Studies on the adsorption behavior of trace amounts of 90Sr2+, 140La3+, 60Co2+, Ni2+and Zr4+ cations on synthesized inorganic ion exchangers

Nilchi, A.; Hadjmohammadi, Mohammad Reza; Garmarodi, S. Rasouli; Saberi, R.

doi:10.1016/j.jhazmat.2009.01.028

Cited by 35 publications

(7 citation statements)

References 18 publications

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“…Therefore, recently inorganic ion-exchange materials are considered to be the most promising. Starting from the classical works of Amphlett [4] to this day, many inorganic ion exchangers have been synthesized and investigated [5][6][7][8][9][10][11][12][13][14]. Among inorganic ion exchangers for adsorption of radionuclides, it is necessary to note the titanium and zirconium phosphates and hydroxides.…”

Section: Introductionmentioning

confidence: 99%

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Zhuravlev¹

2019

Colloids and Interfaces

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The aim of the work was the development of cheap and effective adsorbents based on titanium silicates deposited on the products of thermochemical processing of rice husk to extract cesium and strontium radioisotopes from aqueous media. Synthesis of adsorbents was carried out using the cheapest and widely used titanium water-soluble reagent, titanium sulfate (an intermediate product of white rutile pigment production), as feedstock. After treatment with titanium sulfate and neutralization, hydrothermal treatment was carried out in various ways. The traditional method of processing in an autoclave was used, as well as the blowing at different temperatures by steam. The distribution coefficients and the adsorption capacity for cesium and strontium ions on these sorbents were studied. Along with the chemical composition of adsorbents obtained by those ways, the type and the temperature of hydrothermal treatment also affected the adsorption properties. It was found that the adsorbent obtained by hydrothermal treatment in an autoclave has the highest degree of cesium ions extraction (Kd = 27,500). The highest degree of strontium ions extraction (Kd = 2,095,000) has an adsorbent obtained by hydrothermal treatment with water vapor blowing.

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Section: Introductionmentioning

confidence: 99%

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Zhuravlev¹

2019

Colloids and Interfaces

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“…137 Cs and 90 Sr because of high fission yield and long half life properties are the two most important fission products. Different techniques such as flotation, adsorption, and ion exchange are used for the treatment of aqueous wastes containing these ions [1][2][3][4][5]. Ion exchange technique is an attractive method because of its simplicity, selectivity, and efficiency [6,7].…”

Section: Introductionmentioning

confidence: 99%

Application of PAN‐NaY Composite for CS⁺ and SR²⁺ Adsorption: Kinetic and Thermodynamic Studies

Faghihian

Iravani²,

Moayed³

2015

Env Prog and Sustain Energy

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In this research, a new composite adsorbent consisting of zeolite Y and polyacrylonitrile (PAN) was synthesized. The composite was characterized by XRD, XRF, FTIR, DTG, and SEM analysis. The adsorption behavior of the composite toward Cs+ and Sr2+ was investigated. The effect of pH, initial ion concentration, contact time, and temperature on sorption process was examined. The maximum adsorption capacity of the composite was 219.8 and 70.23 mg g−1 for Cs+ and Sr2+, respectively. The kinetic of the process followed pseudo‐second‐order model. The equilibrium data were analyzed by the Langmuir, Freundlich, and D‐R isotherm models. The mean free energy of the sorption (E) for both ions was in the range of 8–16 kJ mol−1, confirming an ion exchange mechanism had been carried out. Positive ΔH° and negative ΔG° were indicative of the endothermic and spontaneous nature adsorption. Obtained results revealed the PAN‐NaY composite was a desirable ion exchanger for Cs+ and Sr2+ removal. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 999–1008, 2015

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“…Under the alkaline condition, Sr 2+ and Ca 2+ were precipitated by HPO 4 2− to Sr-substituted hydroxyapatite. The liquid samples (each of 5 mL) were abstracted from the clear solution before and after hydrothermal and diluted to 100 mL, respectively.…”

Section: Removal Efficiency Of Sr 2+mentioning

confidence: 99%

“…Because 90 Sr has persistent radioactivity and biological toxicity, and long half-life of 28.9 years, it should be removed from HLW to protect humanity and environment [4]. Moreover, its lasting exothermicity makes it harmful to immobilize the radioactive waste by vitrification in final geological disposal [5].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal removal of Sr2+ in aqueous solution via formation of Sr-substituted hydroxyapatite

Tan

Chen

et al. 2010

Journal of Hazardous Materials

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Studies on the adsorption behavior of trace amounts of 90Sr2+, 140La3+, 60Co2+, Ni2+and Zr4+ cations on synthesized inorganic ion exchangers

Cited by 35 publications

References 18 publications

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Application of PAN‐NaY Composite for CS⁺ and SR²⁺ Adsorption: Kinetic and Thermodynamic Studies

Hydrothermal removal of Sr2+ in aqueous solution via formation of Sr-substituted hydroxyapatite

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Studies on the adsorption behavior of trace amounts of 90Sr2+, 140La3+, 60Co2+, Ni2+and Zr4+ cations on synthesized inorganic ion exchangers

Cited by 35 publications

References 18 publications

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Titanium Silicates Precipitated on the Rice Husk Biochar as Adsorbents for the Extraction of Cesium and Strontium Radioisotope Ions

Application of PAN‐NaY Composite for CS+ and SR2+ Adsorption: Kinetic and Thermodynamic Studies

Hydrothermal removal of Sr2+ in aqueous solution via formation of Sr-substituted hydroxyapatite

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Product

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Application of PAN‐NaY Composite for CS⁺ and SR²⁺ Adsorption: Kinetic and Thermodynamic Studies