- Tytuł:
-
Badania spektroskopowe (IR) i termograwimetryczne utlenionych adsorbentów węglowych
Studies of oxidized carbonaceous adsorbents by IR spectroscopy and thermogravimetry - Autorzy:
-
Choma, J.
Jaroniec, M.
Burakiewicz-Mortka, W. - Powiązania:
- https://bibliotekanauki.pl/articles/237065.pdf
- Data publikacji:
- 2000
- Wydawca:
- Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
- Tematy:
-
adsorpcja
właściwości adsorpcyjne
adsorbenty węglowe
węgle aktywne
utlenianie adsorbentów węglowych
badania spektroskopowe
badania termograwimetryczne
termograwimetria - Opis:
- Carbonaceous adsorbents (active carbons and carbon blacks) were oxidized in aqueous solutions of hydrogen peroxide, perchloric acid and nitric acid at room temperature and additionally at boiling temperature in the case of nitric acid. Changes occurring on the carbon surface during oxidation were monitored by IR spectroscopy and high-resolution thermogravimetry. Various oxygen groups (carboxylic, phenolic, carbonyl, ether) of differentiated thermal stability were found to form on the carbon surface.This effect was most distinct on active carbons and carbon blacks oxidized with HNO3 at boiling temperature. Carbons oxidized under these conditions were more hydrophilic than those of corresponding unoxidized samples.
- Źródło:
-
Ochrona Środowiska; 2000, 1; 3-6
1230-6169 - Pojawia się w:
- Ochrona Środowiska
- Dostawca treści:
- Biblioteka Nauki