Anti-Icing Materials (AIM) Laboratory, Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
Anti-Icing Materials (AIM) Laboratory, Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
Int J Biol Macromol. 2024 Mar;260(Pt 2):129569. doi: 10.1016/j.ijbiomac.2024.129569. Epub 2024 Jan 20.
Frequent oceanic oil spill incidents and the discharge of industrial oily wastewaters have caused serious threats to environments, food chains and human beings. Lignin wastes with many reactive groups exist as the byproducts from bioethanol and pulping processing industries, and they are either discarded as wastes or directly consumed as a fuel. To make full use of lignin wastes and simultaneously deal with oily wastewaters, porous lignin-based composites have been rationally designed and prepared. In this review, recent advances in the preparation of porous lignin-based composites are summarized in terms of aerogels, sponges, foams, papers, and membranes, respectively. Then, the mechanisms and the application of porous lignin-based adsorbents and filtration materials for oil/water separation are discussed. Finally, the challenges and perspectives of porous lignin-based composites are proposed in the field of oil/water separation. The utilization of abundant lignin wastes can replace fossil resources, and meanwhile porous lignin-based composites can be used to efficiently treat with oily wastewaters. The above utilization strategy opens an avenue to the rational design and preparation of lignin wastes with high-added value, and gives a possible solution to use lignin wastes in a sustainable and environmentally friendly way.
频繁的海洋溢油事件和工业含油废水的排放对环境、食物链和人类造成了严重威胁。木质素废料是生物乙醇和制浆加工行业的副产品，含有许多反应基团，它们要么被当作废物丢弃，要么直接作为燃料消耗。为了充分利用木质素废料并同时处理含油废水，人们合理设计并制备了多孔木质素基复合材料。在本文中，分别综述了气凝胶、海绵、泡沫、纸张和膜等多孔木质素基复合材料的制备进展。然后，讨论了多孔木质素基吸附剂和过滤材料用于油水分离的机理和应用。最后，提出了多孔木质素基复合材料在油水分离领域的挑战和展望。利用丰富的木质素废料可以替代化石资源，同时多孔木质素基复合材料可用于高效处理含油废水。这种利用策略为高附加值木质素废料的合理设计和制备开辟了道路，为以可持续和环保的方式利用木质素废料提供了一种可能的解决方案。
