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Updated: Feb 14, 2026

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Published on: November 4, 2022
Simple fabrication of Chitosan/Graphene nanoplates composite spheres for efficient adsorption of acid dyes from
Conglu Zhang1, Zezhi Chen2, Wei Guo1
1School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi, Liaoning Province 117004, PR China.
Abstract:
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 1 (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 230.91mgg-1 and 132.94mgg-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, efficient, low-cost and easy to prepare for the dye removal.
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