کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
691620 1460448 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Design and fabrication of antireflective nanoparticulate thin films with superhydrophilic self-cleaning properties on glass substrate
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Design and fabrication of antireflective nanoparticulate thin films with superhydrophilic self-cleaning properties on glass substrate
چکیده انگلیسی

Design and fabrication of transparent and superhydrophilic self-cleaning thin films on glass substrate by 7 nm TiO2/22 nm SiO2 all-nanoparticle coatings via aqueous electrostatic layer-by-layer assembly processing were demonstrated in this work. Stable and conformal structure of multibilayer (TiO2/SiO2)x with x up to 120 was shown to exhibit antireflective, superhydrophilic, and self-cleaning multifunctional properties. This was achieved by using appropriate periodic calcinations rather than only once calcination of the assembled nanoparticulate thin films. Average refractive index of 1.30 ± 0.03 at 633 nm and average bilayer thickness of 20.18 nm were determined for the as-fabricated nanoparticulate thin films. Furthermore, average transmittance values higher than 93.5% were exhibited by all the nanoparticulate thin films and the experimental results were only at the very most of 2% lower than those predicted by the theory. The self-cleaning properties of the nanoparticulate thin films were revealed by the decomposition of two model contaminants under UV illumination. The experimental results showed that the photocatalytic decomposition rates are increased with the increase of bilayer number of the nanoparticulate thin film.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 42, Issue 5, September 2011, Pages 852–859
نویسندگان
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