A Janus branch filter for washing machines: Simultaneous removal of microplastics and surfactants

Choi, Ji Hee; Jung, Young Ju; Kim, Hee-Ju; Seo, Yu Jin; Choi, Won San

doi:10.1016/j.chemosphere.2023.138741

Cited by 5 publications

(3 citation statements)

References 38 publications

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“…To test the removal ability of HMPs using AMP, carboxylate-terminated polystyrene (PS–COOH, 1.1 μm) was used. The removal of PS particles was monitored using UV–vis spectroscopy to determine the RE of the MPs dispersed in water. , The absorption peak of PS particles (1.1 μm) at 435 nm was evaluated as the amount of MP. Figure S1 shows the UV–vis absorption spectra of the PS solution (100 mg/L) before and after removal by AMP (rGO-MNP/Pdop/PEI brush/ODA).…”

Section: Resultsmentioning

confidence: 99%

Amphiphilic Magnetic Particles Dispersed in Water and Oil for the Removal of Hydrophilic and Hydrophobic Microplastics

Son,

Jung,

Koo

et al. 2024

ACS Appl. Mater. Interfaces

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The study explores the synthesis and versatile properties of amphiphilic magnetic particles (AMPs) achieved through sequential coatings. Modulating the hydrophobic content in the synthesis process allows for the formation of hydrophilic, amphiphilic, and hydrophobic magnetic particles, with stable AMPs synthesis achieved at a ratio of hydrophilic to hydrophobic portions of approximately 71 to 29%. These AMPs exhibited outstanding dispersion in both oil and water within an oil/water mixture. Polyethylenimine in the AMP primarily enhances the removal of hydrophilic microparticles and facilitates dispersion in water. On the other hand, octadecylamine is specifically designed for the effective elimination of hydrophobic microparticles and their dispersion in oil. AMPs demonstrated effective removal capabilities for both hydrophilic and hydrophobic microparticles in water as well as hydrophobic microparticles in 100% oil. Our approach is also suited for eliminating hydrophobic microparticles dispersed in small quantities of oil floating on large bodies of water in real-world situations.

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Section: Resultsmentioning

confidence: 99%

Amphiphilic Magnetic Particles Dispersed in Water and Oil for the Removal of Hydrophilic and Hydrophobic Microplastics

Son,

Jung,

Koo

et al. 2024

ACS Appl. Mater. Interfaces

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“…As this source of microplastic pollution cannot be feasibly removed, remediation methods for reducing the environmental impact are currently being studied within the literature. Reduction in environmental loading of microplastics from textiles has been seen through the physical remediation strategies of attaching filters to washing machines [ 25 , 26 ], and through chemical modifications applied during the production of the synthetic textile [ 27 ].…”

Section: Sources Of Microplastic Pollutionmentioning

confidence: 99%

Microplastics as an emerging contaminant of concern to our environment: a brief overview of the sources and implications

Stapleton

Hai

2023

Bioengineered

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Over the years, it has become evident that microplastics are one of the most important contaminants of concern requiring significant attention. The large abundance of microplastics that are currently in the environment poses potential toxicity risks to all organisms that are exposed to them. Microplastics have been found to affect the physiological and biological processes in marine and terrestrial organisms. As well as being a contaminant of concern in itself, microplastics also have the ability to act as vectors for other contaminants. The potential for microplastics to carry pollutants and transfer them to other organisms has been documented in the literature. Microplastics have also been linked to hosting antibiotic resistant bacteria and antibiotic resistance genes which poses a significant risk to the current health system. There has been a significant increase in research published surrounding the topic of microplastics over the last 5 years. As such, it is difficult to determine and find up to date and relevant information. This overview paper aims to provide a snapshot of the current and emerging sources of microplastics, how microplastics can act as a contaminant and have toxic effects on a range of organisms and also be a vector for a large variety of other contaminants of concern. The aim of this paper is to act as a tool for future research to reference relevant and recent literature in this field.

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“…Oily wastewater, a type of industrial wastewater, often contains hazardous aqueous pollutants. , Prior to discharge, it is necessary to separate the oil/water mixture and remove the aqueous pollutants from the water. While numerous studies have been conducted on oil/water separation, − only a limited number of researchers have focused on exploring materials and technologies that possess the ability to simultaneously achieve both oil/water separation and pollutant purification. − Two approaches, namely, the filter type and particle type, have been proposed for the removal of aqueous pollutants during oil/water separation. In the filter-type approach, the oil/water mixture is first separated, followed by the decomposition of organic matter in the water using a catalyst. − On the other hand, in the particle-type approach, the organic matter is decomposed using a particle catalyst, and then the oil/water mixture is separated using particles .…”

Section: Introductionmentioning

confidence: 99%

Compressible Separator and Catalyst for Simultaneous Separation and Purification of Emulsions and Aqueous Pollutants

Kim,

Jung,

Son

et al. 2023

ACS Omega

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Oily wastewater, a global environmental concern, demands efficient oil/water separation and pollutant removal. Our compressible separator and catalyst (CSC) balls, prepared through sponge etching and metal nanoparticle synthesis, exhibited efficient degradation of dyes of varying sizes, spanning a molecular weight range from 139 to 696 g/mol during the oil/water separation. Control over the distance between catalysts was achieved by incorporating Ag–Pt–Pd catalysts into the sponge skeleton and by adjusting the compression rates. The dispersion of the catalysts improved degradation efficiency for larger dyes, while concentrating the catalysts proved to be more effective for the smaller ones. By optimizing the compression rates of CSC balls, we successfully achieved the effective removal of emulsions of different sizes and precise control of flux. Our CSC ball-loaded system offers efficient and versatile solutions for concurrent separation and purification of emulsions and pollutants with potential environmental benefits.

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A Janus branch filter for washing machines: Simultaneous removal of microplastics and surfactants

Cited by 5 publications

References 38 publications

Amphiphilic Magnetic Particles Dispersed in Water and Oil for the Removal of Hydrophilic and Hydrophobic Microplastics

Amphiphilic Magnetic Particles Dispersed in Water and Oil for the Removal of Hydrophilic and Hydrophobic Microplastics

Microplastics as an emerging contaminant of concern to our environment: a brief overview of the sources and implications

Compressible Separator and Catalyst for Simultaneous Separation and Purification of Emulsions and Aqueous Pollutants

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