Interactions of graphene oxide nanomaterials with natural organic matter and metal oxide surfaces

Indranil Chowdhury, Matthew C. Duch, Nikhita D. Mansukhani, Mark C Hersam, Dermont Bouchard

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Interactions of graphene oxide (GO) nanomaterials with natural organic matter (NOM) and metal oxide surfaces were investigated using a quartz crystal microbalance with dissipation monitoring (QCM-D). Three different types of NOM were studied: Suwannee River humic and fulvic acids (SRHA and SRFA) and alginate. Aluminum oxide surface was used as a model metal oxide surface. Deposition trends show that GO has the highest attachment on alginate, followed by SRFA, SRHA, and aluminum oxide surfaces, and that GO displayed higher interactions with all investigated surfaces than with silica. Deposition and release behavior of GO on aluminum oxide surface is very similar to positively charged poly-L-lysine-coated surface. Higher interactions of GO with NOM-coated surfaces are attributed to the hydroxyl, epoxy, and carboxyl functional groups of GO; higher deposition on alginate-coated surfaces is attributed to the rougher surface created by the extended conformation of the larger alginate macromolecules. Both ionic strength (IS) and ion valence (Na+ vs Ca2+) had notable impact on interactions of GO with different environmental surfaces. Due to charge screening, increased IS resulted in greater deposition for NOM-coated surfaces. Release behavior of deposited GO varied significantly between different environmental surfaces. All surfaces showed significant release of deposited GO upon introduction of low IS water, indicating that deposition of GO on these surfaces is reversible. Release of GO from NOM-coated surfaces decreased with IS due to charge screening. Release rates of deposited GO from alginate-coated surface were significantly lower than from SRHA and SRFA-coated surfaces due to trapping of GO within the rough surface of the alginate layer.

Original languageEnglish
Pages (from-to)9382-9390
Number of pages9
JournalEnvironmental Science and Technology
Volume48
Issue number16
DOIs
Publication statusPublished - Aug 19 2014

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Nanostructures
Nanostructured materials
Biological materials
Oxides
Metals
oxide
organic matter
alginate
Osmolar Concentration
Aluminum Oxide
Ionic strength
aluminum oxide
metal oxide
Quartz Crystal Microbalance Techniques
Humic Substances
Screening
Rivers
Silicon Dioxide
Hydroxyl Radical

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Medicine(all)

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Interactions of graphene oxide nanomaterials with natural organic matter and metal oxide surfaces. / Chowdhury, Indranil; Duch, Matthew C.; Mansukhani, Nikhita D.; Hersam, Mark C; Bouchard, Dermont.

In: Environmental Science and Technology, Vol. 48, No. 16, 19.08.2014, p. 9382-9390.

Research output: Contribution to journalArticle

Chowdhury, Indranil ; Duch, Matthew C. ; Mansukhani, Nikhita D. ; Hersam, Mark C ; Bouchard, Dermont. / Interactions of graphene oxide nanomaterials with natural organic matter and metal oxide surfaces. In: Environmental Science and Technology. 2014 ; Vol. 48, No. 16. pp. 9382-9390.
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