Improved adsorption properties of granulated copper hexacyanoferrate with multi-scale porous networks. Issue 20 (9th February 2016)

• Record Type: Journal Article
• Authors: Lee, Kyoung-Moo; Kawamoto, Tohru; Minami, Kimitaka; Takahashi, Akira; Parajuli, Durga; Kido, Gentoku; Yoshino, Kazunori; Tanaka, Hisashi
• Is Part Of: RSC advances. Volume 6:Issue 20(2016)
• Page Start: 16234
• Page End: 16238
• Publication Date: 2016-02-09
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra25388h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Designed porous copper hexacyanoferrate micro-capsule beads (CuHCF-MCB) were prepared using freeze-drying (FD). 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.