Synthesis of a Microhoneycomb-Type Silica-Supported Ammonium Molybdophosphate for Cesium Separation

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Isao Ogino¹  Seiichiro Yoshida¹  Shin R. Mukai¹  Yoshinao Kimura¹ 

[1]Division of Chemical Process Engineering, Graduate School of Engineering, Hokkaido University

关键词: Cesium;    Ammonium Molybdophosphate;    Monolithic Silica Gel;    Freeze-Dry;    Ice Templating Method;   

DOI  :  10.1252/jcej.13we064

来源: Maruzen Company Ltd

【 摘 要 】

References(8)Cited-By(3)The present study investigates a monolithic silica microhoneycomb including ammonium molybdophosphate (AMP-SMH) that was synthesized for cesium separation in a continuous flow system. The honeycomb structure of the AMP-SMH causes significantly less hydraulic resistance to a liquid flow than a conventional bed of particles as demonstrated by pressure-drop measurements using water. AMP particles were dispersed as small particles ≈10 µm in diameter on or within the microchannels of the silica microhoneycomb as characterized by SEM. These AMP particles function as effective sorbents to remove ppm-level cesium ions effectively from a solution, as shown by the breakthrough curve. These data suggest the potential features of the AMP-SMH for processing a large volume of a solution containing radioactive cesium.

【 授权许可】

Unknown