fulltext.study @t Gmail

Photocatalytic conversion of CO2 to hydrocarbon fuel using carbon and nitrogen co-doped sodium titanate nanotubes

Paper ID Volume ID Publish Year Pages File Format Full-Text
39133 45807 2015 9 PDF Available
Title
Photocatalytic conversion of CO2 to hydrocarbon fuel using carbon and nitrogen co-doped sodium titanate nanotubes
Abstract

•C, N co-doped titanate nanotubes are synthesized by a simple two-step method.•Varied dopant contents influences the optical and textural properties of materials.•C, N co-doped titanate nanotubes employed mainly for photocatalytic CO2 conversion.•The CO2 conversion was influenced by crystallinity, surface area, Na+ ions, and light absorption.

Carbon and nitrogen co-doped sodium titanate nanotubes (C,N-TNT) active under simulated solar light are synthesized by a simple two-step process comprising an alkaline hydrothermal technique followed by calcination. Different samples of C,N-TNT with varied dopant concentrations are achieved by changing the amount of urea as a nitrogen and carbon dopants. The photocatalysts are characterized using numerous experimental techniques, and under simulated solar light investigated for the photocatalytic conversion of CO2 and water vapor to CH4. The C,N-TNT sample with an intermediate doping concentration yields the maximum methane yield of 9.75 μmol/g h. The key factors contributing in the improvement of photocatalyst performance includes light absorption, surface area and Na+ ions concentration in TNT acting as CO2 adsorption site and photogenerated electrons recombination centers. The higher doping levels results in lower specific surface areas leading to decrease in photocatalyst performance. Our results suggest co-doping of nanostructured photocatalysts is an excellent pathway for improving textural and photocatalytic properties for the respective application domain.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (102 K)Download as PowerPoint slide

Keywords
Sodium titanate nanotubes; Carbon nitrogen co-doping; X-ray photoelectron spectroscopy; Photocatalytic CO2 conversion
First Page Preview
Photocatalytic conversion of CO2 to hydrocarbon fuel using carbon and nitrogen co-doped sodium titanate nanotubes
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 498, 5 June 2015, Pages 205–213
Authors
, , , , , ,
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