National Repository of Grey Literature 29 records found  previous11 - 20next  jump to record: Search took 0.01 seconds. 
The influence of material composition and spatial arrangement on the properties of photoelectrochemical cells
Pachovská, Martina ; Krystyník, Pavel (referee) ; Dzik, Petr (advisor)
This diploma thesis deals with photoelectrochemical cells containing photoactive titanium dioxide anode and their use for photocatalytic degradation of organic compound from water solutions. The electrical properties of the produced photoelectrochemical cells were determined by the use of voltamperometric characteristics, the oxidation ability of the cells was monitored by measuring the fluorescence of the oxidative intermediates. To study these reactions, benzoic acid was used as the fluorescence probe for OH˙ radicals. The aim of the study was to study the influence of material composition and spatial arrangement of the cathode and the relationship between irradiation, current and rate of electrode processes.
Photocatalytic activity of printed hybrid layers of titanium dioxide
Sýkorová, Kateřina ; Krystyník, Pavel (referee) ; Veselý, Michal (advisor)
The main aim of this thesis was to optimalise composition of the titanium dioxide with a silica binder deposited on a PET foil. Emphasis was put on achieving maximum possible adhesion and hardness of the layer and the effect on photocatalytic activity. For the evaluation of photocatalytic activity comparative experiments with prepared layers were performed. Benzoic acid, dimethyl sulfoxide and azo dye Acid Orange 7 were used as model pollutants. Photocatalytic activity was investigated using UV-VIS spectrophotometry, formal rate constants and degree of conversion were also determined. The study results can be used for removing water pollutants from the water solution.
Electrocoagulation Scaling-Up for Removal of Toxic Metals, Namely Cr6+ and Ni2+.
Krystyník, Pavel ; Klusoň, Petr ; Mašín, P. ; Kroužek, J.
Presented cotribution deals with application of electrocoagulation process for removal of Cr6+ and other toxic metals, namely Ni2+, Zn2+, Cu2+ and Mn2+ from contaminated groundwater on the site of former galvanization plant. The industrial effluent has pH ranging from 4.2 to 4.8; RAS (dissolved inorganic salts) is 2540 mg/L and conductivity 488 mS/m.
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Plný tet: SKMBT_22317091509450 - Download fulltextPDF
Electro-Coagulation – Process and Data Analysis (The Significance of Standardisation and Clarity).
Krystyník, Pavel ; Tito, Duarte Novaes ; Klusoň, Petr
The purpose of this contribution is to show how, unlike frequently reported in the literature, a fundamental process parameter – current intensity – is the process determining step with regards to extent of contaminant removal (rather than current density).
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Electro-Coagulation: A Step towards Chemical-Free Water Treatment.
Tito, Duarte Novaes ; Krystyník, Pavel ; Klusoň, Petr
This work will focus on presenting the principles of electro-coagulation, clarifying what are the key process parameters and demonstrating the applicability of the technology by showcasing large-scale case studies and process performance data.
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Plný tet: SKMBT_C22016090211371 - Download fulltextPDF
Combination of Various Nanomaterials for Effective Water Purification.
Morozová, Magdalena ; Krystyník, Pavel ; Bumba, Jakub ; Šolcová, Olga
This work is focused on preparation and characterization of various nanomaterials applied in sorption, oxidation, electrocoagulation and photocatalysis techniques. The main aim is the study of their effective combination and activity testing in purification processes.
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Plný tet: SKMBT_C22016090211360 - Download fulltextPDF

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