Temat: TiO2-nitrogen - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Preparation of the TiO2 photocatalyst using pressurized ammonia
Autorzy:: Wawrzyniak, B.
Janus, M.
Grzmil, B.
Morawski, A.W.
Powiązania:: https://bibliotekanauki.pl/articles/778501.pdf
Data publikacji:: 2007
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: fotokataliza
TiO2
TiO2-azot
odbarwianie barwników
photocatalysis
TiO2-nitrogen
dye decolorization
preparation under pressure
Opis:: The industrial hydrated amorphous titanium dioxide (TiO2 ź xH2O) was modified by treatment inside a chemical reactor under elevated pressure at low temperatures for 4 hours in an ammonia atmosphere. On the basis of the FTIR/DRS analysis the presence of nitrogen was confirmed. The XRD patterns of all of the catalysts exhibit mainly the diffraction lines of anatase phases. The photocatalytic activity of the modified photocatalysts was determined and compared to TiO2-P25 (Degussa, Germany). The high rate of phenol and dye degradation was obtained for the catalysts modified at 180°/5atm. TiO2-P25 showed similar activity in phenol decomposition like TiO2-15bar, whereas it was more active in dye decomposition.
Źródło:: Polish Journal of Chemical Technology; 2007, 9, 1; 51-56
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: TiO2 modified by ammonia as a long lifetime photocatalyst for dyes decomposition
Autorzy:: Choina, J.
Dolat, D.
Kusiak, E.
Janus, M.
Morawski, A.W.
Powiązania:: https://bibliotekanauki.pl/articles/778832.pdf
Data publikacji:: 2009
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: fotokataliza
TiO2 modyfikowany azotem
żywotność
photocatalysis
nitrogen-modified TiO2
lifetime
Opis:: Ammonia-modified TiO2 (TiO2/N), prepared in a pressure reactor was used as the well- active and longlife photocatalyst for the azo dye (Reactive Red 198) decomposition. The effect of aeration and the different value of the pH of the reaction medium on the photocatalytic degradation of Reactive Red 198 in water has been investigated. It has been reported that the degradation is greatly influenced by the reaction pH and the faster decomposition of azo dye took place at pH 3.5. When the solution was acidic, a larger amount of azo dye on the positively charged surface of TiO2 photocatalysts was adsorbed. From the obtained results it can be seen that the effectiveness of the decolourisation of the solution was faster by using the nitrogen-modified TiO2.
Źródło:: Polish Journal of Chemical Technology; 2009, 11, 4; 1-6
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

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