XPS and FTIR investigation of the surface properties of different prepared titania nano-powders

Henrik Jensen; Alexey Solovyev; Zheshen Lie; Erik Gydesen Søgaard

XPS and FTIR investigation of the surface properties of different prepared titania nano-powders

Henrik Jensen, Alexey Solovyev, Zheshen Lie, Erik Gydesen Søgaard

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

Abstract

Surface studies of nano-sized TiO2 powders prepared by different methods showed that the preparation method had great impact on the surface properties. XPS measurements showed that the oxygen composition was related to the preparation method. The chloride method yielded the lowest amount of surface oxygen (29%) and sol–gel prepared powder showed the greatest amount of surface oxygen (66%) in the form of surface hydroxyl groups. The remaining oxygen was identified as lattice oxygen. The powder prepared by the sol–gel method contained carbon impurities originating from residual alkoxy groups. Supercritical sol–gel prepared powder and powder prepared by the sulphate method revealed same trends regarding oxygen composition with 44–47% being surface oxygen; neither contained carbon impurities. The results obtained from XPS were confirmed by FTIR measurements.
Udgivelsesdato: JUN 15

Originalsprog	Engelsk
Tidsskrift	Applied Surface Science
Vol/bind	246
Udgave nummer	1-3
Sider (fra-til)	239-249
Antal sider	11
ISSN	0169-4332
Status	Udgivet - 2005

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title = "XPS and FTIR investigation of the surface properties of different prepared titania nano-powders",

abstract = "Surface studies of nano-sized TiO2 powders prepared by different methods showed that the preparation method had great impact on the surface properties. XPS measurements showed that the oxygen composition was related to the preparation method. The chloride method yielded the lowest amount of surface oxygen (29%) and sol–gel prepared powder showed the greatest amount of surface oxygen (66%) in the form of surface hydroxyl groups. The remaining oxygen was identified as lattice oxygen. The powder prepared by the sol–gel method contained carbon impurities originating from residual alkoxy groups. Supercritical sol–gel prepared powder and powder prepared by the sulphate method revealed same trends regarding oxygen composition with 44–47% being surface oxygen; neither contained carbon impurities. The results obtained from XPS were confirmed by FTIR measurements.",

keywords = "TiO2, Surface hydroxyl groups, Preparation methods, XPS, FTIR",

author = "Henrik Jensen and Alexey Solovyev and Zheshen Lie and S{\o}gaard, {Erik Gydesen}",

year = "2005",

language = "English",

volume = "246",

pages = "239--249",

journal = "Applied Surface Science",

issn = "0169-4332",

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TY - JOUR

T1 - XPS and FTIR investigation of the surface properties of different prepared titania nano-powders

AU - Jensen, Henrik

AU - Solovyev, Alexey

AU - Lie, Zheshen

AU - Søgaard, Erik Gydesen

PY - 2005

Y1 - 2005

N2 - Surface studies of nano-sized TiO2 powders prepared by different methods showed that the preparation method had great impact on the surface properties. XPS measurements showed that the oxygen composition was related to the preparation method. The chloride method yielded the lowest amount of surface oxygen (29%) and sol–gel prepared powder showed the greatest amount of surface oxygen (66%) in the form of surface hydroxyl groups. The remaining oxygen was identified as lattice oxygen. The powder prepared by the sol–gel method contained carbon impurities originating from residual alkoxy groups. Supercritical sol–gel prepared powder and powder prepared by the sulphate method revealed same trends regarding oxygen composition with 44–47% being surface oxygen; neither contained carbon impurities. The results obtained from XPS were confirmed by FTIR measurements.

AB - Surface studies of nano-sized TiO2 powders prepared by different methods showed that the preparation method had great impact on the surface properties. XPS measurements showed that the oxygen composition was related to the preparation method. The chloride method yielded the lowest amount of surface oxygen (29%) and sol–gel prepared powder showed the greatest amount of surface oxygen (66%) in the form of surface hydroxyl groups. The remaining oxygen was identified as lattice oxygen. The powder prepared by the sol–gel method contained carbon impurities originating from residual alkoxy groups. Supercritical sol–gel prepared powder and powder prepared by the sulphate method revealed same trends regarding oxygen composition with 44–47% being surface oxygen; neither contained carbon impurities. The results obtained from XPS were confirmed by FTIR measurements.

KW - TiO2

KW - Surface hydroxyl groups

KW - Preparation methods

KW - XPS

KW - FTIR

M3 - Journal article

SN - 0169-4332

VL - 246

SP - 239

EP - 249

JO - Applied Surface Science

JF - Applied Surface Science

IS - 1-3

ER -

XPS and FTIR investigation of the surface properties of different prepared titania nano-powders

Abstract

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