Zeta potential of beta zeolites: Influence of structure, acidity, pH, temperature and concentration

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Xuan Liu, Päivi Mäki-Arvela, Atte Aho, Zuzana Vajglova, Vladimir M. Gun’ko, Ivo Heinmaa, Narendra Kumar, Kari Eränen, Tapio Salmi, Dmitry Yu. Murzin
Publiceringsår: 2018
Tidskrift: Molecules
Volym: 23
Nummer: 4
Artikelns första sida, sidnummer: 1
Artikelns sista sida, sidnummer: 14
eISSN: 1420-3049


Abstrakt

Measurements of the zeta potential of solid heterogeneous supports are important for preparation of metal supported catalysts and for shaping zeolites into extrudates. In the current work, different types of heterogeneous support materials such as SiO2, Al2O3, and a range of beta zeolites of different silica- to-alumina ratio were analysed. It was observed that parameters such as temperature, pH and acidity significantly affect the zeta potential. In several instances, depending on the materials’ acidity and microstructure, maxima in zeta potential were observed. The solid materials were thoroughly characterized using XRD, SEM, EDX, TEM, nitrogen physisorption, Al-NMR and FTIR with pyridine before zeta potential measurements.


Nyckelord

Chemical Engineering

Senast uppdaterad 2019-14-12 vid 03:01