Synthesis and Characterization of Zeolites for Anti-corrosion Application: The Effect of Precursor and Hydrothermal Treatment

Four different hydrothermal processes were used to synthesize NaX zeolites. The effect of the precursor, hydrothermal time and temperature on the zeolite structure was investigated in this research. The results of XRD and FESEM/EDX analysis indicated the key role of aluminum sources in the amorphous...

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Bibliographic Details
Published in:	Journal of materials engineering and performance Vol. 27; no. 9; pp. 4625 - 4634
Main Authors:	Rassouli, L., Naderi, R., Mahdavian, M., Arabi, A. M.
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-09-2018
Subjects:	Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion and Coatings Engineering Design Materials Science Quality Control Reliability Safety and Risk Tribology ion exchange capacity NaX zeolite corrosion inhibition hydrothermal synthesis
Online Access:	Get full text
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Summary:	Four different hydrothermal processes were used to synthesize NaX zeolites. The effect of the precursor, hydrothermal time and temperature on the zeolite structure was investigated in this research. The results of XRD and FESEM/EDX analysis indicated the key role of aluminum sources in the amorphous content and the structure of zeolite from non-zeolite sodium aluminum silicate hydrate to favorable NaX-faujasite. Moreover, the irregular shape of agglomerated hydrogel was changed from micro- to nano-zeolite structure via the hydrothermal process of different aluminum sources. It was found that the nano-zeolites could be formed by sodium aluminate source. In addition, the synthesized zeolite particles were examined as corrosion inhibitor reservoir, considering the effect of Si/Al ratio, particle size, and amorphous content. It was shown that there is a direct relation between crystallization and ion exchange capacity. Through monitoring the behavior of bare mild steel in sodium chloride solution containing zinc cations released from the zeolite particles, it was found that the nano-zeolite particles with low Si/Al ratio can offer the most effective corrosion inhibition.
ISSN:	1059-9495 1544-1024
DOI:	10.1007/s11665-018-3602-5