Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal

In this study, a mesoporous carbon (CMK-3) was successfully synthesized using mesoporous silica (SBA-15) prepared from gold mine tailings (sample CGMT) for removal of anionic dye from aqueous solution. For comparison, CMK-3 was prepared by the same method from pure silica (sample CT), and the other...

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Autores principales:	Suheyl Erturk, Muge Sari Yilmaz, Sabriye Piskin
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	cmk-3 dye adsorption gold mine tailings low-cost adsorbent recycling waste Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/874dd414fb7c42c58ebc64d7862b0891
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spelling	oai:doaj.org-article:874dd414fb7c42c58ebc64d7862b08912021-11-06T10:52:21ZPotential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal0273-12231996-973210.2166/wst.2021.052https://doaj.org/article/874dd414fb7c42c58ebc64d7862b08912021-03-01T00:00:00Zhttp://wst.iwaponline.com/content/83/6/1300https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this study, a mesoporous carbon (CMK-3) was successfully synthesized using mesoporous silica (SBA-15) prepared from gold mine tailings (sample CGMT) for removal of anionic dye from aqueous solution. For comparison, CMK-3 was prepared by the same method from pure silica (sample CT), and the other CMK-3 sample was prepared by a one-pot route mixing with Pluronic P123 (sample CP). The effect of the carbonization time on the synthesis of all CMK-3 samples was investigated, and the samples were characterized by X-ray diffraction and N2 adsorption–desorption. The sample with the highest surface area was chosen as an adsorbent, for each CMK-3 obtained from different methods. Batch adsorption experiments were studied to determine the influence of pH, contact time, and initial dye concentration. The adsorption kinetics obeyed the pseudo-second-order model. All carbon-based adsorbents were observed to be quite effective for the removal of dye with adsorption percentage in the order of CP > CT > CGMT. The maximum adsorption capacities were 188.99 and 204.57 mg·g−1 for CT and CGMT, respectively. The comparative results of all carbon-based adsorbents show that CGMT can be applied as a low-cost alternative to CT for dye removal. HIGHLIGHTS CMK-3 was synthesized from gold mine waste (CGMT) for the first time.; The usage of CGMT as low-cost adsorbent for the removal of dye was investigated.; For comparison, other adsorbents synthesized from different methods were investigated as an adsorbent in the dye adsorption.; The specific surface area, pore volume and pore size dominate the adsorption capacity.; CGMT can be applied as a novel, low-cost and alternative adsorbent for dye removal.;Suheyl ErturkMuge Sari YilmazSabriye PiskinIWA Publishingarticlecmk-3dye adsorptiongold mine tailingslow-cost adsorbentrecycling wasteEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 6, Pp 1300-1314 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cmk-3 dye adsorption gold mine tailings low-cost adsorbent recycling waste Environmental technology. Sanitary engineering TD1-1066
spellingShingle	cmk-3 dye adsorption gold mine tailings low-cost adsorbent recycling waste Environmental technology. Sanitary engineering TD1-1066 Suheyl Erturk Muge Sari Yilmaz Sabriye Piskin Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
description	In this study, a mesoporous carbon (CMK-3) was successfully synthesized using mesoporous silica (SBA-15) prepared from gold mine tailings (sample CGMT) for removal of anionic dye from aqueous solution. For comparison, CMK-3 was prepared by the same method from pure silica (sample CT), and the other CMK-3 sample was prepared by a one-pot route mixing with Pluronic P123 (sample CP). The effect of the carbonization time on the synthesis of all CMK-3 samples was investigated, and the samples were characterized by X-ray diffraction and N2 adsorption–desorption. The sample with the highest surface area was chosen as an adsorbent, for each CMK-3 obtained from different methods. Batch adsorption experiments were studied to determine the influence of pH, contact time, and initial dye concentration. The adsorption kinetics obeyed the pseudo-second-order model. All carbon-based adsorbents were observed to be quite effective for the removal of dye with adsorption percentage in the order of CP > CT > CGMT. The maximum adsorption capacities were 188.99 and 204.57 mg·g−1 for CT and CGMT, respectively. The comparative results of all carbon-based adsorbents show that CGMT can be applied as a low-cost alternative to CT for dye removal. HIGHLIGHTS CMK-3 was synthesized from gold mine waste (CGMT) for the first time.; The usage of CGMT as low-cost adsorbent for the removal of dye was investigated.; For comparison, other adsorbents synthesized from different methods were investigated as an adsorbent in the dye adsorption.; The specific surface area, pore volume and pore size dominate the adsorption capacity.; CGMT can be applied as a novel, low-cost and alternative adsorbent for dye removal.;
format	article
author	Suheyl Erturk Muge Sari Yilmaz Sabriye Piskin
author_facet	Suheyl Erturk Muge Sari Yilmaz Sabriye Piskin
author_sort	Suheyl Erturk
title	Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
title_short	Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
title_full	Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
title_fullStr	Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
title_full_unstemmed	Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
title_sort	potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/874dd414fb7c42c58ebc64d7862b0891
work_keys_str_mv	AT suheylerturk potentiallowcostcarbonbasedadsorbentfromgoldminetailingsforanionicdyeremoval AT mugesariyilmaz potentiallowcostcarbonbasedadsorbentfromgoldminetailingsforanionicdyeremoval AT sabriyepiskin potentiallowcostcarbonbasedadsorbentfromgoldminetailingsforanionicdyeremoval
_version_	1718443743379456000

Potential low-cost carbon-based adsorbent from gold mine tailings for anionic dye removal

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