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HIERARCHICAL ZEOLITES MODIFIED WITH CHITOSAN – SYNTHESIS AND CHARACTERISATION

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Feliczak-Guzik A., Musielak E., Nowak I.
Progress on Chemistry and Application of Chitin and its Derivatives
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2022
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vol. 27
54-66
EN
This paper describes the synthesis of hierarchical zeolites based on a commercial FAU zeolite modified with chitosan. Additionally, the amount of silicon source added (tetraethyl orthosilicate) and the type of structuring agent used were modified during synthesis of the materials. The synthesised materials were characterised by the following methods: X-ray diffraction, transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, and low-temperature nitrogen adsorption/ desorption isotherms. The obtained results confirmed the achievement of additional porosity in the synthesised materials. According to the adsorption experiments, the hierarchical zeolite-modified chitosan had a high adsorption capacity of 1.2 cm3 g-1.
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