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Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye

In this study, Chinese yam peel (CYP) was modified with polypyrrole via an in situ polymerization method to remove Congo red from aqueous media. The prepared CYP–polypyrrole (CYP–PPy) composite was characterized using FTIR, SEM, TEM, XRD, TG and BET analysis. The performance of CYP–PPy towards the a...

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Autores principales: Wang, Yan, Chen, Rongyao, Dai, Zijing, Yu, Qingcai, Miao, Yongmei, Xu, Ronghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8985122/
https://www.ncbi.nlm.nih.gov/pubmed/35424846
http://dx.doi.org/10.1039/d1ra08280a
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author Wang, Yan
Chen, Rongyao
Dai, Zijing
Yu, Qingcai
Miao, Yongmei
Xu, Ronghua
author_facet Wang, Yan
Chen, Rongyao
Dai, Zijing
Yu, Qingcai
Miao, Yongmei
Xu, Ronghua
author_sort Wang, Yan
collection PubMed
description In this study, Chinese yam peel (CYP) was modified with polypyrrole via an in situ polymerization method to remove Congo red from aqueous media. The prepared CYP–polypyrrole (CYP–PPy) composite was characterized using FTIR, SEM, TEM, XRD, TG and BET analysis. The performance of CYP–PPy towards the adsorption of Congo red (CR) was explored in batch mode. The removal efficiency of CR was found to be 86% at the initial concentration of 100 mg L(−1), contact time of 120 min, and the adsorbent dosage of 10 g L(−1). At equilibrium time (20 h), the removal efficiency was significantly acceptable (98.9%). The adsorption kinetics data were most consistent with the pseudo-second-order kinetic model. The adsorption equilibrium data could be described well by the Langmuir isotherm model with the maximum adsorption capacity of 86.66 mg g(−1). In view of thermodynamics, the adsorption process was endothermic and more favorable for CR removal at 45 °C. A reusability study indicated that CYP–PPy could be reused effectively for up to three successive cycles of ad-/de-sorption. Hence, this work provides an alternative scheme for the targeted exploitation of agricultural waste to control dye pollution.
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spelling pubmed-89851222022-04-13 Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye Wang, Yan Chen, Rongyao Dai, Zijing Yu, Qingcai Miao, Yongmei Xu, Ronghua RSC Adv Chemistry In this study, Chinese yam peel (CYP) was modified with polypyrrole via an in situ polymerization method to remove Congo red from aqueous media. The prepared CYP–polypyrrole (CYP–PPy) composite was characterized using FTIR, SEM, TEM, XRD, TG and BET analysis. The performance of CYP–PPy towards the adsorption of Congo red (CR) was explored in batch mode. The removal efficiency of CR was found to be 86% at the initial concentration of 100 mg L(−1), contact time of 120 min, and the adsorbent dosage of 10 g L(−1). At equilibrium time (20 h), the removal efficiency was significantly acceptable (98.9%). The adsorption kinetics data were most consistent with the pseudo-second-order kinetic model. The adsorption equilibrium data could be described well by the Langmuir isotherm model with the maximum adsorption capacity of 86.66 mg g(−1). In view of thermodynamics, the adsorption process was endothermic and more favorable for CR removal at 45 °C. A reusability study indicated that CYP–PPy could be reused effectively for up to three successive cycles of ad-/de-sorption. Hence, this work provides an alternative scheme for the targeted exploitation of agricultural waste to control dye pollution. The Royal Society of Chemistry 2022-03-25 /pmc/articles/PMC8985122/ /pubmed/35424846 http://dx.doi.org/10.1039/d1ra08280a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Wang, Yan
Chen, Rongyao
Dai, Zijing
Yu, Qingcai
Miao, Yongmei
Xu, Ronghua
Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye
title Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye
title_full Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye
title_fullStr Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye
title_full_unstemmed Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye
title_short Facile preparation of a polypyrrole modified Chinese yam peel-based adsorbent: characterization, performance, and application in removal of Congo red dye
title_sort facile preparation of a polypyrrole modified chinese yam peel-based adsorbent: characterization, performance, and application in removal of congo red dye
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8985122/
https://www.ncbi.nlm.nih.gov/pubmed/35424846
http://dx.doi.org/10.1039/d1ra08280a
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