Evaluation of Polyethersulfone‐based Composite for Selective Separation of Cesium from Acidic Media

Abstract

This article describes the performance of inorganic-organic ion exchanger for the separation of cesium ion from acidic media. The composite consisted of ammonium molybdophosphate and polyethersulfone as a functional adsorbent and a polymeric support, respectively. The physicochemical properties of the polymer composite were examined using different techniques including thermogravimetric analysis, scanning electron/optical microscopy, and infrared spectrometry. Cesium sorption capacity of the composite was evaluated through batch studies under various conditions. The dynamic sorption and recovery were also studied by performing column experiments. In addition, we demonstrated the possible use of the synthesized granule for the selective recovery of radioactive cesium in a post-irradiated nuclear material solution containing multiple fission products.

Highly selective cesium(I) capture under acidic conditions by a layered sulfide

“…Such excellent treatment capacity exceeds that of most reported Cs + ion exchangers, e.g., MCC-g-AMP, M/SZMs, PEI/ZnFC 54 – 63 . Notably, hitherto studies on the column separation of Cs + from strongly acidic solutions containing high concentration of Cs + are still rare 16 , 64 . The current ion-exchange column provides a practical example that shows the effective removal of Cs + from the highly acidic solution with high treatment amount.…”

Rapid and Selective Uptake of Cs+ and Sr2+ Ions by a Layered Thiostannate with Acid–Base and Irradiation Resistances

“…In particular, the high-level liquid waste (HLLW) is generally strongly acidic. Effectively removing Cs + and Sr 2+ ions from HLLW is still a great challenge because of the effects of protonation on the materials and retardation of the performance of the materials. − …”

Efficient Co‐Adsorption and Highly Selective Separation of Cs+ and Sr2+ with a K+‐Activated Niobium Germanate by the pH Control

“…AMP‐PES selectively adsorbs and recovers radioactive cesium in acidic media (0.1–4.0 M HNO 3 ). [ 18 ] And we explored KInSnS 4 (InSnS‐1) that can rapidly and selectively capture Cs + in strongly acidic solutions (1 M and 3 M HNO 3 ) via ion exchange. [ 7a ] However, the materials that can effectively separate Cs + and Sr 2+ ions in acid solutions such as 1 M HNO 3 are still limited currently.…”

“…[ 7a ] However, the materials that can effectively separate Cs + and Sr 2+ ions in acid solutions such as 1 M HNO 3 are still limited currently. [ 7a,18 ]…”