Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur 603203, Chengalpattu District, Tamil Nadu, India..
Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur 603203, Chengalpattu District, Tamil Nadu, India.
Int J Biol Macromol. 2024 Nov;279(Pt 2):134996. doi: 10.1016/j.ijbiomac.2024.134996. Epub 2024 Aug 23.
The environmental pollution caused by heavy metal ions has become a serious global environmental issue. Heavy metal contaminants released from industrial effluents, agricultural runoff, and human activities, can enter into water resources. The toxicity of these heavy metal ions even at trace concentrations presents a substantial hazard to both aquatic systems and human well-being. The membrane separation processes have become more promising sustainable techniques for the separation of metal ions from the effluent. The research efforts have been concentrated on improving the synthesis of membranes and membrane materials to facilitate the sustainable separation of heavy metals. The application of chitosan in the fabrication of membranes is getting more attention. Chitosan, a natural polysaccharide derived from chitin, is abundant in nature and has active hydroxyl and amino groups suitable for the separation of heavy metal ions. It exhibits excellent chelating tendency, biocompatibility, and biodegradability. The functionalization of chitosan to improve its mechanical strength, chemical stability, and antifouling properties has become an ongoing area of research. This review examines the synthesis and efficient applications of chitosan blended membranes. The review concludes by outlining the current challenges and proposing future research prospects to enhance the applicability of chitosan-blended membranes in environmental remediation.
重金属离子造成的环境污染已成为严重的全球环境问题。工业废水、农业径流和人类活动释放的重金属污染物会进入水资源。即使在痕量浓度下，这些重金属离子的毒性对水生系统和人类健康都构成了重大威胁。膜分离工艺已成为从废水中分离金属离子的更有前途的可持续技术。研究工作集中在改进膜和膜材料的合成，以促进重金属的可持续分离。壳聚糖在膜制备中的应用受到了更多的关注。壳聚糖是一种天然多糖，来源于几丁质，在自然界中含量丰富，具有适合分离重金属离子的活性羟基和氨基。它表现出优异的螯合倾向、生物相容性和生物降解性。壳聚糖的功能化可提高其机械强度、化学稳定性和抗污染性，这已成为一个持续的研究领域。本综述考察了壳聚糖共混膜的合成和有效应用。最后，本文概述了当前的挑战，并提出了未来的研究展望，以提高壳聚糖共混膜在环境修复中的适用性。
