用作吸附剂的双聚聚酯粘土-结晶纤维素复合材料的制备和表征

Md. Minhajul Islam, M. N. Khan, Shanta Biswas, T. R. Choudhury, Papia Haque, T. Rashid, M. Rahman
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引用次数: 23

摘要

由纤维素和Bijoypur粘土(高岭石)制备的生物复合材料与原始材料相比具有增强的性能。以黄麻纤维提取的纤维素和表面活性剂改性的Bijoypur粘土为原料,采用剥离-吸附法制备了生物复合材料。对复合材料和原料的热稳定性和吸附性能进行了对比研究。采用傅里叶红外光谱(FT-IR)、差示扫描量热法(DSC)、热重分析(TGA)和扫描电镜(SEM)对生物复合材料进行了表征。傅里叶变换红外光谱分析表明,该生物复合材料成功地改性了粘土,并掺入了聚合物和有机粘土。热重分析表明,随着粘土含量的增加,复合材料的热性能得到了改善。此外,与纤维素和粘土等天然吸附剂相比,复合材料在原液中对六价铬的吸附能力有所提高。通讯作者:孟加拉国达卡大学工程技术学院应用化学与化学工程系Mohammed Mizanur Rahman,电话:+880-2-9661920-70/7392;传真:+ 880-2-9667222;电子邮件:mizanur.rahman@du.ac.bd
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Preparation and characterization of bijoypur clay-crystalline cellulose composite for application as an adsorbent
Biocomposite prepared from cellulose and Bijoypur clay (Kaolinite) exhibited enhanced properties compared to their original counterparts. Cellulose extracted from jute fiber and Bijoypur clay modified with a surfactant were combined to fabricate a biocomposite by exfoliation-adsorption method. A comparative study was carried out to determine thermal stability and adsorption capacity of the composite and raw materials. Characterizations of the biocomposites were carried out by Fourier transform infrared spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM) analysis. FT-IR analysis showed successful modification of clay and incorporation of polymer and organoclay in the biocomposites. The composite has exhibited better thermal properties with increasing clay percentage in TGA analysis. Moreover, the composite showed improved adsorption capacity of hexavalent chromium in stock solution compared to natural adsorbent such as cellulose and clay. Correspondence to: Mohammed Mizanur Rahman, Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, Bangladesh, Tel: +880-2-9661920-70/7392; Fax: +880-2-9667222; E-mail: mizanur.rahman@du.ac.bd
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