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Photocatalytic Ohmic layered nanocomposite for efficient utilization of visible light photons
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10.1063/1.2266237
/content/aip/journal/apl/89/6/10.1063/1.2266237
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/6/10.1063/1.2266237

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Schematic illustrates technique adopted for fabrication of NCPC. The W metal clusters were deposited by MOCVD over the base of PBNTO that was formed by SSRs. The cluster surfaces were subsequently oxidized to attain the configuration shown in part (c). (b) Typical HRTEM of the fabricated NCPC showing the nanodimensional entities stacking over the surfaces of PBNTO base material. (c) Cross sectional schematic of a typical single -encapsulated W layer that stacks over base material of -type PBNTO.

Image of FIG. 2.
FIG. 2.

(Color online) Schematic energy band model diagram of the system shown in Fig. 1(c) displaying the formation of W interlayer between -type and -type metal oxide semiconductors. The band positions were derived from flatband potential measurements. CB and VB are conduction and valence bands, respectively. hydrogen electrode.

Image of FIG. 3.
FIG. 3.

(Color online) (a) UV-visible diffuse reflectance spectra of various materials. (b) Comparison of generated photocurrent under visible light irradiation (wavelength ) of various materials suspended in water containing acetate and , as an electron donor and acceptor, respectively. (c) Time course of evolution from various PC under VL irradiation during the degradation of acetaldehyde. Catalyst ; of acetaldehyde was injected into Pyrex reaction cell with a volume of . The concentrations were determined by a gas chromatograph equipped with TCD (molecular sieve ). (d) Time course of gas evolution from NCPC, PBNO, and under VL irradiation in an aqueous solution [distilled and ] by stirring of the catalyst loaded with Pt. The reaction system was evacuated every in order to remove gaseous products from the gas phase.

Tables

Generic image for table
Table I.

Photocatalytic activities for and evolution from aqueous solutions containing sacrificial agents.

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/content/aip/journal/apl/89/6/10.1063/1.2266237
2006-08-08
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photocatalytic Ohmic layered nanocomposite for efficient utilization of visible light photons
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/6/10.1063/1.2266237
10.1063/1.2266237
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