Sorption studies of cesium on TiO2–SiO2 mixed gel spheres

Gurboga, G.; Tel, H.; Altaş, Yüksel

doi:10.1016/j.seppur.2005.06.008

Cited by 39 publications

(10 citation statements)

References 6 publications

(6 reference statements)

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“…Since the major nuclear accident at Fukushima, Japan in 2011, 630,000-777,000 TBq (tetrabecquerels) of radioactive nuclides such as Sr, Se, I and Cs were released into water, soil and air [1,2]. Among radionuclides, 137 Cs has a long half-life of (t 1/2 =30.17 years) and poses serious environmental threat because of its high solubility and mobility with aqueous media in the subsurface [3]. Furthermore, it can be readily assimilated by terrestrial and living organisms due to its similar chemical characteristics with potassium [4].…”

Section: Introductionmentioning

confidence: 99%

Removal of cesium ions from waste solution using sericite incorporated into nickel hexacyanoferrate

Jeon

Cha

2015

Korean J. Chem. Eng.

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To increase adsorption capacity and selectivity for cesium ions from waste solution, sericite was chemically modified by means of nickel hexacyanoferrate (NiHCF) with a high selectivity trap agent for cesium. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) spectroscopy were used for the characteristic analysis of surface onto the NiHCF-sericite. The adsorption capacity of cesium ions for the NiHCF-sericite increased about 2.5 times, as compared with natural sericite at initial pH 5.0 of waste solution. Adsorption equilibrium was investigated by Langmuir and Freundlich isotherm model, respectively. Maximum adsorption capacity was estimated as 16.583 mg/g, and the Langmuir isotherm fits the adsorption data better than Freundlich model. The adsorption process was determined as an exothermic reaction and all adsorption was completed in 30 min. In addition, the adsorption capacity of cesium ions was not greatly affected by ionic strength (~0.1 M NaCl concentration) and other metals in mixed waste solution.

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Section: Introductionmentioning

confidence: 99%

Removal of cesium ions from waste solution using sericite incorporated into nickel hexacyanoferrate

Jeon

Cha

2015

Korean J. Chem. Eng.

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“…Among these methods, ion exchange process has recently attracted a lot of attentions for removal of cesium from waste streams because of its convenience, efficiency and selectivity. Use of various materials has been previously reported for this technique [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of cesium on copper hexacyanoferrate–PAN composite ion exchanger from aqueous solution

Nilchi¹,

Saberi²,

Moradi

et al. 2011

Chemical Engineering Journal

238

100

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“…Treatment of liquid radioactive waste quite often involves the application of several steps such as precipitation, sorption, membrane separation and ion exchange to meet the requirements both for the release of decontaminated effluents into the environment and the conditioning of waste concentrates for disposal [2,3]. Ion exchange is one of the most important methods for the selective adsorption and safe storage of 137 Cs.…”

Section: Introductionmentioning

confidence: 99%