金属-石墨相氮化碳纳米管异质结的光催化研究进展

Recent advances in metal-graphitic carbon nitride nanotube heterojunctions for photocatalysis

异质结构是一系列含有不同组分材料形成的单一结构的纳米复合材料。金属-石墨相氮化碳纳米管异质结材料由于具有金属和氮化碳纳米管组合的独特结构、良好的抗光腐蚀性能、较高的可见光利用率、更多的活性位点和较低的还原反应电位等特点被广泛关注。此外,异质结本身特有的结构和光学性能极大提高和拓展了其在光催化领域的潜在应用。该文介绍了金属材料的性质、金属-氮化碳纳米管异质结的制备方法和结构调控以及该复合材料近期在光催化应用中的进展。阐述了金属-石墨相氮化碳纳米管异质结材料的性质、制备方法以及该材料在光催化领域中的应用,提出了金属-石墨相氮化碳纳米管异质结材料目前的局限性和未来的发展趋势。

Heterostructures are a series of nanocomposites containing individual nanostructures formed from different compositions.Metal-graphitic carbon nitride nanotube heterojunctions have attracted extensive attention due to their unique structure with a combination of metal and carbon nitride nanotubes,good resistance to photo-corrosion,high visible light utilization,abundant active sites and decreased reduction reaction potential.Moreover,the unique structure and optical properties of heterojunction greatly improve and expand their application potential in photocatalysis.Herein,the properties of metallic materials,the preparation methods and structural modulation of metal-carbon nitride nanotube heterojunctions,and the recent developments progress of these composites in photocatalytic applications were systematically reviewed.The properties and preparation methods of metal-graphitic phase carbon nitride nanotube heterojunctions materials,and the applications of these materials in photocatalysis were then described.Finally,the existing problems and future development trends of metal-graphitic phase carbon nitride nanotube heterojunction materials were put forward.