Impact of environmental conditions on the sorption behavior of radionuclide 90 Sr(II) on Na-montmorillonite

Yu, Shujun; Mei, Huiyang; Chen, Xin; Tan, Xiaoli; Ahmad, Bashir; Alsaedi, Ahmed; Hayat, Tasawar; Wang, Xiangke

doi:10.1016/j.molliq.2014.12.041

Cited by 58 publications

(22 citation statements)

References 62 publications

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“…The main chemical components were: SiO 2 68.7%, Al 2 O 3 17.2%, Na 2 O 2.3%, Fe 2 O 3 1.6%, CaO 1.2%, K 2 O 0.9%, MgO 0.4% [22]. HA was extracted from the soil of Huajia county (Gansu, China), and was characterized in detail [23].…”

Section: Methodsmentioning

confidence: 99%

Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

Wang

Chen

et al. 2016

Chemical Engineering Journal

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Section: Methodsmentioning

confidence: 99%

Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

Wang

Chen

et al. 2016

Chemical Engineering Journal

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“…where C e denotes the equilibrium concentration, q is the adsorption capacity, b (L/mol) relates to the heat of adsorption, and Q o refers to the maximum adsorption capacity, which is the amount of metal ions at complete monolayer coverage (Yu et al 2015). 1/Q o is the slope of this linear regression curve and 1/(Q o b) is the y-intercept.…”

Section: Tem Imagesmentioning

confidence: 99%

“…where Q is the adsorption capacity, C e is the equilibrium concentration (Hakami et al 2012;El-Kamash 2008), K f is indicative of sorption capacity when the equilibrium concentration equals to 1, and n represents the degree of dependence of sorption on the equilibrium concentration (Yu et al 2015). This is an exponential expression that can represent properly the sorption data at low and intermediate concentration on heterogeneous surface (Pérez et al 2007).…”

Section: Tem Imagesmentioning

confidence: 99%

Adsorption of Cs from Water on Surface-Modified MCM-41 Mesosilicate

Guo

Han

Arslan

et al. 2015

Water Air Soil Pollut

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Cs is a common radionuclide present in nuclear wastes and released from nuclear power plant accidents. It is hard to be removed from water with traditional technology. The current study aimed at developing of efficient cost-effective adsorbent for removing Cs with modified MCM-41 with specific functional groups -SH. Mesoporous material MCM-41 was selected due to its large surface area and tunable pore structure. Functional -SH groups were grafted into the pores of MCM-41 to enhance its capability of selective adsorption of Cs from multi-element (Co, Sr) water solution. The adsorption results showed that the maximum adsorption capacity was 29.24 mg/g. Both Langmuir and Freundlich models described the adsorption processes of Cs, indicating co-existence of both monolayer and multilayer adsorption in the surface and inner pores of the materials. TEM, FTIR, and Raman spectroscopy analyses indicated that -SH groups were successfully bounded into the pores of MCM-41. The present study approved the surface functional modified MCM-41 which might be a good alternative candidate for cleaning up of radionuclide Cs from nuclear power plant accidents and relevant nuclear accident events.

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“…In short, At pH<6, the sorption of Th(IV) on natural illite can be attributed to the exchange of Th(IV) with alkali metal cations or alkaline earth cations. One can also see that the sorption of Th(IV) on illite at pH>6 is not affected by competing cations, which may be due to the formation of surface precipitates at high pH values (Yu et aL, 2015). To investigate the influence of background electrolyte foreign anions, sorption of Th(IV) on natural illite were investigated in 0.1M NaNO 3 , Na 2 SO 4 and Na 3 PO 4 solutions, respectively.…”

Section: Influence Of Foreign Ionsmentioning

confidence: 99%

“…In particular, some long-lived radionuclides have attracted people (Yu et aL, 2015;Kitamura and Kirishima, 2015). Radionuclides with high mobility in contaminated water will transfer into soil and plant materials.…”

Section: Introductionmentioning

confidence: 99%

Natural illite as an Efficient Adsorbent for Thorium Removal

Zhang¹,

Wang²,

Jiang³

et al. 2017

International Journal of Research in Environmental Science

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In this paper，the natural illite is used as low-cost sorbent for investigating the sorption of Th(IV). ) and are calculated from the temperature-dependent sorption data and the results indicate that the sorption of Th(IV) on natural illite was a spontaneous process. Isotherms of Th(IV) adsorption to natural illite could be described well by Langmuir model. Through the desorption experiments, the adsorption process on natural illite was reversible reaction. The sorption mechnism of Th(IV) on natural illite is ion exchange reaction with its potassium ions that are trapped in its interlayer

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Impact of environmental conditions on the sorption behavior of radionuclide 90 Sr(II) on Na-montmorillonite

Cited by 58 publications

References 62 publications

Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

Interaction mechanism of radionickel on Na-montmorillonite: Influences of pH, electrolyte cations, humic acid and temperature

Adsorption of Cs from Water on Surface-Modified MCM-41 Mesosilicate

Natural illite as an Efficient Adsorbent for Thorium Removal

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