Abstract
The Prussian blue functionalized SiO2 (nano-material of SiO2-Fe-CN) was successfully prepared using a novel and simple preparation route. The SiO2 nanoparticles were functionalized by amino group by refluxing with (3-Aminopropyl) trimethoxysilane, iron (III) immobilized the modified nanoparticles through interaction with the amino group, finally, SiO2-Fe-CN nanomaterial produced as a result of potassium ferrocyanide addition. SEM, FTIR and XRD techniques were used for detecting the morphology, particle size, different functional groups and the crystal structure of the prepared nano-materials. The sorption potential of nano-material of SiO2-Fe-CN towards cationic and anionic radioisotopes from aqueous and HNO3 solutions were tested using carrier free method. The experimental results showed that nano-material of SiO2-Fe-CN have high effective retention and recovery for 134Cs, 60Co and 99Mo from nuclear liquid waste. Moreover, sorption of 90Sr/90Y is insignificant using SiO2-Fe-CN nano adsorbent material. It is a promising and efficient nano adsorbent that could be used for upscaling design and application on liquid radioactive waste treatment facility.
Sorption potential of nano composite adsorbent for some radioisotopes. [Display omitted]
•Prussian blue (FeCN) functionalized SiO2 nano adsorbent material was successfully prepared by novel method.•Nano SiO2-Fe-CN material has been characterized using some analytical tools.•Potential adsorption properties of the synthetic nano adsorbent towards long-lived radionuclides is studied.•Simultaneous remove of 134Cs+ and 60Co2+ are 95.7 and 88.8%, respectively, using nano SiO2-Fe-CN at pH5.5.•Application on treatment liquid nuclear waste was tested.