4.6 Article

Translucent and superhydrophobic glass for self-cleaning and acid rain-restraining

期刊

MATERIALS CHEMISTRY AND PHYSICS
卷 259, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2020.124049

关键词

Superhydrophobic glass; Translucent; Layered double hydroxide; Self-cleaning; Acid rain-restraining

资金

  1. Key Projects of Science and Technology of Henan Province [172102210085, 192102310262]
  2. Key Scientific Research Project of Henan Provincial Education Department [19A150024]

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Translucent and superhydrophobic glass surface with excellent water-repellency, self-cleaning ability, and good transparency was fabricated through a special process. The glass exhibited outstanding resistance to physical and chemical damage, as well as good environmental adaptability.
Translucent and superhydrophobic glass surface was fabricated by a NH4F-assisted in-situ growth and post modification process. Vertical and interconnected layered double hydroxide (LDH) nanosheets were built on the glass surface to enhance surface roughness, and then modified with stearic acid (SA) to reduce the surface energy. The water contact angle (WCA) and water sliding angle (WSA) of the prepared glass was 167 degrees and 2 degrees, respectively, exhibiting the excellent water-repellency and self-cleaning ability. The transparency of the prepared glass was measured by UV-Vis spectrophotometer, and the transmittance in visible region was ranged from 68% to 77.8%. The prepared glass possessed outstanding ability to withstand physical and chemical damage, such as sandpaper abrasion, tape-peeling and acid/base immersion. In addition, the superhydrophobic glass had good environmental adaptability, which can resist UV irradiation and acid raindrop impact. Consequently, the obtained translucent and superhydrophobic glass can be applied in various fields, such as self-cleaning traffic indicators, wind screens, self-cleaning windows and dust-free solar panels.

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