CRYSTALLIZATION AND CHARACTERIZATION OF CHROMIUM-CONTAINING SILICALITE-1

https://doi.org/10.22146/ijc.21805

Hari Sutrisno(1*), Endang Dwi Siswani(2), Susila Kristianingrum(3), Suharto Suharto(4)

(1) Department of Chemical Education, Faculty of Mathematics and Natural Sciences Yogyakarta State University (UNY), Yogyakarta 55281
(2) Department of Chemical Education, Faculty of Mathematics and Natural Sciences Yogyakarta State University (UNY), Yogyakarta 55281
(3) Department of Chemical Education, Faculty of Mathematics and Natural Sciences Yogyakarta State University (UNY), Yogyakarta 55281
(4) Department of Chemical Education, Faculty of Mathematics and Natural Sciences Yogyakarta State University (UNY), Yogyakarta 55281
(*) Corresponding Author

Abstract


Chromium-containing silicalite-1, designed CrS-1, was synthesized by the hydrothermal method and characterized by XRD and FTIR techniques. The objectives of the research are to study the synthesis of CrS-1 and investigate the effect of crystallization temperatures and times toward its character. All samples of CrS-1 crystallized in orthorhombic structure and Pnma space group. The phase observed in the XRD patterns of CrS-1 synthesized from 150 to 190 oC for 11 days showed only MFI-type phase. The CrS-1 prepared under static condition for 1 day at 150 oC indicated α-SiO2 phase, on the contrary, the samples conditioned for 2 to 8 days at 150 oC are only MFI phase.


Keywords


Crystallization; synthesis; chromium silicate CrS-1; incorporation

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DOI: https://doi.org/10.22146/ijc.21805

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