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Toward enhancement of TiO2 surface defect sites related to photocatalytic activity via facile nitrogen doping strategy

Paper ID Volume ID Publish Year Pages File Format Full-Text
49773 46765 2016 5 PDF Available
Title
Toward enhancement of TiO2 surface defect sites related to photocatalytic activity via facile nitrogen doping strategy
Abstract

•Nitrogen doping occurred readily on the near surfaces of PdO in Pd@TiO2.•Nitrogen doping leads to generate Ti3 + species or oxygen vacancies site of the surface.•Nitrogen-doped Pd@TiO2 nanostructured nanoparticles can provide good catalytic activity toward the oxidation reaction.

This study examined the catalytic activities of three distinct N–Pd@TiO2 nanoparticles, post-annealed (at 700, 800, and 900 °C) after fabrication on silicon substrates. Systematically, HRPES and SPEM indicated that nitrogen was predominantly doped around PdO nanostructure. Particularly, we prove that photocatalytic activity in effective nitrogen doped surface area is far higher than in undoped area of Pd@TiO2 nanoparticles by measuring for oxidation reaction of benzenethiol, thioacetic acid, and thiobenzoic acid. Besides to the band gap narrowing, nitrogen doping leads to generate Ti3 + species or oxygen vacancies site of the surface, which leads to enhance the activity of surface photocatalysis.

Graphical abstractCatalytic oxidation reactions of benzenethiol, thioacetic acid, and thiobenzoic acid on N–Pd@TiO2Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
N-doped Pd@TiO2; NH3 treatment surface defect; Catalytic oxidation; STXM; HRPES
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Toward enhancement of TiO2 surface defect sites related to photocatalytic activity via facile nitrogen doping strategy
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 81, 5 June 2016, Pages 45–49
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