Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80241
Title: Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution
Authors: Xia, L
Huang, ZH
Zhong, L
Xie, FW
Tang, CY 
Tsui, CP 
Keywords: Bagasse cellulose
Hyperbranched polymer
Adsorption capacity
Cr(VI) removal
Issue Date: 2018
Publisher: Molecular Diversity Preservation International (MDPI)
Source: Polymers, Aug. 2018, v. 10, no. 8, 931, p. 1-15 How to cite?
Journal: Polymers 
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.
URI: http://hdl.handle.net/10397/80241
ISSN: 2073-4360
DOI: 10.3390/polym10080931
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Xia, L., Huang, Z.H., Zhong, L., Xie, F.W., Tang, C.Y., & Tsui, C.P. (2018). Bagasse cellulose grafted with an amino-terminated hyperbranched polymer for the removal of Cr(VI) from aqueous solution. Polymers, 10 (8), 931, p. 1-15 is available at https://dx.doi.org/10.3390/polym10080931
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