- Tytuł:
- Characteristics of natural and synthetic molecular sieves and study of their interactions with fragrance compounds
- Autorzy:
-
Kasperkowiak, M.
Strzemiecka, B.
Voelkel, A. - Powiązania:
- https://bibliotekanauki.pl/articles/110548.pdf
- Data publikacji:
- 2016
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
molecular sieves
fragrance compounds
adsorption properties
thermodynamic parameters
thermal stability - Opis:
- Structural, physicochemical and adsorption properties of two natural and one synthetic molecular sieves were investigated by various techniques: X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, low-temperature nitrogen adsorption and inverse gas chromatography. The influence of these properties on the ability to adsorb two model fragrances: p-cymene and menthol was studied. The free enthalpy, entropy and Gibbs free energy of adsorption of fragrance molecules on the surface of zeolite and zeolite-like materials were estimated by using inverse gas chromatography. Also, the influence of temperature on the stability of solid-fragrance compound systems as well as the release of the adsorbed fragrance compounds was studied. The obtained results exhibit that both porosity and chemical composition of molecular sieves influence the size and strength of adsorption of fragrance compounds. The study indicated different release characteristics for p-cymene and menthol.
- Źródło:
-
Physicochemical Problems of Mineral Processing; 2016, 52, 2; 789-802
1643-1049
2084-4735 - Pojawia się w:
- Physicochemical Problems of Mineral Processing
- Dostawca treści:
- Biblioteka Nauki
Artykuł