Issue 20, 2016

Improved adsorption properties of granulated copper hexacyanoferrate with multi-scale porous networks

Abstract

Designed porous copper hexacyanoferrate micro-capsule beads (CuHCF-MCB) were prepared using freeze-drying (FD). Multi-scale porous networks composed of Angstrom, nanometer, and micrometer sizes were obtained in the desired shapes using a simple drying process. They provide special benefits such as fast kinetics and high capacity. The Cs adsorption equilibrium and kinetics fit the pseudo-second-order kinetic model well. The adsorption rate of FD-CuHCF-MCB was improved to about 15 times higher than that of the heat-drying process because of the highly multi-scale porous structure of FD-CuHCF-MCB, which facilitated solution flow and rapid ion-diffusion inside the MCB.

Graphical abstract: Improved adsorption properties of granulated copper hexacyanoferrate with multi-scale porous networks

Supplementary files

Article information

Article type
Communication
Submitted
30 Nov 2015
Accepted
30 Jan 2016
First published
02 Feb 2016
This article is Open Access
Creative Commons BY license

RSC Adv., 2016,6, 16234-16238

Author version available

Improved adsorption properties of granulated copper hexacyanoferrate with multi-scale porous networks

K. Lee, T. Kawamoto, K. Minami, A. Takahashi, D. Parajuli, G. Kido, K. Yoshino and H. Tanaka, RSC Adv., 2016, 6, 16234 DOI: 10.1039/C5RA25388H

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