Highly selective adsorption of radioactive cesium by novel calix[4]biscrown-6 functionalized millimetre-sized hierarchically porous carbon spheres

Dong, Zhili; Li, Zifan; Zeng, Dongling; Cheng, Zhengwang; Wang, Yingcai; Dai, Ying; Cao, Xiaohong; Wang, Youqun; Zhang, Zhibin; Liu, Yuhui

doi:10.1016/j.seppur.2022.122255

Cited by 14 publications

(3 citation statements)

References 43 publications

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“…Nuclear power introduces an appropriate energy; however, it is accompanied by several concerns, such as nuclear waste disposal and serious consequences due to unanticipated disasters [ 3 ]. Nuclear contamination is responsible for health and safety issues [ 4 ]. These radioactive wastes have been carcinogen materials that seriously impact humans [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…Zirconium-90, a stable isotope, results from 90 Y decay [ 10 , 11 ]. Many strategies for removing radionuclides from the waste stream have been used, including ion exchange [ 11 ], chemical precipitation, membrane filtering [ 10 ], solvent extraction [ 12 , 13 ], and adsorption [ 4 ]. Each technique has benefits and drawbacks depending on process efficiency, ease of use, cost, and flexibility.…”

Section: Introductionmentioning

confidence: 99%

“…Zhimin et al studied the efficient removal of Cs (I) from high-level liquid wastewaters (HLLW) using calix[ 3 ] biscrown-6 functionalized millimeter-sized hierarchically porous carbon spheres. The obtained maximum adsorption capacity of Cs (I) was 22.72 mg/g [ 16 ]. Li et al [ 15 ] investigated the efficiency of kaolin, activated carbon, bentonite, montmorillonite, attapulgite, and zeolite for the Sr (II) adsorption.…”

Section: Introductionmentioning

confidence: 99%

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Utilization of carbon-coated ZrO2/Mn-Mg-Zn ferrites nanostructures for the adsorption of Cs (I) and Sr (II) from the binary system: kinetic and equilibrium studies

Abdel Maksoud,

Murad,

Hassan

2023

BMC Chemistry

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Carbon-coated ZrO2/Mn-Mg-Zn ferrites nanostructures (CZ-FN) have been prepared as a new inorganic sorbent to remove Cs (I) and Sr (II) from a waste stream. Adsorption of Cs (I) and Sr (II) has been implemented considering different noteworthy parameters, for example, shaking time and the optimum time achieved high adsorption capacity of both ions [103 and 41 mg/g for Sr (II) and Cs (I)] was found 30 min. Also, the impact of pH values was studied; the best pH value for the adsorption process is pH 6. The adsorption saturation capacity of CZ-FN is 420.22 and 250.45 mg/g for strontium and cesium, respectively. The solubility percentage of CZ-FN was calculated utilizing diverse molarities from HNO3, HCl, and NaOH as eluents, the obtained data reveals an increase in the solubility percentage with more increase in the molarity of the eluents. The elevation in the solubility percentage follows the following order; HNO3 < HCl < NaOH. The kinetic studies were applied using the nanolinear form of different kinetic models; it was found that the adsorption process obeys the nonlinear pseudo-second-order. According to equilibrium studies, the Langmuir model has been more accurate than the Freundlich model for adsorption in the case of binary systems. The values of Di for the strontium and cesium are 10−10 m2/s, which displays the chemisorption nature of this process. The greatest values of the desorption process for the strontium and cesium are 96.87% and 94.43 by 0.3 M of HNO3. This indicated that the carbon-coated ZrO2/Mn-Mg-Zn ferrites could be regenerated and recycled to remove strontium and cesium ions from waste streams.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Utilization of carbon-coated ZrO2/Mn-Mg-Zn ferrites nanostructures for the adsorption of Cs (I) and Sr (II) from the binary system: kinetic and equilibrium studies

Abdel Maksoud,

Murad,

Hassan

2023

BMC Chemistry

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Novel Easy‐to‐Synthesize Hydrazine Multi‐channel Detection and Adsorption Materials

Liu,

Zhao,

Liu

et al. 2024

Chin. J. Chem.

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Comprehensive SummaryHydrazine hydrate (DH) is a widely used chemical agent, but it is highly toxic. Thus, the development of low‐cost and easy‐to‐prepare materials for the detection and adsorption of DH is very significant. Herein, a novel and easy‐to‐prepare supramolecular smart material based on bisquinoline‐functionalized naphthalene diimide (DQ8) has been designed and synthesized. In the DQ8, the synergistic effect between quinoline and naphthalene diimide groups has been employed to improve the selectivity and sensitivity for binding of DH. The DQ8‐based crystalline porous material (DQ8‐CPM) can simultaneously detect and adsorb DH and produce noticeable fluorescence color changes after adsorption of DH vapor. More significantly, the DQ8‐CPM shows nice recycling performance on DH detection and adsorption. Meanwhile, a smart gel based on DQ8 (DQ8‐G) shows multi‐channel response for DH through color, fluorescence, and state changes. The DQ8 shows high selectivity and sensitivity for DH. The detection limit of DQ8 for DH is 8.6 × 10–7 mol/L. According to the investigation of the DH binding and response mechanism, the synergistic effect between quinoline and naphthalene diimide groups plays an important role in the DH response process. It's a simple and feasible way to develop materials for detection and adsorption of DH through synergistic effects.

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Recent progress of radionuclides separation by porous materials

Xie,

Yu,

Chen

et al. 2024

Sci. China Chem.

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Highly selective adsorption of radioactive cesium by novel calix[4]biscrown-6 functionalized millimetre-sized hierarchically porous carbon spheres

Cited by 14 publications

References 43 publications

Utilization of carbon-coated ZrO2/Mn-Mg-Zn ferrites nanostructures for the adsorption of Cs (I) and Sr (II) from the binary system: kinetic and equilibrium studies

Utilization of carbon-coated ZrO2/Mn-Mg-Zn ferrites nanostructures for the adsorption of Cs (I) and Sr (II) from the binary system: kinetic and equilibrium studies

Novel Easy‐to‐Synthesize Hydrazine Multi‐channel Detection and Adsorption Materials

Recent progress of radionuclides separation by porous materials

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