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Study of electrophotocatalytic water disinfenction
Cisáriková, Barbora ; Zita, Jiří (referee) ; Veselá, Mária (advisor)
This bachelor thesis was focused on the photocatalytic disinfection of water with titanium dioxide applied to the working electrode. The experiment was conducted under normal conditions, with the application of UV-radiation with intensity of 40 W/m2 and with UV radiation and of 1 V electrical voltage at the same time. Each part of the experiment was run for 60 and 120 minutes. The microbicidal effect was monitored on Escherichia coli bacteria.
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Electrophotocatalytic wather disinfection
Štefancová, Eva ; Drbohlavová, Jana (referee) ; Veselá, Mária (advisor)
This work focuses on the photoelectrocatalytic water disinfection by applying electrical voltage onto an electrode system. Working electrode consist of electrical conductor covered by thin film TiO2, because of its very important photoactivity. Disinfection effect was monitored on Gram-negative bacteria E. coli under different conditions. Inactivation of bacterial cells in contamined aqueous solution, first experiment was observed only with presence of oxygen, later reactor was irradiated with UV-A compact blacklight with intensity of 4 mW• m-2 or electrical voltage of 1V was applied to electrode. By adding both effects at the same time I was verifying photoelectrocatalysic water disinfection on chosen microorganism.
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Electroassisted photocatalysis
Filipská, Markéta ; Pekárková, Jana (referee) ; Dzik, Petr (advisor)
This thesis is focused on fotoelectrochemical cells, where as photocathode is used titanium dioxide coated on conductive FTO glass and as counter electrode is used gold electrode. Thesis is also focused on relationship between intensity of irradiation and Faradaic efficiency and also influence of the overvoltage to the rate of degradation od the model pollutant, in this case Acid Orange 7. Electrical properties were measured by recording values of photocurrent. The aim of this thesis was to study influence material composition of photoanode and connection with intensity of irradiation, rate of degradation proces of model pollutant and current.
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Electroassisted photocatalysis
Filipská, Markéta ; Pekárková, Jana (referee) ; Dzik, Petr (advisor)
This thesis is focused on fotoelectrochemical cells, where as photocathode is used titanium dioxide coated on conductive FTO glass and as counter electrode is used gold electrode. Thesis is also focused on relationship between intensity of irradiation and Faradaic efficiency and also influence of the overvoltage to the rate of degradation od the model pollutant, in this case Acid Orange 7. Electrical properties were measured by recording values of photocurrent. The aim of this thesis was to study influence material composition of photoanode and connection with intensity of irradiation, rate of degradation proces of model pollutant and current.
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Study of electrophotocatalytic water disinfenction
Cisáriková, Barbora ; Zita, Jiří (referee) ; Veselá, Mária (advisor)
This bachelor thesis was focused on the photocatalytic disinfection of water with titanium dioxide applied to the working electrode. The experiment was conducted under normal conditions, with the application of UV-radiation with intensity of 40 W/m2 and with UV radiation and of 1 V electrical voltage at the same time. Each part of the experiment was run for 60 and 120 minutes. The microbicidal effect was monitored on Escherichia coli bacteria.
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|
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Electrophotocatalytic wather disinfection
Štefancová, Eva ; Drbohlavová, Jana (referee) ; Veselá, Mária (advisor)
This work focuses on the photoelectrocatalytic water disinfection by applying electrical voltage onto an electrode system. Working electrode consist of electrical conductor covered by thin film TiO2, because of its very important photoactivity. Disinfection effect was monitored on Gram-negative bacteria E. coli under different conditions. Inactivation of bacterial cells in contamined aqueous solution, first experiment was observed only with presence of oxygen, later reactor was irradiated with UV-A compact blacklight with intensity of 4 mW• m-2 or electrical voltage of 1V was applied to electrode. By adding both effects at the same time I was verifying photoelectrocatalysic water disinfection on chosen microorganism.
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