|
|
Study of titanium dioxide photocatalytic activity by fluorescence spectroscopy
Blašková, Martina ; Vala, Martin (referee) ; Dzik, Petr (advisor)
This thesis deals with principles and methodology of evaluation of photocatalytic activity of titanium dioxide by fluorescence detection of hydroxyterephthalic acid and assessment of use this method in batch reactor. To the fluorescence study of activity we used hydroxyterephthalic acid as a primary product of oxidation terephthalic acid as a solution or in the form of immobilized layers. In the liquid phase we monitored fluorescence of hydroxyterephthalic acid by using a conventional fluorimeter and fiber spectrometer. In the solid state we monitored fluorescence of hydroxyterephthalic acid by spectrofluorometer with holder of solid samples.
|
|
|
Fluorescence probes for immobilized photocatalyst activity monitoring
Blašková, Martina ; Dvoranová, Dana (referee) ; Dzik, Petr (advisor)
This diploma thesis deals with the use of fluorescent probes for evaluation of photocatalytic activity of immobilized photocatalyst. To the evaluation of photocatalytic activity of TiO2 were used three different fluorescent probes – terephthalic acid, coumarin and benzoic acid, wherein was monitored the increasing intensity of fluorescence of their oxidation products – hydroxyterephthalic acid, 7-hydroxycoumarin and salicylic acid for the photochemical degradation of various fluorescent probes. To the evaluation of photocatalytic activity was used solid phase (photocatalyst) – liquid phase (probe) system and was used three sources of radiation. Fluorescence of oxidation products was monitored by the fiber spectrometer and a conventional cuvette fluorometer.
|
|
|
Economic benefits of geocaching for specific community
Blašková, Martina ; Hrdlička, Pavel (advisor) ; Markéta, Markéta (referee)
The thesis Economic benefits of geocaching for specific community in the theoretical part describes Třebenice. This part also describes the characteristics of the community and its position, publications dealing with macroeconomics, there is explained the methodology determine the economic benefit and, ultimately, a description of geocaching. Based on the creation of new case and a questionnaire which was published for 8 months, it is detected economic benefits for the Třebenice from the people who came to the village primary for geocaching. On a selected sample of 10 people with a second questionnaire, it is also detected the economic benefits from people in the village, who did not come primarily for geocaching. On the bases of these results are being evaluated and found economic benefits for the Třebenice through the special forms of tourism with assistance geocaching.
|
|
|
Fluorescence probes for immobilized photocatalyst activity monitoring
Blašková, Martina ; Dvoranová, Dana (referee) ; Dzik, Petr (advisor)
This diploma thesis deals with the use of fluorescent probes for evaluation of photocatalytic activity of immobilized photocatalyst. To the evaluation of photocatalytic activity of TiO2 were used three different fluorescent probes – terephthalic acid, coumarin and benzoic acid, wherein was monitored the increasing intensity of fluorescence of their oxidation products – hydroxyterephthalic acid, 7-hydroxycoumarin and salicylic acid for the photochemical degradation of various fluorescent probes. To the evaluation of photocatalytic activity was used solid phase (photocatalyst) – liquid phase (probe) system and was used three sources of radiation. Fluorescence of oxidation products was monitored by the fiber spectrometer and a conventional cuvette fluorometer.
|
|
|
Study of titanium dioxide photocatalytic activity by fluorescence spectroscopy
Blašková, Martina ; Vala, Martin (referee) ; Dzik, Petr (advisor)
This thesis deals with principles and methodology of evaluation of photocatalytic activity of titanium dioxide by fluorescence detection of hydroxyterephthalic acid and assessment of use this method in batch reactor. To the fluorescence study of activity we used hydroxyterephthalic acid as a primary product of oxidation terephthalic acid as a solution or in the form of immobilized layers. In the liquid phase we monitored fluorescence of hydroxyterephthalic acid by using a conventional fluorimeter and fiber spectrometer. In the solid state we monitored fluorescence of hydroxyterephthalic acid by spectrofluorometer with holder of solid samples.
|
guest ::
RSS feed.