Abstract In this study, we developed an instrumental hybrid catalytic system comprising cellulose fiber and volcanic pumice powder, which was applied as a suitable organic–inorganic hybrid catalyst for the synthesis of 2,4,5-triarylimidazole derivatives. High reaction yields (97%) were obtained in short reaction times (20 min) using this catalytic system. In physical terms, the high porosity of pumice provides an extremely high active surface area for electronic interactions among the components. Moreover, the most distinctive properties of this catalytic system are high biodegradability, simple separation of the catalyst, and good reusability. The natural pumice can be recovered easily using an external magnet and reused with no significant decline in the catalytic activity. The structural characteristics of this efficient catalytic system were assessed using various analytical methods.

中文翻译：

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浮石改性纤维素纤维：一种用于合成 2,4,5-三芳基咪唑衍生物的环境友好型固态杂化催化体系

摘要 在本研究中，我们开发了一种由纤维素纤维和火山浮石粉组成的仪器杂化催化体系，该体系用作合适的有机-无机杂化催化剂，用于合成 2,4,5-三芳基咪唑衍生物。使用该催化系统在较短的反应时间（20 分钟）内获得了高反应产率（97%）。在物理方面，浮石的高孔隙率为组件之间的电子相互作用提供了极高的活性表面积。此外，该催化体系最显着的特性是高生物降解性、催化剂的简单分离和良好的可重复使用性。天然浮石可以使用外部磁铁轻松回收并重复使用，催化活性不会显着下降。