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Title: Prussian blue-coated magnetic nanoparticles for removal of cesium from contaminated environment
Authors: Chakrit Thammawong
Pakorn Opaprakasit
Pramuan Tangboriboonrat
Paiboon Sreearunothai
Sirindhorn International Institute of Technology, Thammasat University
Mahidol University
Keywords: Chemical Engineering;Chemistry;Materials Science;Mathematics;Physics and Astronomy
Issue Date: 16-May-2013
Citation: Journal of Nanoparticle Research. Vol.15, No.6 (2013)
Abstract: A large amount of radioactive cesium (Cs) has been released into natural environment following the nuclear accident in Fukushima, Japan in 2011. Much effort has been directed at capturing Cs and remediation of the contaminated environment. However, conventional sorbents, such as Prussian blue and zeolites cannot be easily recovered once spread into an open environment. Here, we develop new nano-sorbent based on the magnetic nanoparticles (MNP) functionalized with Prussian blue (PB) that possess both high Cs adsorption capacity (96 mg Cs/g sorbent) and large distribution coefficient (3.2 × 104mL/g at 0.5 ppm Cs concentration). The developed sorbents possess good value of saturation magnetization (20 emu/g) allowing for rapid and ease of sorbent separation from the Cs solution after treatment using magnetic field. This Cs magnetic nano-sorbent can offer high potential for the use in large scale remediation of a Cs contaminated environment as well as the possibility of novel Cs decorporation drugs that can be magnetically assisted for accelerated excretion of radiocesium from the human body. © 2013 Springer Science+Business Media Dordrecht.
ISSN: 1572896X
Appears in Collections:Scopus 2011-2015

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