Investigation of an ion-exchanged synthetic zeolite with a copper tetramine ion

Szakál, Tamás and Kalocsai, Renátó and Giczi, Zsolt and Schmidt, Rezső and Vasas, Dávid and Kukurová, Kristína and Svétlíková, Angela and Polovka, Martin (2022) Investigation of an ion-exchanged synthetic zeolite with a copper tetramine ion. ACTA AGRONOMICA ÓVÁRIENSIS, 63 (Ksz). pp. 4-21. ISSN 1416-647X

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Abstract

Zeolite is one of the most versatile minerals on our planet. It can be found in our environment in a natural form, but it can already be produced artificially, thus increasing the versatility of its usability. Natural and artificial zeolites are widely used in industry and agriculture. It is used in agriculture in large quantities, that is for soil improvement, nutrient intake, feeding, deodorization. The significant ion exchange capacity further expands its field of application. It can be used in many forms in its natural form, though its real industrial value is given by its artificial shape, because with its regular shape, different pore sizes, it is possible to produce the most suitable type for the purpose by creating the most convenient form and pore size version for a variety of purposes. We used a derivatograph, X-ray diffraction, and electron microscopy to examine the zeolite. We examined the settling rate of the aqueous suspension of the synthesized zeolite and the copper-ion-exchanged synthesized zeolite and found that the settling rate of the suspension was low for both zeolite and copper-ion-exchanged zeolite. Based on the EDX recording of the Zeolone P4A type synthesized zeolite, it can be clearly seen that the Si:Al ratio in the zeolite is close to 1:1 (Si atom% = 10.16 and Al atom% = 11.81). Based on the recording, the EDX spectrum of the ion-exchanged zeolite shows that the ratio of Si:Al in the zeolite is approximately one, i.e. it is probable that no change in the lattice structure occurred due to ion exchange. It is clear from X-ray diffraction analysis that Cu was not incorporated into the crystal lattice of the zeolite. It is clear from the scanning electron microscope that there was no change in size or shape with respect to the zeolite due to ion exchange.

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