Development of Novel 'Sponge-type' Sorbent for Elimination of Cs: Preparation of Ammonium Molybdophosphate - Polyurethane Foam (AMP-PUF) Composite and Its Sorption Behavior

摘要

Aiming to develop "sponge-type" sorbent, composite involving ammonium molybdophosphate (AMP) and polyurethane foam (PUF) was prepared. A 33 - 60 % (w/w) of AMP granule was kneaded with base-liquids of two-component rigid type PUF. The composite was able to selectively and quantitatively adsorb 0.5-500 μg of Cs~+ from 10 mL solution containing 500 ug of Na~+, K~+, Mg~(2+) and Ca~(2+) as matrices ions; distribution coefficient (kd) was 4.2 ×10~6 and 1.3×10~5 mL/g for without and with matrices, respectively. Maximum sorption capacity was of 42.9 mg/g.