skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The effect of oxygen vacancies on water wettability of transition metal based SrTiO3 and rare-earth based Lu2O3

Journal Article · · RSC Advances
DOI:https://doi.org/10.1039/c6ra22391e· OSTI ID:1492050
 [1];  [1];  [1];  [2];  [3];  [3];  [1];  [1];  [3];  [4];  [5]
  1. National Univ. of Singapore (NUS), Singapore (Singapore). NUSNNI-NanoCore
  2. National Univ. of Singapore (NUS), Singapore (Singapore). NUSNNI-NanoCore, NUS Graduate School for Integrative Sciences and Engineering
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Electrochemical Energy Lab.
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Electrochemical Energy Lab.; Univ. of Milano-Bicocca, Milano (Italy). Dept. of Material Science
  5. National Univ. of Singapore (NUS), Singapore (Singapore). NUSNNI-NanoCore, Dept. of Electrical Engineering, NUS Graduate School for Integrative Sciences and Engineering, Dept. of Materials Science and Engineering, Dept. of Physics, Faculty of Science
+ Show Author Affiliations

Understanding the structural, physical and chemical properties of the surface and interfaces of different metal-oxides and their possible applications in photo-catalysis and biology is a very important emerging research field. Motivated in this direction, this article would enable understanding of how different fluids, particularly water, interact with oxide surfaces. We have studied the water contact angle of 3d transition metal oxide thin films of SrTiO3, and of 4f rare-earth oxide thin films of Lu2O3. These metal oxides were grown using pulsed laser deposition and they are atomically flat and with known orientation and explicitly characterized for their structure and composition. Further study was done on the effects of oxygen vacancies on the water contact angle of the 3d and 4f oxides. For 3d SrTiO3 oxide with oxygen vacancies, we have observed an increase in hydroxylation with consequent increase of wettability which is in line with the previous reports whereas an interesting opposite trend was seen in the case of rare-earth Lu2O3 oxide. Density functional theory simulations of water interaction on the above mentioned systems have also been presented to further substantiate our experimental findings.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1492050
Journal Information:
RSC Advances, Vol. 6, Issue 110; ISSN 2046-2069
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

References (39)

Blue-light emission at room temperature from Ar+-irradiated SrTiO3 journal October 2005
Effect of Surface Polarity on Water Contact Angle and Interfacial Hydration Structure journal August 2007
Surface morphology effects on the light-controlled wettability of ZnO nanostructures journal August 2012
Ab Initio Calculations of Supramolecular Recognition Modes. Cyclic versus Noncyclic Hydrogen Bonding in the Formic Acid/Formamide System journal June 1994
Wetting and Roughness journal August 2008
UV-Driven Reversible Switching of a Roselike Vanadium Oxide Film between Superhydrophobicity and Superhydrophilicity journal April 2007
Photoinduced Surface Wettability Conversion of ZnO and TiO 2 Thin Films journal March 2001
Tunable and reversible surface wettability transition of vertically aligned ZnO nanorod arrays journal May 2009
Controlling Wettability and Photochromism in a Dual-Responsive Tungsten Oxide Film journal February 2006
Oxygen vacancies on TiO2(110) and their interaction with H2O and O2: A combined high-resolution STM and DFT study journal December 2005
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Superhydrophilic TiO2 surface without photocatalytic activation journal March 2010
The effect of oxygen vacancies on water wettability of a ZnO surface journal January 2013
Role of surface oxygen-to-metal ratio on the wettability of rare-earth oxides journal February 2015
Bio-Inspired Titanium Dioxide Materials with Special Wettability and Their Applications journal May 2014
Ti3+ Defect Sites on TiO2(110): Production and Chemical Detection of Active Sites journal November 1994
Noncontact atomic force microscopy imaging of water dissociation products on TiO 2 ( 110 ) journal August 2006
Metal-Insulator Transition in SrTiO 3 − x Thin Films Induced by Frozen-Out Carriers journal September 2011
Photocatalysis and hydrophilicity of doped TiO2 thin films journal November 2003
Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation journal September 1992
Comparison of photochemical properties of brookite and anatase TiO2 films journal January 2004
Excess electron states in reduced bulk anatase TiO2: Comparison of standard GGA, GGA+U, and hybrid DFT calculations journal October 2008
Reversible Photoinduced Wettability Transition of Hierarchical ZnO Structures journal January 2009
Ultrafast switching in wetting properties of TiO 2 /YSZ/Si(001) epitaxial heterostructures induced by laser irradiation journal February 2013
Formation and Splitting of Paired Hydroxyl Groups on Reduced TiO 2 ( 110 ) journal February 2006
Surface Roughness and Contact Angle. journal September 1949
Thermally Induced Superhydrophilicity in TiO 2 Films Prepared by Supersonic Aerosol Deposition journal June 2013
Reversible Super-hydrophobicity to Super-hydrophilicity Transition of Aligned ZnO Nanorod Films journal January 2004
Photoinduced Surface Reactions on TiO 2 and SrTiO 3 Films:  Photocatalytic Oxidation and Photoinduced Hydrophilicity journal January 2000
Light-induced amphiphilic surfaces journal July 1997
Visible-light induced hydrophilicity on nitrogen-substituted titanium dioxide films journal January 2003
Effect of oxygen vacancies in the SrTiO 3 substrate on the electrical properties of the LaAlO 3 ∕ SrTiO 3 interface journal March 2007
Electronic Structure of Defect States in Hydroxylated and Reduced Rutile TiO 2 ( 110 ) Surfaces journal October 2006
UV-Manipulated wettability between superhydrophobicity and superhydrophilicity on a transparent and conductive SnO2 nanorod film journal January 2006
Localized and Itinerant States in Lanthanide Oxides United by G W   @   LDA + U journal March 2009
The Fabrication and Switchable Superhydrophobicity of TiO2 Nanorod Films journal August 2005
Direct visualization of defect-mediated dissociation of water on TiO2(110) journal February 2006
Controlling Wettability and Photochromism in a Dual-Responsive Tungsten Oxide Film journal February 2006
The Fabrication and Switchable Superhydrophobicity of TiO2 Nanorod Films journal August 2005

Cited By (6)

The Origin of Superhydrophobicity for Intrinsically Hydrophilic Metal Oxides: A Preferential O 2 Adsorption Dominated by Oxygen Vacancies journal November 2019
The Origin of Superhydrophobicity for Intrinsically Hydrophilic Metal Oxides: A Preferential O 2 Adsorption Dominated by Oxygen Vacancies journal November 2019
Charge disproportionate molecular redox for discrete memristive and memcapacitive switching journal March 2020
Intrinsic hydrophilic nature of epitaxial thin-film of rare-earth oxide grown by pulsed laser deposition journal January 2018
Crystallographic orientation–surface energy–wetting property relationships of rare earth oxides journal January 2018
Ethanol gas sensing improvement at high humidity levels and optical features using Ba-doped ZnO NPs journal July 2019

Figures / Tables (7)

Fig. 1(p. 2)figure Fig. 1
Fig. 2(p. 3)figure Fig. 2
Fig. 3(p. 3)figure Fig. 3
Fig. 4(p. 4)figure Fig. 4
Fig. 5(p. 4)figure Fig. 5
Fig. 6(p. 5)figure Fig. 6
Fig. 7(p. 5)figure Fig. 7

Similar Records

Related Subjects

36 MATERIALS SCIENCE