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碳纳米管具有独特的一维管状结构和优异的电、光、热和力学性能,是药物和纳米催化剂的理想载体。将具有独特光、电、磁和催化性能的贵金属纳米粒子负载在碳纳米管的表面,形成的碳纳米管/贵金属纳米粒子复合物不仅兼有两种纳米材料的优异性能,还可能产生新的特性,在催化、储能、燃料电池、电子器件和传感器等领域均有广阔的应用前景。本文主要从共价修饰和非共价修饰两种策略出发,综述了贵金属纳米粒子修饰碳纳米管的制备方法和研究进展。其中用天然高分子包覆的碳纳米管表面具有很好的贵金属配位结合能力,得到的纳米复合物具有良好的水分散性和生物相容性,在载药、生物传感器和肿瘤诊断治疗等生物领域具有明显的优势。
Carbon nanotubes have a unique one-dimensional tubular structure and excellent electrical, optical, thermal and mechanical properties, and are ideal carriers for drugs and nanocatalysts. The precious metal nanoparticles with unique optical, electrical, magnetic and catalytic properties are supported on the surfaces of the carbon nanotubes. The formed carbon nanotube / noble metal nanoparticle composite not only combines the excellent performance of the two nanomaterials, but also may generate new Features in the catalytic, energy storage, fuel cells, electronic devices and sensors and other fields have broad application prospects. In this paper, mainly from covalent modification and non-covalent modification of two strategies, reviewed the preparation of precious metal nanoparticles modified carbon nanotubes and research progress. Among them, the surface of carbon nanotubes coated with natural polymers have good coordination and bonding ability of precious metals, and the resulting nanocomposites have good water dispersibility and biocompatibility. In drug loading, biosensors and tumor diagnosis and treatment The biological field has obvious advantages.