Temat: mixed oxide - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of Dy Doping on the Properties of BiFeO3
Autorzy:: Dzik, J.
Feliksik, K.
Pikula, T.
Panek, R.
Rerak, M.
Powiązania:: https://bibliotekanauki.pl/articles/355238.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Doped BiFeO3
mixed-oxide method
ceramics
Dy3+
Opis:: The aim of this research was to fabricate and study the properties of Bi_1-x Dy_xFeO₃ (for x = 0, 0.05, 0.07, 0.1) ceramics materials. Simple oxide powders Bi₂O₃, Dy₂O₃ and Fe₂O₃ were used to fabricate Bi_1-xDy_xFeO₃ ceramics by mixed oxide method followed by free sintering. The study presents changes in microstructure and crystal structure as well as in dielectric properties and magnetic properties caused by modification of BiFeO₃ with dysprosium dopant.
Źródło:: Archives of Metallurgy and Materials; 2018, 63, 3; 1351-1355
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Alumina-silica-titania adsorbent for hazardous azo and phtalocyanine dyes removal from textile baths and wastewaters – the impact of ionic surfactants
Autorzy:: Wiśniewska, Małgorzata
Wrzesińska, Katarzyna
Wawrzkiewicz, Monika
Chibowski, Stanisław
Urban, Teresa
Goncharuk, Olena
Gun’ko, Vladimir M.
Powiązania:: https://bibliotekanauki.pl/articles/1450276.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: dyes sorption removal
mixed oxide
ionic surfactants
dye-surfactant complexes
electrokinetic parameters
Opis:: Two aspects of interfacial phenomena were discussed in the manuscript. The first one concerns the adsorptive removal of two azo dyes such as C.I. Acid Yellow 219 (AY219) and C.I. Direct Yellow 142 (DY142) as well as the phtalocyanine C.I. Reactive Blue 21 (RB21) on the alumina silicatitania oxide (4% wt. $Al_2O_3$ – 8% wt. $SiO_2$ – 88% wt. $TiO_2$; AST88) in the ionic surfactants presence. The second one deals with the determination of interaction mechanism in the dyes-AST88, dyes-surfactant-AST88 systems using the data obtained from the surface charge density and zeta potential studies. The sodium dodecyl sulphate (SDS) with anionic character and hexadecyltrimethylammonium bromide (CTAB) with cationic ones were used. The adsorption capacities of 205.2 mg/g for AY219, 36.5 mg/g for RB21 and 18 mg/g for DY142. The potentiometric titration and Doppler laser electrophoresis methods enable determination of sign and magnitude of charge located in both the surface and the slipping plane layers around the solid particles. The structure of electrical double layer was determined in the AST88 systems without as well as with dyes and with mixed dye + surfactant adsorbates.
Źródło:: Physicochemical Problems of Mineral Processing; 2020, 56, 6; 178-193
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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