Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9408
Title: The effect of powder preparation method on the artificial photosynthesis activities of neodymium doped titania powders
Authors: Yurtsever, Hüsnü Arda
Çiftçioğlu, Muhsin
Keywords: Artificial photosynthesis
Neodymium
Titania
Co-precipitation
Publisher: Elsevier
Abstract: The effects of nanostructure on the artificial photosynthesis activities of undoped and Nd doped titania (TiO2) powders prepared by three different chemical co-precipitation methods were investigated. Substitutional/interstitial N and S doping was observed in powders due to the presence of high concentrations of HNO3 (NP) and H2SO4 (SP) in the powder preparation media, respectively. Nd, N and S doping caused anatase/rutile phase transformation inhibition and crystallite size reduction in the nanostructure. Light absorption was significantly enhanced by Nd doping and the residual SO42-/NOx species in the nanostructure. Photocatalytic hydrogen production activity of Nd doped NP powder was 4 times greater than undoped NP powder at 700 degrees C and had a high purity (CO:H-2 ratio similar to 0.00). CO was determined to be the main product in photocatalytic CO2 reduction. NP powders had the highest CO yields and Nd doping enhanced CO production. The powders with high crystallite sizes and rutile weight fractions had the highest artificial photosynthesis activities. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
URI: https://doi.org/10.1016/j.ijhydene.2018.08.185
https://hdl.handle.net/11147/9408
ISSN: 0360-3199
1879-3487
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File SizeFormat 
1-s2.0-S0360319918327605-main.pdf3.07 MBAdobe PDFView/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

7
checked on Mar 22, 2024

WEB OF SCIENCETM
Citations

5
checked on Mar 16, 2024

Page view(s)

1,662
checked on Mar 25, 2024

Download(s)

96
checked on Mar 25, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.