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Enhanced photocatalytic activity of Ag microgrid connected nanocrystalline films
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View: Figures


Image of FIG. 1.
FIG. 1.

Schematic photoexcitation events in the metal-connected semiconductor particles.

Image of FIG. 2.
FIG. 2.

(Color online) Typical morphology of Ag microgrid deposited on the film [(a) and (c)] and a specially magnified cell of the Ag grid [(b) and (d)] by SEM and AFM.

Image of FIG. 3.
FIG. 3.

(Color online) Schematic photocatalytic device. MB solution of was filled in a quartz beaker. A single-sidedly coated sample was immersed into the solution with the film upside. A low pressure mercury vapor lamp (, ) was set at the bottom to provide the UV irradiation.

Image of FIG. 4.
FIG. 4.

Photocatalytic decomposition of MB. Shown are the continual three time test of decomposing MB by the same and samples (first, second, and third) and a test after one month (fourth) of the same samples.

Image of FIG. 5.
FIG. 5.

Electroconductibility and photocatalytic activity of the samples with different sputtering times. Photocatalytic activity is represented by the residual concentration of MB solution which was photocatalytically decomposed by the sample for . Inserted is the transmission spectrum of the samples.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced photocatalytic activity of Ag microgrid connected TiO2 nanocrystalline films