Water Purification and Microplastics Removal Using Magnetic Polyoxometalate‐Supported Ionic Liquid Phases (magPOM‐SILPs)

Misra, Archismita; Zambrzycki, Christian; Kloker, Gabriele; Kotyrba, Anika; Anjass, Montaha; Castillo, Isabel Franco; Mitchell, Scott G.; Güttel, Robert; Streb, Carsten

doi:10.1002/anie.201912111

Cited by 200 publications

(83 citation statements)

References 34 publications

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“…Ionic liquids (ILs) are salts with a melting point <100 • C, whose structure can be tuned to access physicochemical properties such as wide electrochemical window, high thermal stability and null vapour pressure [21][22][23]. Importantly, unique properties of POM-ILs have been harnessed for universal pollutant removal [24] and reactive surface protecting anti-corrosion coatings [25][26][27] because both the anion and cation can be tailored to target biological, organic and inorganic pollutants including microbes, acids and reactive oxygen species [28]. Their rheological properties and hydrophobicity can also be tuned by chemical design, which are important to obtain surface coatings.…”

Section: Introductionmentioning

confidence: 99%

Antifungal Activity of Polyoxometalate-Ionic Liquids on Historical Brick

et al. 2020

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Moulds inhabiting mineral-based materials may cause their biodeterioration, contributing to inestimable losses, especially in the case of cultural heritage objects and architectures. Fungi in mouldy buildings may also pose a threat to human health and constitute the main etiological factor in building related illnesses. In this context, research into novel compounds with antifungal activity is of high importance. The aim of this study was to evaluate the antifungal activity of polyoxometalate-ionic liquids (POM-ILs) and their use in the eradication of moulds from historical brick. In the disc diffusion assay, all the tested POM-ILs inhibited growth of a mixed culture of moulds including Engyodontium album, Cladosporium cladosporioides, Alternaria alternata and Aspergillus fumigatus. These were isolated from the surfaces of historical brick barracks at the Auschwitz II-Birkenau State Museum in Oświęcim, Poland. POM-IL coatings on historical brick samples, under model conditions, showed that two compounds demonstrated very high antifungal activity, completely limiting mould growth and development. The antifungal activity of the POM-ILs appeared to stem from their toxic effects on conidia, as evidenced by environmental scanning transmission electron microscopy observations. The results herein indicated that POM-ILs are promising disinfectant materials for use not only on historical objects, but probably also on other mineral-based materials.

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Section: Introductionmentioning

confidence: 99%

Antifungal Activity of Polyoxometalate-Ionic Liquids on Historical Brick

et al. 2020

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“…This demonstrates that this sampling device is suitable to capture a wide range of particle sizes. Unlike the previous methods, Misra et al (2019) developed a novel procedure using ionic liquids [55]. This approach is based on nanoparticles with a core of magnetic iron oxide and a shell of porous silicon dioxide.…”

Section: Removal Of Microplastics: From Laboratory To Large Scalementioning

confidence: 99%

Microplastics in Ecosystems: From Current Trends to Bio-Based Removal Strategies

et al. 2020

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Plastics are widely used due to their excellent properties, inexpensiveness and versatility leading to an exponential consumption growth during the last decades. However, most plastic does not biodegrade in any meaningful sense; it can exist for hundreds of years. Only a small percentage of plastic waste is recycled, the rest being dumped in landfills, incinerated or simply not collected. Waste-water treatment plants can only minimize the problem by trapping plastic particles of larger size and some smaller ones remain within oxidation ponds or sewage sludge, but a large amount of microplastics still contaminate water streams and marine systems. Thus, it is clear that in order to tackle this potential ecological disaster, new strategies are necessary. This review aims at briefly introducing the microplastics threat and critically discusses emerging technologies, which are capable to efficiently clean aqueous media. Special focus is given to novel greener approaches based on lignocellulose flocculants and other biomaterials. In the final part of the present review, it was given a proof of concept, using a bioflocculant to remove micronized plastic from aqueous medium. The obtained results demonstrate the huge potential of these biopolymers to clean waters from the microplastics threat, using flocculants with appropriate structure.

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“…The same research group reported the magnetically separable adsorbent comprising of lacunary POM adsorbed on the magnetite-silica composite. [11] Recently, poly(ionic liquids)-POM hybrid was prepared by ionic self assembly process. [12] The selective adsorption of dyes can be regulated by changing the proportion of poly ionic liquids and [Mo 8 O 26] 4À .…”

Section: Introductionmentioning

confidence: 99%

Surfactant Encapsulated Iron (III) Coordinated Phosphomolybdate Hybrid: A Novel Adsorbent for the Selective Removal of Anionic Dyes

Chandhru

Ramalingam

Manickam³

et al. 2020

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In this work, Keggin type phosphomolybdate inorganic‐organic hybrid material coordinated to with iron was synthesized by hydrothermal process followed by precipitation with organic cation. The prepared hybrid was fully characterized using conventional spectroscopic techniques. The adsorption efficiencies of the hybrid were evaluated for the removal of both anionic and cationic dyes from aqueous solutions. From the studies, it was concluded that hybrid has high adsorption as well as high selectivity for anionic dyes than cationic dyes. The results from the adsorption experiments revealed that the hybrid have specific methyl orange dye removal efficiency ≥96 % for 20 mgL−1 concentration. The reaction kinetics and adsorption isotherm also discussed.

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Water Purification and Microplastics Removal Using Magnetic Polyoxometalate‐Supported Ionic Liquid Phases (magPOM‐SILPs)

Cited by 200 publications

References 34 publications

Antifungal Activity of Polyoxometalate-Ionic Liquids on Historical Brick

Antifungal Activity of Polyoxometalate-Ionic Liquids on Historical Brick

Microplastics in Ecosystems: From Current Trends to Bio-Based Removal Strategies

Surfactant Encapsulated Iron (III) Coordinated Phosphomolybdate Hybrid: A Novel Adsorbent for the Selective Removal of Anionic Dyes

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