Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal

In this study, the polyethyleneimine (PEI) modified waste bamboo powder (WBP-Na-PEI) was successfully prepared and applied to adsorbing Congo red (CR) dye from aqueous solution. The obtained materials were characterized by field emission scanning electron microscope, X-ray diffraction, Fourier trans...

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Autores principales:	Jian Zhang, Wenjing Lu, Hui Li, Siyan Zhan, Ximo Wang, Changpo Ma, Zumin Qiu
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption congo red polyethyleneimine-impregnated waste bamboo powder Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/77577a4b2fe245afb0c4f020c89e25f2
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id	oai:doaj.org-article:77577a4b2fe245afb0c4f020c89e25f2
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spelling	oai:doaj.org-article:77577a4b2fe245afb0c4f020c89e25f22021-11-06T10:51:01ZPolyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal0273-12231996-973210.2166/wst.2021.041https://doaj.org/article/77577a4b2fe245afb0c4f020c89e25f22021-03-01T00:00:00Zhttp://wst.iwaponline.com/content/83/5/1183https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this study, the polyethyleneimine (PEI) modified waste bamboo powder (WBP-Na-PEI) was successfully prepared and applied to adsorbing Congo red (CR) dye from aqueous solution. The obtained materials were characterized by field emission scanning electron microscope, X-ray diffraction, Fourier transform-infrared, and thermogravimetric analysis. The results showed that WBP-Na-PEI(1.8 K-5) was synthesized successfully and PEI uniformly covered the WBP-Na-PEI(1.8 K-5) surface. In the process of adsorption, four kinds of influencing factors were discussed, and the adsorption mechanisms such as kinetics, isotherm, thermodynamics were explored. The maximum adsorption capacity of WBP-Na-PEI(1.8 K-5) was 992.94 mg·g−1 at 298 ± 1 K, and the removal efficiency was over 98%. Pseudo-first-order, pseudo-second-order and intra-particle diffusion models were studied, the results showed that the adsorption process conformed to the pseudo-second-order model, and the rate of this process was controlled by many steps. Furthermore, the removal efficiency of the adsorption kinetics reached 85% within 10 minutes. The results of the isotherm model and thermodynamics showed that the adsorption process was consistent with the Langmuir model and was mainly a spontaneous chemical endothermic process of monolayer. And the removal efficiency of the adsorbent reached 93% at the concentration of 400 mg/L, which can be expected to have a broad prospect in the treatment of CR industrial wastewater.Jian ZhangWenjing LuHui LiSiyan ZhanXimo WangChangpo MaZumin QiuIWA Publishingarticleadsorptioncongo redpolyethyleneimine-impregnatedwaste bamboo powderEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 5, Pp 1183-1197 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption congo red polyethyleneimine-impregnated waste bamboo powder Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption congo red polyethyleneimine-impregnated waste bamboo powder Environmental technology. Sanitary engineering TD1-1066 Jian Zhang Wenjing Lu Hui Li Siyan Zhan Ximo Wang Changpo Ma Zumin Qiu Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
description	In this study, the polyethyleneimine (PEI) modified waste bamboo powder (WBP-Na-PEI) was successfully prepared and applied to adsorbing Congo red (CR) dye from aqueous solution. The obtained materials were characterized by field emission scanning electron microscope, X-ray diffraction, Fourier transform-infrared, and thermogravimetric analysis. The results showed that WBP-Na-PEI(1.8 K-5) was synthesized successfully and PEI uniformly covered the WBP-Na-PEI(1.8 K-5) surface. In the process of adsorption, four kinds of influencing factors were discussed, and the adsorption mechanisms such as kinetics, isotherm, thermodynamics were explored. The maximum adsorption capacity of WBP-Na-PEI(1.8 K-5) was 992.94 mg·g−1 at 298 ± 1 K, and the removal efficiency was over 98%. Pseudo-first-order, pseudo-second-order and intra-particle diffusion models were studied, the results showed that the adsorption process conformed to the pseudo-second-order model, and the rate of this process was controlled by many steps. Furthermore, the removal efficiency of the adsorption kinetics reached 85% within 10 minutes. The results of the isotherm model and thermodynamics showed that the adsorption process was consistent with the Langmuir model and was mainly a spontaneous chemical endothermic process of monolayer. And the removal efficiency of the adsorbent reached 93% at the concentration of 400 mg/L, which can be expected to have a broad prospect in the treatment of CR industrial wastewater.
format	article
author	Jian Zhang Wenjing Lu Hui Li Siyan Zhan Ximo Wang Changpo Ma Zumin Qiu
author_facet	Jian Zhang Wenjing Lu Hui Li Siyan Zhan Ximo Wang Changpo Ma Zumin Qiu
author_sort	Jian Zhang
title	Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
title_short	Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
title_full	Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
title_fullStr	Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
title_full_unstemmed	Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
title_sort	polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/77577a4b2fe245afb0c4f020c89e25f2
work_keys_str_mv	AT jianzhang polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval AT wenjinglu polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval AT huili polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval AT siyanzhan polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval AT ximowang polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval AT changpoma polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval AT zuminqiu polyethyleneimineimpregnatedalkalitreatedwastebamboopowderforeffectivedyeremoval
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Polyethyleneimine-impregnated alkali treated waste bamboo powder for effective dye removal

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