Abstract
The photoreduction of graphene oxide (GO) using ketyl radicals is demonstrated for the first time. The use of photochemical reduction through ketyl radicals generated by I-2959 or (1-[4-(2-hydroxyethoxy)phenyl]-2-hydroxy-2-methyl-1-propan-1-one) is interesting because it affords spatial and temporal control of the reduction process. Graphene-metal nanoparticle hybrids of Ag, Au, and Pd were also photochemically fabricated in a one-pot procedure. Comprehensive spectroscopic and imaging techniques were carried out to fully characterize the materials. The nanoparticle hybrids showed promising action for the catalytic degradation of model environmental pollutants, namely, 4-nitrophenol, Rose Bengal, and Methyl Orange. The process described can be extended to polymer nanocomposites that can be photopatterned and could be potentially extended to fabricating plastic electronic devices.
Original language | English |
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Pages (from-to) | 24887-24898 |
Number of pages | 12 |
Journal | ACS Applied Materials and Interfaces |
Volume | 9 |
Issue number | 29 |
DOIs | |
Publication status | Published - 2017 Jul 26 |
Externally published | Yes |
Keywords
- environmental pollutants
- graphene oxide
- ketyl radicals
- metal nanoparticles
- photochemical synthesis
- photopatterning
ASJC Scopus subject areas
- Materials Science(all)