Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 112, Issue -, Pages 1048-1054Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2018.02.074
Keywords
Chitosan; Graphene nanoplates; Composite spheres; Acid dyes; Adsorption
Funding
- Undergraduate Innovation and Entrepreneurship Training Program of Liaoning Province [201610163046]
- Young and Middle-aged Key Talent Training Program of Shenyang Pharmaceutical University [ZQN2016009]
- Public Research Fund of Science and Technology Department of Liaoning Province [2015003005]
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A facile method for the fabrication of crosslinked chitosan/graphene nanoplates composite sphere (CS/GNPs) was presented. The obtained samples were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopic (XPS) and thermogravimetric analysis (TGA). The adsorption activities of CS/GNPs for methyl orange (MO) and acid red I (AR1) were evaluated such as the effect of pH and GNPs content, as well as adsorption kinetics and isotherms. In view of practical, the reusability of CS/GNPs was also tested. The resulting adsorption capacity for MO is 230.91 mg g(-1) and 132.94 mg g(-1), for AR1, respectively. After saturated adsorption, CS/GNPs can be efficiently regenerated and reused with little uptake loss. Therefore, CS/GNPs is the apromising adsorbent with non-toxic, effident, low-cost and easy to prepare for the dye removal. (C) 2018 Elsevier B.V. All rights reserved.
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