Graphene oxide as a photocatalytic material

Journal Article · Mon Jun 13 04:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3599453· OSTI ID:21518489

Krishnamoorthy, Karthikeyan ^[1]; Mohan, Rajneesh ^[2]; Kim, S -J ^[1]

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1. Nanomaterials and System Lab, Department of Mechanical System Engineering, Jeju National University, Jeju 690-756 (Korea, Republic of)
2. Department of Mechatronics Engineering, Jeju National University, Jeju 690-756 (Korea, Republic of)

The photocatalytic characteristics of graphene oxide (GO) nanostructures synthesized by modified Hummer's method were investigated by measuring reduction rate of resazurin (RZ) into resorufin (RF) as a function of UV irradiation time. The progress of the photocatalytic reaction was monitored by change in color from blue (RZ) into pink (RF) followed by absorption spectra. It exhibited excellent photocatalytic activity, leading to the reduction of RZ in UV irradiation. The fitting of absorbance maximum versus time suggests that the reduction of RZ follow the pseudo first-order reaction kinetics. These results indicate that GO have great potential for use as a photocatalyst.

• OSTI ID: 21518489
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 24 Vol. 98; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
ABSORPTION SPECTRA
CARBON
CARBON COMPOUNDS
CARBON OXIDES
CATALYSIS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
DISSOCIATION
ELECTROMAGNETIC RADIATION
ELEMENTS
HONEYCOMB STRUCTURES
KINETICS
MATERIALS
MECHANICAL STRUCTURES
NANOSTRUCTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHOTOCATALYSIS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATIONS
REACTION KINETICS
SEMICONDUCTOR MATERIALS
SORPTION
SPECTRA
ULTRAVIOLET RADIATION
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA