Structural study of mordenite from Mátra Mts. (N-Hungary): dachiardite moduls reduce channel size in mordenite

Adsorption Onto Na-Mordenite

In the present study, the adsorption behaviors of mordenite (a common zeolite) with respect to Cu 2+ and Ni 2+ from aqueous solutions were investigated. The sorption data followed the Freundlich and Langmuir isotherms. The maximum sorption capacities were found to be 9.778 and 5.371 mg/g at pH 6, initial concentration of 40 mg/L and temperature of 30 for Cu 2+ and Ni 2+ , respectively. The kine...

Electrochemical Study of Encapsulated Heteropolyacids in Acidic Mordenite Zeolite

12-molybdophosphoric acid (PMo12) was encaged into HMOR zeolite by “ship in a bottle”method in aqueous phase which is strongly retained and not easily leached from the host channels.The solid was characterized by XRD prior to using it for the electrode preparation. This compoundwas incorporated with a carbon paste electrode for cyclic voltammetric measurements. PMo12immobilized on the support u...

Synthesis and Control of the Size of Large Mordenite Crystals using Porous Silica Substrates

Removal of Heavy Metals from Aqueous Solution by Mordenite Nanocrystals

This study examined the ability of the synthetic mordenite nanocrystal to remove Tl(III) and As(III) from an aqueous solution. The determination of the concentration changes of H+ and OH- quantities in the acidic (pH 3) and alkali (pH 9) treated mordenite nanocrystals were done by the potentiometric titration curves. The maximum uptake capacities (Qmax) of these metal ions using the mordenite i...

Growth mechanism of a preferentially oriented mordenite membrane.

A preferentially oriented mordenite membrane was successfully prepared on a seeded porous a-alumina support. Characterization results of XRD (X-ray diffractometer) and FE-SEM (field emission scanning electron microscope) revealed that evolutionary selection might predominantly contribute to the formation of the sharply oriented mordenite membrane. The necessary conditions under which evolutiona...