Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution

Lu Xia; Zhonghang Huang; Lei Zhong; Fengwei Xie; Chak Yin Tang; Chi Pong Tsui

doi:10.3390/POLYM10080931

Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution

Lu Xia, Zhonghang Huang, Lei Zhong, Fengwei Xie, Chak Yin Tang, Chi Pong Tsui

Research output: Contribution to journal › Article › peer-review

33 Citations (SciVal)

Abstract

A novel bio-adsorbent was fabricated via grafting an amino-terminated hyperbranched polymer (HBP-NH₂) onto bagasse cellulose. The morphology and microstructure of the HBP-NH₂-grafted bagasse cellulose (HBP-g-BC) were characterized and its adsorption capacity for Cr(VI) ions in aqueous solutions was investigated. The rough surface structure of HBP-g-BC that is beneficial for improving the adsorption capacity was observed by scanning electron microscopy (SEM). The grafting reaction was confirmed by Fourier-transform infrared (FT-IR) spectroscopy. The adsorbent performance was shown to be better with a lower pH value, a higher adsorbent dosage, or a higher initial Cr(VI) concentration. Moreover, the kinetics study revealed that the adsorption behavior followed a pseudo-second-order model. The isotherm results showed that the adsorption data could be well-fitted by the Langmuir, Freundlich, or Temkin models. Moreover, HBP-g-BC could maintain 74.4% of the initial removal rate even after five cycles of regeneration. Thus, the high potential of HBP-g-BC as a bio-adsorbent for heavy metal removal has been demonstrated.

Original language	English
Article number	931
Journal	Polymers
Volume	10
Issue number	8
DOIs	https://doi.org/10.3390/POLYM10080931
Publication status	Published - 20 Aug 2018

Funding

This research was financially supported by the National Natural Science Foundation of China (NSFC) (No. 41461092), Specific Research Project of Guangxi for Research Bases and Talents (No. 2017AD19029) and the R&D Fund for the Postgraduate Students of Guangxi University for Nationalities (No. GXUN-CHXZS2016117). L.Z. would like to thank the Xiangsihu Young Scholars Innovative Research Team of Guangxi University for Nationalities for the support. F.X. acknowledges the Institute of Advanced Study, University of Warwick, and the European Commission's Marie Sklodowska-Curie Actions for theWarwick Interdisciplinary Research Leadership Programme (WIRL-COFUND) at the University ofWarwick. Funding: This research was financially supported by the National Natural Science Foundation of China (NSFC) (No. 41461092), Specific Research Project of Guangxi for Research Bases and Talents (No. 2017AD19029) and the R&D Fund for the Postgraduate Students of Guangxi University for Nationalities (No. GXUN-CHXZS2016117). Acknowledgments: L.Z. would like to thank the Xiangsihu Young Scholars Innovative Research Team of Guangxi University for Nationalities for the support. F.X. acknowledges the Institute of Advanced Study, University of Warwick, and the European Commission’s Marie Skłodowska-Curie Actions for the Warwick Interdisciplinary Research Leadership Programme (WIRL-COFUND) at the University of Warwick.

Funders	Funder number
European Commission's Marie Sklodowska-Curie Actions
European Commission’s Marie Skłodowska-Curie Actions for the Warwick Interdisciplinary Research Leadership Programme
Specific Research Project of Guangxi for Research Bases and Talents	2017AD19029
University ofWarwick
WIRL-COFUND
Institute for Advanced Study
Horizon 2020 Framework Programme	713548
University of Warwick
National Natural Science Foundation of China	41461092
Guangxi University for Nationalities	GXUN-CHXZS2016117

Keywords

Adsorption capacity
Bagasse cellulose
Cr(VI) removal
Hyperbranched polymer

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics

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10.3390/POLYM10080931Licence: CC BY

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title = "Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution",

abstract = "A novel bio-adsorbent was fabricated via grafting an amino-terminated hyperbranched polymer (HBP-NH2) onto bagasse cellulose. The morphology and microstructure of the HBP-NH2-grafted bagasse cellulose (HBP-g-BC) were characterized and its adsorption capacity for Cr(VI) ions in aqueous solutions was investigated. The rough surface structure of HBP-g-BC that is beneficial for improving the adsorption capacity was observed by scanning electron microscopy (SEM). The grafting reaction was confirmed by Fourier-transform infrared (FT-IR) spectroscopy. The adsorbent performance was shown to be better with a lower pH value, a higher adsorbent dosage, or a higher initial Cr(VI) concentration. Moreover, the kinetics study revealed that the adsorption behavior followed a pseudo-second-order model. The isotherm results showed that the adsorption data could be well-fitted by the Langmuir, Freundlich, or Temkin models. Moreover, HBP-g-BC could maintain 74.4% of the initial removal rate even after five cycles of regeneration. Thus, the high potential of HBP-g-BC as a bio-adsorbent for heavy metal removal has been demonstrated.",

keywords = "Adsorption capacity, Bagasse cellulose, Cr(VI) removal, Hyperbranched polymer",

author = "Lu Xia and Zhonghang Huang and Lei Zhong and Fengwei Xie and Tang, {Chak Yin} and Tsui, {Chi Pong}",

year = "2018",

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AU - Xia, Lu

AU - Huang, Zhonghang

AU - Zhong, Lei

AU - Xie, Fengwei

AU - Tang, Chak Yin

AU - Tsui, Chi Pong

PY - 2018/8/20

Y1 - 2018/8/20

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AB - A novel bio-adsorbent was fabricated via grafting an amino-terminated hyperbranched polymer (HBP-NH2) onto bagasse cellulose. The morphology and microstructure of the HBP-NH2-grafted bagasse cellulose (HBP-g-BC) were characterized and its adsorption capacity for Cr(VI) ions in aqueous solutions was investigated. The rough surface structure of HBP-g-BC that is beneficial for improving the adsorption capacity was observed by scanning electron microscopy (SEM). The grafting reaction was confirmed by Fourier-transform infrared (FT-IR) spectroscopy. The adsorbent performance was shown to be better with a lower pH value, a higher adsorbent dosage, or a higher initial Cr(VI) concentration. Moreover, the kinetics study revealed that the adsorption behavior followed a pseudo-second-order model. The isotherm results showed that the adsorption data could be well-fitted by the Langmuir, Freundlich, or Temkin models. Moreover, HBP-g-BC could maintain 74.4% of the initial removal rate even after five cycles of regeneration. Thus, the high potential of HBP-g-BC as a bio-adsorbent for heavy metal removal has been demonstrated.

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Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution

Abstract

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