Fabrication and characterization of highly hydrophobic rutile TiO2-based coatings for self-cleaning
Source abstract
Abstract
Abstract Highly hydrophobic rutile TiO2 nanocomposites modified by silica (SiO2) and silane coupling agent KH570 were synthesized. The chemical structure and morphology of TiO2 nanopowders before and after modification were investigated by Brunauer-Emmett-Teller, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscope techniques. The results revealed that a continuous and dense SiO2 coating layers was formed on TiO2 surfaces via Si–O–Ti bonds first, acting as a barrier that separates TiO2 particles from the medium. Then after modification by KH570, the composite powder had obvious hydrophobic property. The amount of silane coupling agent had an important influence on the achieved properties. TiO2@SiO2 nanocomposites modified with 0.3 ml KH570 exhibited the best excellent hydrophobicity with water contact angle of 141°, highlighting its potential application as a pigment in exterior wall coatings.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Modification and Superhydrophobicity · TiO2 Photocatalysis and Solar Cells · Polymer Nanocomposite Synthesis and Irradiation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
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