Crystallization of mordenite zeolite with seed addition in reaction mixtures with different SiO2/Al2O3 ratios.
DOI:
https://doi.org/10.14808/sci.plena.2016.043101Keywords:
synthesis, zeolite, mordenite.Abstract
The synthesis of samples of mordenite were performed using the hydrothermal method using two different types of crystallization seed (mordenite and ferrierite), where they were exploited to change some parameters of the synthesis, such as SiO2/Al2O3 = 20, 60 and 100 and the ratio OH/SiO2 = 0.2, 0.3 and 0.4, at different times of crystallization, at a temperature of 170 °C. The samples were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA/DTA), nitrogen adsorption at -196 °C (BET) and temperature programmed desorption of ammonia (NH3-TPD). It was found that the use of the ratio OH/SiO2 = 0.4, together with the seeds of the most MOR and FER crystalline samples were obtained, demonstrating the critical role of mineralizing agent OH- in the middle.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
