Fabrication of a superamphiphobic coating by a simple and flexible method--颗粒学报PARTICUOLOGY

Jiang, P., Li, Y., Zhang, C., Zhou, X., & Jiang, Y. (2018). Fabrication of a superamphiphobic coating by a simple and flexible method. Particuology, 39, 33-39. https://doi.org/10.1016/j.partic.2017.09.004

Fabrication of a superamphiphobic coating by a simple and flexible method

Pengfei Jiang ^a, Yanli Li ^b, Chuan Zhang ^a, Xuan Zhou ^a, Yong Jiang ^a *

a School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
b Chengxian College, Southeast University, Nanjing 210088, China

10.1016/j.partic.2017.09.004

Volume 39, August 2018, Pages 33-39

Received 2 June 2017, Revised 13 September 2017, Accepted 14 September 2017, Available online 1 January 2018, Version of Record 17 May 2018.

E-mail: yj@seu.edu.cn

Highlights

• Si–F@TiO₂ nanoparticles were prepared from anatase TiO₂, TEOS and HDFTES by a facile method.

• The particles can be coated on various substrates by spray or dip method with the aid of a primer.

• The coating exhibited fairly good superamphiphobicity.

Abstract

A facile and flexible method to prepare raspberry-like nanoparticles that can be used as a superamphiphobic coating is reported. Anatase TiO₂ nanoparticles were chosen as the core because of their irregular morphology and photocatalytic performance. Anatase TiO₂ nanoparticles were surrounded tightly by tiny functional fluoride–silica nanoparticles via the hydrolysis-condensation reaction of tetraethoxysilane and 1H, 1H, 2H, 2H-perfluorodecyl triethoxysilane. The obtained Si–F@TiO₂ nanoparticles can be sprayed or dipped directly onto various substrates. The coated film exhibited quite good liquid resistance, even when subjected to water jetting and sand abrasion. The photocatalytic effect of the coated anatase TiO₂ with respect to formaldehyde was also studied and discussed. This method will provide more opportunities and fast access to practical applications in surface, environmental, and energy engineering.

Graphical abstract

Keywords

Superamphiphobic coating; TiO₂ nanoparticle; Fluoride-silica nanoparticle; Photocatalytic effect; Formaldehyde

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