TiO2-based superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast

Shunsuke Nishimoto; Michiaki Becchaku; Yoshikazu Kameshima; Yuki Shirosaki; Satoshi Hayakawa; Akiyoshi Osaka; Michihiro Miyake

doi:10.1016/j.tsf.2014.02.060

TiO₂-based superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast

Shunsuke Nishimoto, Michiaki Becchaku, Yoshikazu Kameshima, Yuki Shirosaki, Satoshi Hayakawa, Akiyoshi Osaka, Michihiro Miyake

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

40 Citations (Scopus)

Abstract

Rough nanostructured anatase TiO₂ surfaces containing many pores were prepared by the hydrothermal-based method. Surface modification with self-assembled monolayers (SAMs) of octadecylphosphonic acid (ODP) resulted in the superhydrophobic surface with an extremely high static water contact angle (CA) of 173.6°± 1.7°. This superhydrophobic surface could be converted into a superhydrophilic surface with a water CA of nearly 0°by irradiating it with ultraviolet (UV) light, which induced photocatalytic decomposition of the ODP SAM. A superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast (a water CA difference of over 170°) could be fabricated on the ODP-modified TiO₂ surface by area-selective UV irradiation through a photomask. This is the report of the TiO₂-based superhydrophobic-superhydrophilic pattern with a water CA difference of over 170°, and it may be possible to use such patterns for various applications.

Original language	English
Pages (from-to)	221-226
Number of pages	6
Journal	Thin Solid Films
Volume	558
DOIs	https://doi.org/10.1016/j.tsf.2014.02.060
Publication status	Published - May 2 2014

Keywords

Photocatalyst
Self-assembled monolaye
Superhydrophobic-superhydrophilic pattern
Titanium dioxide
Wettability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2014.02.060

Cite this

@article{9200b2c8c4b44b93be2687adde12714e,

title = "TiO2-based superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast",

abstract = "Rough nanostructured anatase TiO2 surfaces containing many pores were prepared by the hydrothermal-based method. Surface modification with self-assembled monolayers (SAMs) of octadecylphosphonic acid (ODP) resulted in the superhydrophobic surface with an extremely high static water contact angle (CA) of 173.6°± 1.7°. This superhydrophobic surface could be converted into a superhydrophilic surface with a water CA of nearly 0°by irradiating it with ultraviolet (UV) light, which induced photocatalytic decomposition of the ODP SAM. A superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast (a water CA difference of over 170°) could be fabricated on the ODP-modified TiO2 surface by area-selective UV irradiation through a photomask. This is the report of the TiO2-based superhydrophobic-superhydrophilic pattern with a water CA difference of over 170°, and it may be possible to use such patterns for various applications.",

keywords = "Photocatalyst, Self-assembled monolaye, Superhydrophobic-superhydrophilic pattern, Titanium dioxide, Wettability",

author = "Shunsuke Nishimoto and Michiaki Becchaku and Yoshikazu Kameshima and Yuki Shirosaki and Satoshi Hayakawa and Akiyoshi Osaka and Michihiro Miyake",

note = "Funding Information: This work was supported by a Grant-in-Aid for Young Scientists (B) (No. 20750170 ) from the Japan Society for the Promotion of Science .",

year = "2014",

month = may,

day = "2",

doi = "10.1016/j.tsf.2014.02.060",

language = "English",

volume = "558",

pages = "221--226",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

}

TY - JOUR

T1 - TiO2-based superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast

AU - Nishimoto, Shunsuke

AU - Becchaku, Michiaki

AU - Kameshima, Yoshikazu

AU - Shirosaki, Yuki

AU - Hayakawa, Satoshi

AU - Osaka, Akiyoshi

AU - Miyake, Michihiro

N1 - Funding Information: This work was supported by a Grant-in-Aid for Young Scientists (B) (No. 20750170 ) from the Japan Society for the Promotion of Science .

PY - 2014/5/2

Y1 - 2014/5/2

N2 - Rough nanostructured anatase TiO2 surfaces containing many pores were prepared by the hydrothermal-based method. Surface modification with self-assembled monolayers (SAMs) of octadecylphosphonic acid (ODP) resulted in the superhydrophobic surface with an extremely high static water contact angle (CA) of 173.6°± 1.7°. This superhydrophobic surface could be converted into a superhydrophilic surface with a water CA of nearly 0°by irradiating it with ultraviolet (UV) light, which induced photocatalytic decomposition of the ODP SAM. A superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast (a water CA difference of over 170°) could be fabricated on the ODP-modified TiO2 surface by area-selective UV irradiation through a photomask. This is the report of the TiO2-based superhydrophobic-superhydrophilic pattern with a water CA difference of over 170°, and it may be possible to use such patterns for various applications.

AB - Rough nanostructured anatase TiO2 surfaces containing many pores were prepared by the hydrothermal-based method. Surface modification with self-assembled monolayers (SAMs) of octadecylphosphonic acid (ODP) resulted in the superhydrophobic surface with an extremely high static water contact angle (CA) of 173.6°± 1.7°. This superhydrophobic surface could be converted into a superhydrophilic surface with a water CA of nearly 0°by irradiating it with ultraviolet (UV) light, which induced photocatalytic decomposition of the ODP SAM. A superhydrophobic-superhydrophilic pattern with an extremely high wettability contrast (a water CA difference of over 170°) could be fabricated on the ODP-modified TiO2 surface by area-selective UV irradiation through a photomask. This is the report of the TiO2-based superhydrophobic-superhydrophilic pattern with a water CA difference of over 170°, and it may be possible to use such patterns for various applications.

KW - Photocatalyst

KW - Self-assembled monolaye

KW - Superhydrophobic-superhydrophilic pattern

KW - Titanium dioxide

KW - Wettability

UR - http://www.scopus.com/inward/record.url?scp=84898794462&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898794462&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2014.02.060

DO - 10.1016/j.tsf.2014.02.060

M3 - Article

AN - SCOPUS:84898794462

SN - 0040-6090

VL - 558

SP - 221

EP - 226

JO - Thin Solid Films

JF - Thin Solid Films

ER -