1. Matilda Lazić, Visoka tehnička škola strukovnih studija u Zrenjaninu, Serbia
2. Danijela Jašin, Visoka tehnička škola strukovnih studija u Zrenjaninu, , Serbia
AlFe pillared clays are obtained by intercalation of montmorillonite with mixed solution of two (Al3+ i Fe2+/3+) polyoxications. Representatives of solid, modern ecomaterials and heterogeneous catalysts. They are applied in the commercial catalytic technologies of the oil and petrochemical industry, but also in the field of environmental protection, for example, for photocatalytic treatment of wastewater contaminated with phenol. We investigated the effect of pillaring conditions: Al / Fe ratio and the pH of the solution for pillaring (OH / Me ratio) as well as the conditions of drying and calcination in the textural properties of the prepared samples AlFe pillared clays. It has been assumed that the application of the montmorillonite copillaring process and the conditions for its performance, significantly influence the improvement of the textural properties of the AlFe pillared clays compared to montmorillonite. Obtained results of the texture series of samples prepared at different Al / Fe rations and pH for pillaring; which are air-dried (105°C, 4h) and calcined (300°C, 2h) show that there has been a significant improvement in the tested texture properties of all prepared samples compared to the montmorillonite texture. The resulting differences in the textural properties of the samples prepared with the test parameters of the synthesis were explained by the influence of the different content of the iron ions and the pH of the solution to create a different size of the pillar space in the structure of the samples, which in consequence, causes differences in the size of the formed pores and other textural beings.
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Thematic field:
SIMPOZIJUM A - Nauka materije, kondenzovane materije i fizika čvrstog stanja
Date:
27.07.2019.
Contemporary Materials 2019 - Savremeni Materijali
Paper file