曹慧,贾凌云,刘文丽,刘鹏涛.纤维素/稀土杂化光致发光材料研究进展[J].中国造纸学报,2023,38(2):114-119 |
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纤维素/稀土杂化光致发光材料研究进展 |
Research Progress of Cellulose/Rare-earth Hybrid Photoluminescent Materials |
投稿时间:2022-04-25 |
DOI:10.11981/j.issn.1000-6842.2023.02.114 |
中文关键词: 纤维素 稀土离子 杂化材料 荧光 |
Key Words:cellulose rare-earth ion hybrid material fluorescence |
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中文摘要: |
镧系元素是一种金属稀土元素,其三价离子(Ln3+)具有独特的电子层结构,容易与氮、氧原子配位,具有独特的荧光性能,通过与有机配体配位可形成具有特殊拓扑结构的高配位化合物。但其内在缺陷如难以加工成形、伴随副反应发生、难降解等限制了其实际应用,因此通常需将稀土配合物与高分子基材复合以制备杂化材料。与传统高分子相比,新一代杂化基材——纤维素具有高比表面积、易降解、可再生、化学可修饰性等优点,逐渐被用作稀土杂化光致发光材料的载体。本文首先阐述了稀土金属的发光机理,随后对纤维素/稀土杂化光致发光材料的制备及其近年来在生物成像、医用敷料、荧光防伪、光电转换、荧光探针方面的研究进展进行了综述,并对其发展趋势进行了展望。 |
Abstract: |
Lanthanide is a metal rare-earth element; its trivalent ion (Ln3+) is prone to coordination with nitrogen and oxygen atoms due to their unique electronic layer structure, and exhibits unique fluorescence properties. The coordination of organic ligands forms high-coordination complexes with special topological structures. However, the inherent defects such as difficulty in processing and molding, accompanying side reactions, and refractory degradation limit the practical application of rare-earth coordination compound. Therefore, it is normally composited with polymer base to fabricate hybrid materials. Compared with traditional polymers, cellulose, as a new generation of hybrid matrix base materials, has the advantages of high specific surface area, degradability, renewability, and chemical modifiability, and is gradually used as the carrier for rare-earth hybrid luminescent materials. In this review, the research progress of cellulose/rare earth hybrid materials in bioimaging, medical dressings, photoelectric conversion, fluorescence anti-counterfeiting, and fluorescent probes in recent years was summarized, and its development trend was prospected. |
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