Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal

A cost-effective approach was applied to prepare porous carbon samples by the simple carbonization of wormwood rod followed by salt activator (NaCl) activation. The effect of preparation parameters on the characteristics of the wormwood rod-based porous carbons (WWRs) were studied. The properties of...

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Autores principales:	Shuhui Wang, Yu Huang, Yiting Wu, Xinyu Zhang, Liu Wan, Xiang Liu, Wanju Zhang
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	absorption methyl orange porous carbon wormwood rod Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/32f2a3e2ea9841eda5ac5be099645298
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spelling	oai:doaj.org-article:32f2a3e2ea9841eda5ac5be0996452982021-11-23T18:41:09ZRe-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal0273-12231996-973210.2166/wst.2021.453https://doaj.org/article/32f2a3e2ea9841eda5ac5be0996452982021-11-01T00:00:00Zhttp://wst.iwaponline.com/content/84/9/2601https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732A cost-effective approach was applied to prepare porous carbon samples by the simple carbonization of wormwood rod followed by salt activator (NaCl) activation. The effect of preparation parameters on the characteristics of the wormwood rod-based porous carbons (WWRs) were studied. The properties of these samples were investigated by SEM, BET surface area, X-ray diffraction, FT-IR spectra and X-ray photoelectron spectrometer. The prepared WWRs were applied as new adsorbent materials to remove methyl orange (MO). The experimental results indicated that WWR-800 activated at 800 °C possesses the best adsorption performance. Several factors that affected the adsorption property of the system such as the solution pH, dosing of adsorbent, initial dye concentration and ionic strength were examined. In addition, the thermodynamic parameters and kinetic parameters of MO with WWR-800 were studied. The results indicated that the adsorption of MO on WWR-800 was an endothermic process and non-spontaneous under standard conditions. The maximum equilibrium adsorption capacity of MO on WWR-800 was 454.55 mg/g. After five adsorption/desorption cycles, the adsorption capacity of MO on WWR-800 remained at 94%, which indicated that wormwood rod-based porous carbon possessed good reusability. HIGHLIGHTS Porous carbon (WWR-800) was synthesized from waste wormwood rod by NaCl activation.; The factors that affected the adsorption property of methyl orange on WWR-800 were systematically explored.; WWR-800 followed the Langmuir model for methyl orange dye.; The adsorption of MO on WWR-800 was endothermic and non-spontaneous under standard conditions.; WWR-800 provided good reusability and stability for adsorption.;Shuhui WangYu HuangYiting WuXinyu ZhangLiu WanXiang LiuWanju ZhangIWA Publishingarticleabsorptionmethyl orangeporous carbonwormwood rodEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 9, Pp 2601-2614 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	absorption methyl orange porous carbon wormwood rod Environmental technology. Sanitary engineering TD1-1066
spellingShingle	absorption methyl orange porous carbon wormwood rod Environmental technology. Sanitary engineering TD1-1066 Shuhui Wang Yu Huang Yiting Wu Xinyu Zhang Liu Wan Xiang Liu Wanju Zhang Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
description	A cost-effective approach was applied to prepare porous carbon samples by the simple carbonization of wormwood rod followed by salt activator (NaCl) activation. The effect of preparation parameters on the characteristics of the wormwood rod-based porous carbons (WWRs) were studied. The properties of these samples were investigated by SEM, BET surface area, X-ray diffraction, FT-IR spectra and X-ray photoelectron spectrometer. The prepared WWRs were applied as new adsorbent materials to remove methyl orange (MO). The experimental results indicated that WWR-800 activated at 800 °C possesses the best adsorption performance. Several factors that affected the adsorption property of the system such as the solution pH, dosing of adsorbent, initial dye concentration and ionic strength were examined. In addition, the thermodynamic parameters and kinetic parameters of MO with WWR-800 were studied. The results indicated that the adsorption of MO on WWR-800 was an endothermic process and non-spontaneous under standard conditions. The maximum equilibrium adsorption capacity of MO on WWR-800 was 454.55 mg/g. After five adsorption/desorption cycles, the adsorption capacity of MO on WWR-800 remained at 94%, which indicated that wormwood rod-based porous carbon possessed good reusability. HIGHLIGHTS Porous carbon (WWR-800) was synthesized from waste wormwood rod by NaCl activation.; The factors that affected the adsorption property of methyl orange on WWR-800 were systematically explored.; WWR-800 followed the Langmuir model for methyl orange dye.; The adsorption of MO on WWR-800 was endothermic and non-spontaneous under standard conditions.; WWR-800 provided good reusability and stability for adsorption.;
format	article
author	Shuhui Wang Yu Huang Yiting Wu Xinyu Zhang Liu Wan Xiang Liu Wanju Zhang
author_facet	Shuhui Wang Yu Huang Yiting Wu Xinyu Zhang Liu Wan Xiang Liu Wanju Zhang
author_sort	Shuhui Wang
title	Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
title_short	Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
title_full	Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
title_fullStr	Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
title_full_unstemmed	Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
title_sort	re-utilization of chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/32f2a3e2ea9841eda5ac5be099645298
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Re-utilization of Chinese medicinal herbal residue: waste wormwood rod-derived porous carbon as a low-cost adsorbent for methyl orange removal

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