Adsorption of Ammonium Ion on Crystalline Na-LTA Zeolite and Noncrystalline Pseudomorph after Na-LTA Zeolite
نویسندگان
چکیده
منابع مشابه
Periodic modeling of zeolite Ti-LTA.
We have proposed a combination of density functional theory calculations and interatomic potential-based simulations to study the structural, electronic, and mechanical properties of pure-silica zeolite Linde Type A (LTA), as well as two titanium-doped compositions. The energetics of the titanium distribution within the zeolite framework suggest that the inclusion of a second titanium atom with...
متن کاملAdsorption characteristics of ammonium ion by zeolite 13X.
With synthetic wastewater, lab-scale batch experiments and column experiments were carried out to investigate the adsorption characteristics of ammonium ion by zeolite 13X which is a hydrothermally synthetic byproduct accompanied with preparation of potassium carbonate from insoluble potash ores. The Langmuir and Freundlich models were applied to describe the equilibrium isotherms for ammonium ...
متن کاملAntimicrobial Activity of Silver-Zeolite LTA on Heavily-Contaminated Underground Ghanaian Waters
Zeolite LTA was synthesized in the laboratory and loaded with silver ions by isomorphous substitution technique. The silverloaded zeolite A (Ag-LTA) was characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and Fourier transformed infrared (FTIR) spectroscopy. XRD and SEM analysis showed little or no changes in the phase purity of a...
متن کاملMonitoring of the crystallization of zeolite LTA using Raman and chemometric tools.
LTA zeolite is used both in industry as well as in laboratories, because of its spatial-specific structure which is useful in gas adsorption and in ion exchange separation. At-line reaction monitoring and multivariate analysis of data, such as Principal Component Analysis (PCA), are fundamentals of the Process Analytical Technology (PAT), which consists of the use of analyzers with rapid detect...
متن کاملFramework stabilization of Si-rich LTA zeolite prepared in organic-free media.
Zeolite HOU-2 (LTA type) is prepared with the highest silica content (Si/Al = 2.1) reported for Na-LTA zeolites without the use of an organic structure-directing agent. The rational design of Si-rich zeolites has the potential to improve their thermal stability for applications in catalysis, gas storage, and selective separations.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Ion Exchange
سال: 2003
ISSN: 1884-3360,0915-860X
DOI: 10.5182/jaie.14.supplement_121