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Photocatalytic activity of hybrid layers of titanium dioxide for water disinfection
Morávková, Eva ; Krystyník, Pavel (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with the preparation of thin layers based on nanoparticles of titanium dioxide and organosilica binder. The effect of the ratio of the two components on the properties of the formed immobilized layers is studied. Two different ratios between TiO2 and organosilica binder and two different types of commercially available oxides were used. The work focuses mainly on the formation of thin immobilized TiO2 layers and their properties. Their photocatalytic activity was determined by degradation of model pollutant in solution, as well as their mechanical hardness and layer adhesion were determined. All prepared layers were treated with muffle furnace annealing and UV-C curing. Samples that had undergone a complete treatment were subjected to individual tests. The model dye was Acid Orange 7. Photocatalytic activity was characterized by a formal 1st order rate constant, which was detected by UV/VIS spectrophotometry. Mechanical hardness and adhesion were determined using ISO standards.
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Kinetics of photocatalytic and electrophotocatalytic degradation of swimming pool water model pollutants
Morávková, Eva ; Cihlář, Jaroslav (referee) ; Veselý, Michal (advisor)
This diploma thesis deals with the coating and printing of thin layers based on nanoparticles of titanium dioxide and organosilica binder on various substrates. The influence of the ratio of the both components on the activity of the prepared immobilized layers was studied. Five compositions with different ratios of TiO2 and binder were prepared. The work focuses mainly on the study of photocatalytic and photoelectrocatalytic properties of prepared layers. It was also important to characterize the mechanical properties of the layer such as hardness or adhesion. Both photocatalytic and photoelectrocatalytic activity were determined by monitoring the degradation of the model pollutants in aqueous solutions. The dye Acid Orange 7 and UV filter 2-hydroxy-4-methoxybenzophenone were used in conjunction with UV/VIS spectroscopy or high performance liquid chromatography techniques. Both photocatalytic and photoelectrocatalytic activity were expressed using kinetic characteristics.
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Kinetics of photocatalytic and electrophotocatalytic degradation of swimming pool water model pollutants
Morávková, Eva ; Cihlář, Jaroslav (referee) ; Veselý, Michal (advisor)
This diploma thesis deals with the coating and printing of thin layers based on nanoparticles of titanium dioxide and organosilica binder on various substrates. The influence of the ratio of the both components on the activity of the prepared immobilized layers was studied. Five compositions with different ratios of TiO2 and binder were prepared. The work focuses mainly on the study of photocatalytic and photoelectrocatalytic properties of prepared layers. It was also important to characterize the mechanical properties of the layer such as hardness or adhesion. Both photocatalytic and photoelectrocatalytic activity were determined by monitoring the degradation of the model pollutants in aqueous solutions. The dye Acid Orange 7 and UV filter 2-hydroxy-4-methoxybenzophenone were used in conjunction with UV/VIS spectroscopy or high performance liquid chromatography techniques. Both photocatalytic and photoelectrocatalytic activity were expressed using kinetic characteristics.
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Photocatalytic activity of hybrid layers of titanium dioxide for water disinfection
Morávková, Eva ; Krystyník, Pavel (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with the preparation of thin layers based on nanoparticles of titanium dioxide and organosilica binder. The effect of the ratio of the two components on the properties of the formed immobilized layers is studied. Two different ratios between TiO2 and organosilica binder and two different types of commercially available oxides were used. The work focuses mainly on the formation of thin immobilized TiO2 layers and their properties. Their photocatalytic activity was determined by degradation of model pollutant in solution, as well as their mechanical hardness and layer adhesion were determined. All prepared layers were treated with muffle furnace annealing and UV-C curing. Samples that had undergone a complete treatment were subjected to individual tests. The model dye was Acid Orange 7. Photocatalytic activity was characterized by a formal 1st order rate constant, which was detected by UV/VIS spectrophotometry. Mechanical hardness and adhesion were determined using ISO standards.
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Disappointment expectations as a Cultural Practice: Romantic Love Dreams and Disenchantment in Life of Young Czech Women
Kompanová, Zuzana ; Kotík, Michal (advisor) ; Morávková, Eva (referee)
This thesis is focused on the form of contemporary love relationships and the posibility of love disappointment. The aim of the thesis is to explore the connection between dreaming about romantic love and the love young women get in a real love relationship. Text is based primarily on theory of Anthony Giddens and Eva Illouz, who talk about romantic love in the connection with a process of modernization and the form of relationship in modern societies. In contemporary societies romantic love comes into conflict with sexual freedom and intimacy becomes a consumer product thanks to the mass media and the leisure industry. Contemporary relationships are maintained only if they satisfy both partners. The conclusion of the form of relationships nowadays and the role of romantic love in current relationships was achieved via qualitative interviews. Young women long for long-term love relationships based on mutual intimacy with their partner and have romantic expectations. However, real relationships nowadays are being established sensing that can be ended anytime, if one of the partners decides, thus relationships are fragile end newly committed relationships are being only temporary.
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Liminality in modern society: Erasmus as a Rite de Passage
Picková, Iva ; Cirklová, Jitka (advisor) ; Morávková, Eva (referee)
This bachelor's thesis focuses on the topic of liminality in modern rites of passage which are represented here by the Erasmus+ programme. It looks at how some of its aspects differ from the liminal phase of ritual as described by Victor Turner. The work is based on research that took place during five-months studies at KTU (Kaunas University of Technology) in Lithuania within the frame of Erasmus study programme. The data was obtained through participant observation and also nine semi-structured interviews with other program participants. The research discovered that a change in liminal characteristics in modern rites of passage occurs through the globalization process. The thesis deals in detail with individual phenomena connected with the process of globalization. One of them is, for example, the development of modern technologies, which results in loosening of isolation of liminal persons and it also allows them to maintain contact with their home and the original structure. Another point is the reduction of space-time distances and the simplification of mobility, which also increases the sense of detachment from the structure of the society in which these liminal persons are located. Globalization also has an impact on the intensity of communities, because through the process of...
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Political Culture in Narratives
Kapal, Tomáš ; Grznár, Miroslav (advisor) ; Morávková, Eva (referee)
Political culture in narratives Abstract Thesis "Political culture in narratives" aims on the phenomenom of Political culture as was defined by Almond and Verba. Base of this thesis are researches on Political culture by Almond and Verba and other authors who done researches on this topic including political culture researches done within context in the Czech Republic. The research in this thesis is based on ten semi-structured qualitative interviews with informants, who grew up during the communist era in former Czechoslovakia. Interviews aimed on informants' experiences during the communism era, Velvet revolution, economic transformation and present day. Informants evaluates their understanding of political situation during mentioned eras, their political activity and their life situation. Thases aims on behalf of this data to discover how growing up during communist era, Velvet revolution and economical transformation influenced informants' political attitudes and how it influenced their political culture. It was discovered that during the communsit era subject political culture dominated. This changed right after Velvet revolution, when participant attitudes dominated. After the series of dissapointments in political situation during the economic transformation, informants showed anomic attitudes...
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