Magnetic solid-phase extraction of strontium using core–shell structured magnetic microspheres impregnated with crown ether receptors: a response surface optimization

Rong, Yi; Ye, Gang; Wu, Fengcheng; Lv, Dachao; Chen, Jing

doi:10.1007/s10967-015-4468-8

Cited by 23 publications

(2 citation statements)

References 27 publications

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“…is process has the properties of dynamic equilibrium, so that the supramolecular structure has the characteristics of multiple structures, forming special assemblies with different structures, different states, and different compositions [12].…”

Section: Synthesis Methods Of Supramolecular Materialsmentioning

confidence: 99%

Synthesis and Properties of Supramolecular Crops Based on PNZST Antiferroelectric Film

Zhou

2022

Advances in Materials Science and Engineering

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With the rapid development of ecological agriculture and the continuous changes of the ecological environment, crops are facing tremendous challenges. At the same time, people’s demand for the number and variety of crops is gradually increasing, so the synthesis and performance improvement of crops is imminent. The emergence of supramolecular crops has brought about huge changes in the yield of crops. In this paper, for the purpose of reducing the cost of crops and enhancing the ability of crops to adapt to the environment, PNZST antiferroelectric film materials are used to study the synthesis of supramolecular crops. Among them, rice, corn, and soybeans are used as reference objects for synthetic crops. Experiments were carried out in four aspects: growth rate, growth cycle, and yield. The growth status of the three crops in the past four years was monitored and recorded and analyzed. The survival rate of traditional rice was 86.3%–89.5%, the growth cycle was 86–90 days, and the yield was 69–77 kg/ha; the survival rate of traditional corn was 85.6%–89%, the growth cycle was 105–114 days, and the yield was 38–43 kg/ha; the survival rate of traditional soybean was 85.6%–89%, the growth cycle was 85–90 days, and the output was 14–16 kg/ha. The survival rate of synthetic rice was 95.5%–96.9%, the growth cycle was 63–66 days, and the yield was 83–86 kg/ha; the survival rate of synthetic corn was 97.3%–98.7%, the growth cycle was 85–95 days, and the yield was 53–56 kg/ha; the survival rate of synthetic soybeans was 96.3%–98.3%, the growth cycle was 59–68 days, and the yield was 29–33 kg/ha.

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Section: Synthesis Methods Of Supramolecular Materialsmentioning

confidence: 99%

Synthesis and Properties of Supramolecular Crops Based on PNZST Antiferroelectric Film

Zhou

2022

Advances in Materials Science and Engineering

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“…Crown ethers are an important class of macrocyclic ligands which display a conspicuous selectivity to metal ions based on the host-guest interaction. In the past few decades, crown ethers have been widely researched and applied in diverse areas since it was discovered by Pedersen in 1967 [10], including isotope separations [11,12], phase transfer catalysts [13,14], ions determination sensors [15,16], ions separation [17,18], and so on. The binding abilities of crown ethers with metal ions are mainly decided by the structures of crown ethers which can be adjusted by the crown cavity size, donor atoms and substituent groups (electron withdrawing or electron donating groups).…”

Section: Introductionmentioning

confidence: 99%

Density functional theory study of selectivity of crown ethers to Li+ in spent lithium-ion batteries leaching solutions

Yao

Zhu

Zhao

et al. 2019

Chinese Journal of Chemical Physics

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It is a challenge to recover lithium from the leaching solution of spent lithium-ion batteries, and crown ethers are potential extractants due to their selectivity to alkali metal ions. The theoretical calculations for the selectivity of crown ethers with different structures to Li ions in aqueous solutions were carried out based on the density functional theory. The calculated results of geometries, binding energies, and thermodynamic parameters show that 15C5 has the strongest selectivity to Li ions in the three crown ethers of 12C4, 15C5, and 18C6. B15C5 has a smaller binding energy but more negative free energy than 15C5 when combined with Li + , leading to that the lithium ions in aqueous solutions will combine with B15C5 rather than 15C5. The exchange reactions between B15C5 and hydrated Li + , Co 2+ , and Ni 2+ were analyzed and the results show that B15C5 is more likely to capture Li + from the hydrated ions in an aqueous solution containing Li + , Co 2+ , and Ni 2+. This study indicates that it is feasible to extract Li ions selectively using B15C5 as an extractant from the leaching solution of spent lithium-ion batteries.

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Sodium(I)-doped graphitic carbon nitride with appropriate interlayer distance as a highly selective sorbent for strontium(II) prior to its determination by ICP-OES

Kang

Zhang

et al. 2019

Microchim Acta

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Magnetic solid-phase extraction of strontium using core–shell structured magnetic microspheres impregnated with crown ether receptors: a response surface optimization

Cited by 23 publications

References 27 publications

Synthesis and Properties of Supramolecular Crops Based on PNZST Antiferroelectric Film

Synthesis and Properties of Supramolecular Crops Based on PNZST Antiferroelectric Film

Density functional theory study of selectivity of crown ethers to Li+ in spent lithium-ion batteries leaching solutions

Sodium(I)-doped graphitic carbon nitride with appropriate interlayer distance as a highly selective sorbent for strontium(II) prior to its determination by ICP-OES

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