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A dye-sensitized FeOOH–CNT photocatalyst with three electron transfer channels regulated by hydrogen bonding

Paper ID Volume ID Publish Year Pages File Format Full-Text
46342 46437 2013 7 PDF Available
Title
A dye-sensitized FeOOH–CNT photocatalyst with three electron transfer channels regulated by hydrogen bonding
Abstract

A dye-sensitized photocatalyst with three electron transfer channels was constructed, in which FeOOH and photosensitizer RuL2Cl2·2H2O were employed as the electron donor, carbon nanotubes were served as the electron container. The catalytic activities of the photocatalyst were evaluated by a model photocatalytic carboxylation reaction of phenol by CO2. The photocatalytic efficiency and transient photocurrent density increased obviously when the catalysis reaction was carried out in cyclohexane compared to two electron activations in water, which suggested the formation of three electron transfer channels in the catalytic system. Moreover, time-dependent density functional theory (TD-DFT) calculation results also indicated the existence of three electron transfer channels assisted by intermolecular hydrogen bonding interaction.

Graphical abstractA RuL2Cl2–FeOOH–CNT catalyst with three electron transfer channels in cyclohexane performs better photocatalytic efficiency than those with one or two channels. Theoretical calculation results further explained the formation of three electron transfer channels driven by intermolecular hydrogen bonding.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A RuL2Cl2–FeOOH–CNT composite was constructed by esterification method. ► The composite was used as a visible light photocatalyst for 2-hydroxybenzoic acid. ► The photocatalyst possessed 3 electron transfer channels in nonpolar solvents. ► The activity of photocatalyst was much better than that of reported photocatalysts.

Keywords
Photocatalysis; Electron transfer; Three channels; Hydrogen bonding
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A dye-sensitized FeOOH–CNT photocatalyst with three electron transfer channels regulated by hydrogen bonding
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 136–137, 5 June 2013, Pages 334–340
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us