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01.07.2020 | Research paper

A mixed organic functionalized silica-graphene oxide as advanced material for pollutant removal

verfasst von: Sorin Avramescu, Simona Petrescu, Daniela C. Culita, Madalina Tudose, Anamaria Hanganu, Irina Zarafu, Petre Ionita

Erschienen in: Journal of Nanoparticle Research | Ausgabe 7/2020

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Abstract

Graphene oxide has been functionalized with crown-ether moieties, while silica has been functionalized with stable free radicals of nitroxide type. These two materials and their mixture were firstly characterized by IR, ESR, SEM, and Raman spectroscopy, and secondly tested further for removal of some organic and inorganic pollutants from water, like benzyl alcohol, methylene blue dye, iron (II), and copper (II) ions. It is well known that graphene oxide, as well as crown-ether compounds, has a high capacity to bind transition metal ions, whereas nitroxide free radicals are able to oxidize, under certain conditions, organic compounds. Consequently, our experiments evaluated these materials and showed that they may act synergistically in order to simultaneously remove metal ions and organic pollutants.

Vorheriger Artikel Microemulsion synthesis of anhydrous calcium sulfate nanowhiskers with calcium acetate solution and its surface structure stable and crystal phase evolution after modification

Nächster Artikel Cytotoxic effects of novel solvothermal synthesised Ag-doped PEGylated WO3 sheet-like nanocomposites on MCF-7 human breast cancer cells

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Titel: A mixed organic functionalized silica-graphene oxide as advanced material for pollutant removal
verfasst von: Sorin Avramescu
Simona Petrescu
Daniela C. Culita
Madalina Tudose
Anamaria Hanganu
Irina Zarafu
Petre Ionita
Publikationsdatum: 01.07.2020
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 7/2020
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-020-04935-2

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