木质素基金属纳米粒子复合材料的制备及其应用研究进展

木质素是一种最丰富的芳香族天然高分子生物质资源，木质素纳米粒子既具有木质素原本特点，还具有纳米材料的纳米效应等特性，在众多功能材料领域具有很大的潜在应用价值，特别是作为绿色还原剂直接还原金属离子生成木质素基金属纳米粒子复合材料，被广泛应用于催化领域等。本文综述了木质素纳米粒子的制备及其在金属离子还原和金属纳米粒子负载的研究进展，重点综述了木质素基金属纳米粒子复合材料在不同应用领域的研究进展，最后总结并展望了木质素在金属纳米粒子复合材料制备和应用中面临的机遇和挑战。 

Research progress of preparation and application of lignin-based metal nanoparticles composites

Lignin is the most abundant aromatic polymer. Lignin nanoparticles exhibit properties of nanomaterials on the basis of retaining original characteristic, which have great potential in various functional nanomaterial. In especial, lignin nanoparticles can be used as a green reducing agent for the synthesis of metal nanoparticles to prepare the nano composite materials, which are widely used in the application of catalysis. In this paper, the preparation of lignin nanoparticles and their application for reduction of metal ion, and metal nanoparticles loading were reviewed. It's focused on the research progress of lignin-based metal nanoparticles composites in various fields. Finally, the opportunities and challenges of lignin in the preparation and application of metal nanoparticles composites were summarized and prospected.