorn hydrochar. Desorption studies were also carried out using different types of acid and different molarities.
format	article
author	Mohammed Saleh Zeynep Bilici Yasin Ozay Erdal Yabalak Mutlu Yalvac Nadir Dizge
author_facet	Mohammed Saleh Zeynep Bilici Yasin Ozay Erdal Yabalak Mutlu Yalvac Nadir Dizge
author_sort	Mohammed Saleh
title	Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye
title_short	Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye
title_full	Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye
title_fullStr	Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye
title_full_unstemmed	Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye
title_sort	green synthesis of quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for br18 dye
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/740421c815a146f8ab249c74d090b4a9
work_keys_str_mv	AT mohammedsaleh greensynthesisofquercuscocciferahydrocharinsubcriticalwatermediumandevaluationofitsadsorptionperformanceforbr18dye AT zeynepbilici greensynthesisofquercuscocciferahydrocharinsubcriticalwatermediumandevaluationofitsadsorptionperformanceforbr18dye AT yasinozay greensynthesisofquercuscocciferahydrocharinsubcriticalwatermediumandevaluationofitsadsorptionperformanceforbr18dye AT erdalyabalak greensynthesisofquercuscocciferahydrocharinsubcriticalwatermediumandevaluationofitsadsorptionperformanceforbr18dye AT mutluyalvac greensynthesisofquercuscocciferahydrocharinsubcriticalwatermediumandevaluationofitsadsorptionperformanceforbr18dye AT nadirdizge greensynthesisofquercuscocciferahydrocharinsubcriticalwatermediumandevaluationofitsadsorptionperformanceforbr18dye
_version_	1718443801927745536

Green synthesis of Quercus coccifera hydrochar in subcritical water medium and evaluation of its adsorption performance for BR18 dye

Ejemplares similares