Národní úložiště šedé literatury Nalezeno 45 záznamů.  začátekpředchozí26 - 35další  přejít na záznam: Hledání trvalo 0.01 vteřin. 
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.
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.
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.
Příprava a clastnosti TiO2 nanočástic a jejich kompositů
Paušová, Š. ; Mailhot, G. ; Prevot, V. ; Krýsa, J. ; Jirkovský, Jaromír
Práce pojednává o metodách přípravy TiO2 nanočástic a jejich vlastností a kompositů.
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.
The Effect of the Various Electrolyte Types on the Generation of Photocurrent
Morozová, Magdalena ; Klusoň, Petr ; Krýsa, Josef ; Šolcová, Olga
This work was focused on the utilization of photocatalysis in electrochemical experiments. The generation of photocurrent was measured during the photoelectrocatalytical degradation of substrates in electrolytes on the surface of the thin TiO2/ITO working electrode. The relationship between values of photocurrent and structures of amino acids, mono- and dicarboxyl acids was investigated.
Antibakteriální účinek Ag vrstev nanesených na vnitřní povrch PVC hadic
Krýsa, J. ; Šubrt, Jan ; Balcarová, J.
Jedním z problémů je tvorba biofilmů na neozářených vnitřních površích PVC hadic, kterými cirkuluje voda mezi bazénem a filtrační a fotokatalytickou čisticí jednotkou.

Národní úložiště šedé literatury : Nalezeno 45 záznamů.   začátekpředchozí26 - 35další  přejít na záznam:
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4 Krýsa, Jan
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