Title :
The influence of seawater ions on the structural features of MFI, FAU and LTA zeolites
Author :
Zhu, Bo ; Zou, Linda ; Lin, Y.S. ; Hill, Anita ; Wang, Huanting ; Huang, Yi ; Duke, Mikel
Author_Institution :
Inst. for Sustainability & Innovation, Victoria Univ., Werribee, VIC, Australia
Abstract :
In this work, we study the structural response of MFI, FAU and LTA type zeolite powders to the presence of cations commonly found in sea salts including Na+, K+, Ca2+, and Mg2+. Zeolite powders were exposed to seawater solution (3.8 wt% (TDS)), and the structure of the zeolite powders was characterized by synchrotron X-ray powder diffraction. The results obtained from ion adsorption testing and synchrotron X-ray powder diffraction showed that the zeolites interacted with monovalent and divalent cations, and these interactions altered the crystal dimensions of the zeolites. The changes in structure could possibly affect diffusion properties of these materials when used as membranes for desalination.
Keywords :
X-ray diffraction; adsorption; calcium; crystal structure; diffusion; magnesium; membranes; potassium; powders; seawater; sodium; zeolites; Ca; FAU type zeolite powders; K; MFL type zeolite powders; Mg; Na; Na2Al2Si3O10H2O; crystal dimensions; crystalline structure; desalination membranes; diffusion properties; divalent cations; ion adsorption testing; monovalent cations; seawater ion solutions; structural properties; synchrotron X-ray powder diffraction; type zeolite powderszeolites; Desalination; Diffraction; Ions; Materials; Powders; Synchrotrons; X-ray diffraction; FAU; LTA; MFI; desalination; ion interactions; structure change; synchrotron X-ray powder diffraction; zeolites;
Conference_Titel :
Nanoscience and Nanotechnology (ICONN), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-5261-3
Electronic_ISBN :
978-1-4244-5262-0
DOI :
10.1109/ICONN.2010.6045228
