National Repository of Grey Literature 15 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Physico-chemical properties and phototransformation of ferric citrate complex in aquatic environment
Kolář, Michal ; Abida, O. ; Mailhot, G. ; Jirkovský, Jaromír ; Bolte, M.
Iron is the most abundant transition metal on the Earth. It is present in aquatic environments, soils as well as atmosphere. In the aquatic media, it is often present in a form of Fe(III) complexes, especially, with polycarboxylic acids. Citric acid was chosen as their suitable representative in this study.
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).
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.
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).
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.
Phototransformation of ferric citrate in aquatic environment
Kolář, Michal ; Abida, O. ; Mailhot, G. ; Jirkovský, Jaromír ; Bolte, M.
Iron is the most abundant transition metal on the Earth. It is present in aquatic environments, soils as well as atmosphere. In the aquatic media, it is often presnt in a form of Fe(III) complexes, especially with polycarbolic acids. Citric acid was chosen as their suitable representative in this study.
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.
Physico-chemical properties and phototransformation of ferric citrate complex in aquatic environment
Kolář, Michal ; Abida, O. ; Mailhot, G. ; Jirkovský, Jaromír ; Bolte, M.
Iron is the most abundant transition metal on the Earth. It is present in aquatic environments, soils as well as atmosphere. In the aquatic media, it is often present ina form of Fe(III) complexes, especially with polycarboxylic acids.
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.

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