School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, China.
School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, China.
Int J Biol Macromol. 2023 Dec 31;253(Pt 3):126984. doi: 10.1016/j.ijbiomac.2023.126984. Epub 2023 Sep 19.
The growing shortage of non-renewable resources and the burden of toxic pollutants in water have gradually become stumbling blocks in the path of sustainable human development. To this end, there has been great interest in finding renewable and environmentally friendly materials to promote environmental sustainability and combat harmful pollutants in wastewater. Of the many options, lignocellulose, as an abundant, biocompatible and renewable material, is the most attractive candidate for water remediation due to the unique physical and chemical properties of its constituents. Herein, we review the latest research advances in lignocellulose-based adsorbents, focusing on lignocellulosic composition, material modification, application of adsorbents. The modification and preparation methods of lignin, cellulose and hemicellulose and their applications in the treatment of diverse contaminated water are systematically and comprehensively presented. Also, the detailed description of the adsorption model, the adsorption mechanism and the adsorbent regeneration technique provides an excellent reference for understanding the underlying adsorption mechanism and the adsorbent recycling. Finally, the challenges and limitations of lignocellulosic adsorbents are evaluated from a practical application perspective, and future developments in the related field are discussed. In summary, this review offers rational insights to develop lignocellulose-based environmentally-friendly reactive materials for the removal of hazardous aquatic contaminants.
可再生资源的日益短缺和水中有毒污染物的负担逐渐成为可持续人类发展道路上的绊脚石。为此，人们非常关注寻找可再生和环保材料，以促进环境可持续性和应对废水中的有害污染物。在众多选择中，木质纤维素作为一种丰富、生物相容和可再生的材料，由于其组成部分的独特物理和化学性质，是水修复最具吸引力的候选材料。本文综述了基于木质纤维素的吸附剂的最新研究进展，重点介绍了木质纤维素的组成、材料改性、吸附剂的应用。系统而全面地介绍了木质素、纤维素和半纤维素的改性和制备方法及其在处理各种污染水方面的应用。此外，还详细描述了吸附模型、吸附机制和吸附剂再生技术，为理解潜在的吸附机制和吸附剂回收提供了极好的参考。最后，从实际应用的角度评估了木质纤维素吸附剂的挑战和局限性，并讨论了相关领域的未来发展。总之，本综述为开发基于木质纤维素的环保反应性材料以去除危险的水污染物提供了合理的见解。
