Preparation of three-dimensional honeycomb carbon materials and their adsorption of Cr(VI)

By Hongxu Liang, Bin Song, P. Peng, Gao-Jie Jiao, Xiangling Yan, D. She. Chemical Engineering Journal, 2019

177 citations recorded by the source corpus.

Abstract Hollow carbon spheres (HCSs) were prepared by a hydrothermal synthetic method using glucose as the raw material, and a honeycomb carbon material (HCM) was prepared by modifying these HCSs. The materials were characterized by SEM, TEM, BET, Raman spectroscopy, XPS, XRD, and elemental analysis. A large number of pores were observed in the HCM by SEM and TEM, and the specific surface area of the material, as determined by BET testing, was 1436.21 m2/g. The adsorption properties of the HCM were tested by a batch adsorption method. The maximum adsorption capacity of the HCM for Cr(VI) was 332.53 mg/g, and the performance was better than that of a similar materials. The kinetic thermodynamics and intraparticle diffusion models were fit, and it was found that the adsorption of Cr(VI) onto the honeycomb carbon was a spontaneous endothermic process. The regenerative adsorption experiments showed that the material had good regenerative abilities.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/2c9416e4e0ccb98ef5f97d7db7605f4e0737a612

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In Water Science and Technology

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