纤维素基金属纳米粒子复合催化剂的制备与应用

Preparation and application of cellulose-based metal nanoparticles composite catalysts

  • 摘要: 纤维素是一种来源广泛、比表面积大、多羟基且环境友好型的生物高分子材料,其水悬浮液可形成三维网络缠结结构,从而为具有催化活性的金属纳米粒子提供负载位点,使其均匀分散并固定于基底内部或表面构建复合催化剂材料,进而有效提高催化性能。本文综述了纤维素基金属纳米粒子复合催化剂的制备及应用的相关研究,重点介绍了不同纤维素基材料作为基底制备金属纳米粒子复合催化剂的方法及其优缺点,归纳了金属纳米粒子在纤维素基材料中的负载途径及原理,重点阐述了纤维素基材料在复合催化剂中的主要作用,最后对纤维素基材料在金属纳米粒子复合催化剂领域的研究工作进行了总结与展望,为纤维素基复合催化剂材料的制备和应用提供参考。

     

    Abstract: Cellulose is the most abundant organic polymer in nature, with many advantages like broad resource of raw material, large specific surface area, abundant hydroxyl groups and environmentally friendly. Besides, cellulose can form three-dimensional network structure in aqueous suspension, which provides loading sites for metal nanoparticles to make them disperse well and binds well with cellulose and prepares the composite catalysts with improved catalytic performance. Herein, the preparation and application of cellulose-based composite catalysts with metal nanoparticles were summarized, the methods and merits of the composite catalysts with various cellulosic materials were highlighted. Furthermore, the loading methods and principles of metal nanoparticles were generalized, and the main functions of cellulosic materials in composite catalysts were elaborated. Finally, the researches of cellulose-based composite catalysts with metal nanoparticle were summarized. This work can be a reference for the preparing and applying of cellulosic composite catalysts.

     

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