壳聚糖改性分级沸石的合成与表征

IF 0.8 Q4 MATERIALS SCIENCE, BIOMATERIALS Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI:10.15259/pcacd.27.004

Agnieszka Feliczak-Guzik, Ewelina Musielak, I. Nowak

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引用次数: 0

摘要

本文以壳聚糖改性的FAU沸石为原料，合成了分级沸石。此外，在合成过程中还对硅源(正硅酸四乙酯)的添加量和结构剂的种类进行了改性。采用x射线衍射、透射电镜、扫描电镜、傅里叶变换红外光谱、低温氮吸附/脱附等温线等方法对合成材料进行了表征。所得结果证实了合成材料中额外孔隙率的实现。吸附实验表明，分级沸石改性壳聚糖具有较高的吸附量，吸附量为1.2 cm3 g-1。

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HIERARCHICAL ZEOLITES MODIFIED WITH CHITOSAN – SYNTHESIS AND CHARACTERISATION

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, Fouriertransform 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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来源期刊

Progress on Chemistry and Application of Chitin and its Derivatives MATERIALS SCIENCE, BIOMATERIALS-

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： Progress in the Chemistry and Application of Chitin and its Derivatives is an annual journal focused on all aspects of production, modification, enzymology and application of chitin and its many derivatives, including chitosan. The journal publishes full-length papers as well as invited reviews. To be considered, papers must present original research that has not been published or accepted for publication elsewhere. The language of the journal will be English.