Magnetic/flow controlled continuous size fractionation of magnetic nanoparticles using simulated moving bed chromatography

Kuger, Laura; Arlt, Carsten-Rene; Franzreb, Matthias

doi:10.1016/j.talanta.2021.123160

Cited by 5 publications

(2 citation statements)

References 51 publications

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“…The findings of this study therefore highlight the potential of magnetic field-controlled chromatography, which may contribute to the development of more efficient and effective purification methods for the recycling of RE-containing EOL products. While further effort is needed to scale up the proposed method for industrial application, the possibility of increasing the column size and/ or applying continuous chromatography methods (as shown for the fractionation of superparamagnetic nanoparticle collectives in a previous work 44 ) underscores its practicality and applicability.…”

Section: Discussionmentioning

confidence: 99%

Design of a Magnetic Field-Controlled Chromatography Process for Efficient and Selective Fractionation of Rare Earth Phosphors from End-of-Life Fluorescent Lamps

Kuger,

Franzreb

2024

ACS Sustainable Chem. Eng.

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Rare earth-containing materials are essential for a wide range of modern technologies and have significant technological and economic importance. Therefore, the development of efficient separation and purification processes for these materials is crucial for environmental sustainability and resource conservation. In this study, we investigated the potential of magnetic field-controlled chromatography for the fractionation of different rare earth-containing phosphors from end-of-life fluorescent lamps. The results demonstrate that with the intrinsic magnetization of the phosphor particles and a careful choice of process parameters, we can control the separation outcome. An optimized gradient shape resulted in purities of up to 95.3% at recoveries of 93.6% (LaPO 4 :Ce 3+ ,Tb 3+ ). The aqueous eluent consumption was found to be quite modest at 4.1 L/g, and it contained only minimal quantities of nontoxic and biodegradable solvent. This study could have significant implications for the development of efficient and effective purification processes for rare earth-containing materials, which are primarily driven by economic concerns and environmental considerations. The possibility of scaling up the process by increasing the column size or transferring it to continuous processing methods could further enhance its practical applicability in industry.

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Section: Discussionmentioning

confidence: 99%

Design of a Magnetic Field-Controlled Chromatography Process for Efficient and Selective Fractionation of Rare Earth Phosphors from End-of-Life Fluorescent Lamps

Kuger,

Franzreb

2024

ACS Sustainable Chem. Eng.

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“…Nanotechnology is rapidly growing in many scientific fields, including chemistry, material sciences, physics, medicine, and electronics [1,2]. Materials in the range of nanometers to micrometers have been extensively studied in separation science in recent years [3][4][5][6]. The large surface area and highly ordered structure of small particles make them potent for use as chromatographic materials achieving highly efficient separation, according to the van Deemter equation [7].…”

Section: Introductionmentioning

confidence: 99%

Submicron Nonporous Silica Particles for Enhanced Separation Performance in pCEC

2023

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Applications of submicron-scale particles are of rising interest in separation science due to their favorable surface-to-volume ratio and their fabrication of highly ordered structures. The uniformly dense packing beds in columns assembled from nanoparticles combined with an electroosmotic flow-driven system has great potential in a highly efficient separation system. Here, we packed capillary columns using a gravity method with synthesized nanoscale C18-SiO2 particles having diameters of 300–900 nm. The separation of small molecules and proteins was evaluated in the packed columns on a pressurized capillary electrochromatography platform. The run-to-run reproducibility regarding retention time and peak area for the PAHs using a column packed with 300 nm C18-SiO2 particles were less than 1.61% and 3.17%, respectively. Our study exhibited a systematic separation analysis of small molecules and proteins based on the columns packed with submicron particles combined with the pressurized capillary electrochromatography (pCEC) platform. This study may provide a promising analytical approach with extraordinary column efficiency, resolution, and speed for the separation of complex samples.

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A scalable biomanufacturing platform for bacterial magnetosomes

Fernández-Castané,

Li,

Ebeler

et al. 2024

Food and Bioproducts Processing

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Magnetic/flow controlled continuous size fractionation of magnetic nanoparticles using simulated moving bed chromatography

Cited by 5 publications

References 51 publications

Design of a Magnetic Field-Controlled Chromatography Process for Efficient and Selective Fractionation of Rare Earth Phosphors from End-of-Life Fluorescent Lamps

Design of a Magnetic Field-Controlled Chromatography Process for Efficient and Selective Fractionation of Rare Earth Phosphors from End-of-Life Fluorescent Lamps

Submicron Nonporous Silica Particles for Enhanced Separation Performance in pCEC

A scalable biomanufacturing platform for bacterial magnetosomes

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