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Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution
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Xia, Lu, Huang, Zhonghang, Zhong, Lei, Xie, Fengwei, Tang, Chak and Tsui, Chi Pong (2018) Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution. Polymers, 10 (8). 931. doi:10.3390/polym10080931 ISSN 2073-4360.
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Official URL: http://dx.doi.org/10.3390/polym10080931
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. View Full-Text
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QD Chemistry | ||||||||||||
Divisions: | Other > Institute of Advanced Study Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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Library of Congress Subject Headings (LCSH): | Polymers, Cellulose | ||||||||||||
Journal or Publication Title: | Polymers | ||||||||||||
Publisher: | M D P I AG | ||||||||||||
ISSN: | 2073-4360 | ||||||||||||
Official Date: | 20 August 2018 | ||||||||||||
Dates: |
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Volume: | 10 | ||||||||||||
Number: | 8 | ||||||||||||
Article Number: | 931 | ||||||||||||
DOI: | 10.3390/polym10080931 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
Date of first compliant deposit: | 21 August 2018 | ||||||||||||
Date of first compliant Open Access: | 21 August 2018 | ||||||||||||
RIOXX Funder/Project Grant: |
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