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Photocatalytic layers of tungsten trioxide fabricated by material printing
Saňák, Tomáš ; Krystyník,, Pavel (referee) ; Dzik, Petr (advisor)
This diploma thesis deals with milling of dispersed particles of WO3 using low-cost wet ball milling. Thin layers of WO3 were formed from them. These layers were characterized by profilometry, turbidity measurements, XRD and SEM. The photocatalytic activity was studied by the electrocatalytic properties of these layers. Profilometric measurements showed declining trends with milling time. XRD measurements confirmed the milling process and revealed a change in the crystalline phase during this process. Electrophotocatalytic measurements confirmed the photocatalytic activity of these layers and revealed its trends.
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The influence of titania morphology on the physico-chemical properties of photocatalytic coatings
Saňák, Tomáš ; Cihlář, Jaroslav (referee) ; Dzik, Petr (advisor)
This bachelor thesis examines two variously milled liquid dispersions containing titanium dioxide and coatings made by them. First dispersion was provided by partners from COC s.r.o. Pardubice and was prepared by high-energy milling. Second disperzion was milled in improvised ball-mill. Coatings prepared from these disperzions were applied on two various substrates (microscopic glass, FTO glass) and were characterized by three analytical methods (profilometry, haze measuring, electrochemical measuring). Profilometry and haze measuring reported about decreasing properties of layers according to milling time. Electrochemical measuring used to explore photocatalytic properties showed us that photocatalytic activity requiere optimal milling time.
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Photocatalytic layers of tungsten trioxide fabricated by material printing
Saňák, Tomáš ; Krystyník,, Pavel (referee) ; Dzik, Petr (advisor)
This diploma thesis deals with milling of dispersed particles of WO3 using low-cost wet ball milling. Thin layers of WO3 were formed from them. These layers were characterized by profilometry, turbidity measurements, XRD and SEM. The photocatalytic activity was studied by the electrocatalytic properties of these layers. Profilometric measurements showed declining trends with milling time. XRD measurements confirmed the milling process and revealed a change in the crystalline phase during this process. Electrophotocatalytic measurements confirmed the photocatalytic activity of these layers and revealed its trends.
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The influence of titania morphology on the physico-chemical properties of photocatalytic coatings
Saňák, Tomáš ; Cihlář, Jaroslav (referee) ; Dzik, Petr (advisor)
This bachelor thesis examines two variously milled liquid dispersions containing titanium dioxide and coatings made by them. First dispersion was provided by partners from COC s.r.o. Pardubice and was prepared by high-energy milling. Second disperzion was milled in improvised ball-mill. Coatings prepared from these disperzions were applied on two various substrates (microscopic glass, FTO glass) and were characterized by three analytical methods (profilometry, haze measuring, electrochemical measuring). Profilometry and haze measuring reported about decreasing properties of layers according to milling time. Electrochemical measuring used to explore photocatalytic properties showed us that photocatalytic activity requiere optimal milling time.
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