Underwater superoleophobicity of a robust rough titanium dioxide surface formed on titanium substrate by acid treatment

Shunsuke Nishimoto; Misaki Ota; Yoshikazu Kameshima; Michihiro Miyake

doi:10.1016/j.colsurfa.2014.10.009

Underwater superoleophobicity of a robust rough titanium dioxide surface formed on titanium substrate by acid treatment

Shunsuke Nishimoto, Misaki Ota, Yoshikazu Kameshima, Michihiro Miyake

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

A robust rough titanium dioxide (TiO₂) surface was prepared by acid treatment of a Ti plate and mesh. By ultraviolet (UV) irradiation, the surface exhibited superhydrophilicity and superoleophilicity in air and underwater superoleophobicity. Due to the rough surface, the underwater superoleophobicity was observed, even after dark storage for 1 week under the ambient atmosphere. The robust rough TiO₂ mesh with a pore size of approximately 150μm functioned as a high speed oil/water separation filter with high mechanical durability and self-cleaning property.

Original language	English
Pages (from-to)	33-40
Number of pages	8
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	464
DOIs	https://doi.org/10.1016/j.colsurfa.2014.10.009
Publication status	Published - Jan 5 2015

Keywords

Oil-water separation
Superhydrophilicity
TiO photocatalyst
Underwater superoleophobicity

ASJC Scopus subject areas

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

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10.1016/j.colsurfa.2014.10.009

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title = "Underwater superoleophobicity of a robust rough titanium dioxide surface formed on titanium substrate by acid treatment",

abstract = "A robust rough titanium dioxide (TiO2) surface was prepared by acid treatment of a Ti plate and mesh. By ultraviolet (UV) irradiation, the surface exhibited superhydrophilicity and superoleophilicity in air and underwater superoleophobicity. Due to the rough surface, the underwater superoleophobicity was observed, even after dark storage for 1 week under the ambient atmosphere. The robust rough TiO2 mesh with a pore size of approximately 150μm functioned as a high speed oil/water separation filter with high mechanical durability and self-cleaning property.",

keywords = "Oil-water separation, Superhydrophilicity, TiO photocatalyst, Underwater superoleophobicity",

author = "Shunsuke Nishimoto and Misaki Ota and Yoshikazu Kameshima and Michihiro Miyake",

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AU - Nishimoto, Shunsuke

AU - Ota, Misaki

AU - Kameshima, Yoshikazu

AU - Miyake, Michihiro

PY - 2015/1/5

Y1 - 2015/1/5

N2 - A robust rough titanium dioxide (TiO2) surface was prepared by acid treatment of a Ti plate and mesh. By ultraviolet (UV) irradiation, the surface exhibited superhydrophilicity and superoleophilicity in air and underwater superoleophobicity. Due to the rough surface, the underwater superoleophobicity was observed, even after dark storage for 1 week under the ambient atmosphere. The robust rough TiO2 mesh with a pore size of approximately 150μm functioned as a high speed oil/water separation filter with high mechanical durability and self-cleaning property.

AB - A robust rough titanium dioxide (TiO2) surface was prepared by acid treatment of a Ti plate and mesh. By ultraviolet (UV) irradiation, the surface exhibited superhydrophilicity and superoleophilicity in air and underwater superoleophobicity. Due to the rough surface, the underwater superoleophobicity was observed, even after dark storage for 1 week under the ambient atmosphere. The robust rough TiO2 mesh with a pore size of approximately 150μm functioned as a high speed oil/water separation filter with high mechanical durability and self-cleaning property.

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KW - Superhydrophilicity

KW - TiO photocatalyst

KW - Underwater superoleophobicity

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