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	Reaction order of photocatalytic degradation of various organic compounds Krýsa, J. ; Waldner, G. ; Jirkovský, Jaromír ; Grabner, G. The kinetic of photocatalytic degradation of four different model organic compounds, formic acid (FA), oxalic acid (OA), 4-chlorophenol (4-CP) and 3-(4-chlorophenyl)-1,1-dimethylurea (the herbicide monuron), on irradiated titanium dioxide was compared. Detailed record
	Determination of quantum yield of photocatalytic degradation in suspension and on thin film of titanium dioxide Měšťánková, Hana ; Zita, J. ; Navrátil, K. ; Krýsa, J. ; Jirkovský, Jaromír The development of novel photocatalytic materials based on nanocrystalline titanium dioxide is a rapidly growing field of science and technology. Parallel to the industrial production and practical use of these materials, simple but reliable procedures for the characterization of their photoactivity are necessary. The testing methods are usually based on relative comparison of the photoefficiency of a probe to a standard under certain conditions. Detailed record
	Preparation and properties of TiO2 nanoparticles and their composites Paušová, Š. ; Mailhot, G. ; Prevot, V. ; Krýsa, J. ; Jirkovský, Jaromír This paper first describes the behavior of TiO2 nanoparticles in aqueous solution. The second part focuses on the preparation of new nanocomposites based on TiO2 nanoparticles deposited on the inorganic substrate made of multilayer hydroxides (LDH). Detailed record
	Degradation of organic pollutants in aqueous photoinduced complex Fe (III) CIT: influence of TiO2 Kolář, Michal ; Mailhot, G. ; Jirkovský, Jaromír ; Bolte, M. ; Krýsa, J. This work has been to study the complex of trivalent iron with citrate ions and its effect on the photodegradation of model pollutant, monuron. Detailed record
	Effect of aging colloidal TiO2 particles in the water on their property Paušová, Š. ; Jirkovský, Jaromír ; Krýsa, J. ; Mailhot, G. ; Prevot, V. This paper describes the behavior of aqueous solutions of Q-TiO2. The main objective was to investigate the aging of colloidal solutions at different temperatures (4,20,40 C) and different pH (2,5 and 11). Detailed record
	Competitive adsorption and photodegradation of salicylate and oxalate on goethite Krýsa, J. ; Jirkovský, Jaromír ; Bajt, O. ; Mailhot, G. It is known that Fe(III) aquacomplexes were proved to be efficient photocatalyst to induce the complete mineralisation of variety of pollutants. There are several crystalline polymorphs of iron oxohydroxide present in soil as well as marine sediments. Goethite was found as one of the most common components of sediments in the Gulf of Triest. Detailed record
	Degradation of organic pollutants in aquatic environment photoinduced by Fe(III)Cit complex: Impact of TiO2 Kolář, Michal ; Jirkovský, Jaromír ; Mailhot, G. ; Bolte, M. ; Krýsa, J. Iron is the most abundant transition metal on the Earth. It is present in the atmosphere, soils as well as aquatic environments. In the aquatic media, it is often presnt in a form of Fe(III) complexes, especially with polycarbolic acids. The complexes of Fe(III) are highly photosensitive in general. Detailed record
	Photodegradation of monuron in the presence of goethite and carboxylic acids Bajt, O. ; Krýsa, J. ; Jirkovský, Jaromír ; Zita, J. ; Paušová, Š. Iron is one of the most abundant elements in the environment. It is also an essential micronutrient for most known aquatic organisms, Its role in primary production in natural waters is very important. However, the low solubility of iron oxides at pHs, significant the low availability of iron to aquatic plants and microorganisms. Goethite, an iron oxohydroxide, is one of the most abundant iron oxide in the natural marine environment. Detailed record
	Preparation and properties of TiO2 nanoparticles and their composites Paušová, Š. ; Mailhot, G. ; Prevot, V. ; Krýsa, J. ; Jirkovský, Jaromír This work is considered of preparation and properties of TiO2 nanoparticles and their composites. Detailed record
	Aging of the TiO2 colloidal particles in water: effect on their properties Paušová, Š. ; Krýsa, J. ; Mailhot, G. ; Jirkovský, Jaromír ; Prevot, V. The quantum sized titanium dioxide particles (Q-TiO2) could be prepared by hydrolysis of TiCl4, the final pH is 2.5 and particle size around 7 nm. From the environmental point of view very promissing seems to be the application of new composite materials combining layeres double hydroxides (LDH) and Q-TiO2 nanoparticles. Due to the synthesis of LDH it is important to keep Q-TiO2 particles in alkaline pH without big change of their size. Detailed record

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