Abstract

Cellulose aerogel (CA) isolated from tea stem wastes (TSW) is a good fire retardant and heat insulator, environmentally friendly, thermally stable and highly porous material with a network structure. These outstanding properties have attracted a huge interest in the materials world. In this study, firstly, following delignification and removing hemicellulose, pure raw cellulose was isolated using TSW, hydrogel form of cellulose was prepared by regeneration of cellulose solution, and then, the final product (CA) was produced via freeze-drying. The data results showed that the aerogel had a three dimensionally network structure. Moreover, it can be deduced that thermal durability of the studied CA could be effective because of its fire retardant and heat insulating property. In addition, the production process of CA is easily available at low cost and sustainable.

中文翻译：

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作为一种新型纤维素气凝胶，回收农业生物废料的绿色化学研究

摘要

从茶梗废料（TSW）中分离出来的纤维素气凝胶（CA）是一种良好的阻燃剂和隔热材料，是一种环境友好，热稳定且具有网络结构的高度多孔材料。这些出色的性能引起了材料界的极大兴趣。在这项研究中，首先，在脱木素和去除半纤维素后，使用TSW分离纯净的原始纤维素，通过再生纤维素溶液制备纤维素的水凝胶形式，然后通过冷冻干燥生产最终产品（CA）。数据结果表明，气凝胶具有三维网络结构。此外，可以推断出所研究的CA由于其阻燃性和绝热性而具有良好的热耐久性。此外，