稀土氯氧化物作为一种重要的发光基质,具有较高的光吸收效率和传能效率,在彩色显示、催化、生物医药、光电转换、气敏等领域均有广泛的应用,已成为光功能材料领域的研究热点之一。目前研究者已用固相法、沉淀法、液相一高温焙烧法、水热与溶剂热法、前驱体热解法、溶胶一凝胶法、静电纺丝法等方法成功地制备了稀土氯氧化物微米颗粒,纳米颗粒、纳米条、纳米片、纳米棒、纳米针、纳米纤维、纳米带、纳米管等稀土氯氧化物微纳米材料。总结了各种制备方法的研究进展及优缺点,并结合本课题组在稀土氯氧化物纳米材料方面的研究工作,对稀土氯氧化物微纳米材料的制备方法的发展方向进行了展望。
The rare earth oxychlorides are extensively used as luminescent matrixes owing to their high ab- sorption of light and energy transfer efficiency. The rare earth oxychlorides have become one of the popular research subjects in the realm of optical functional ma- terials in recent years due to their wide applications in the fields of color display, catalysis, biolabeling, photoelectric conversion, gas sensing, etc. Presently, many methods have been successfully employed for fabrication of rare earth oxychloride micro- and nano- materials with different shapes, such as microparti- cles, nanobars, nanosheets, nanorods, nanoneedle bundles, nanofiber, nanobehs, nanotubes, etc. , in- cluding solid state reaction method, precipitation method, liquid-phase high temperature calcination method, hydrothermal-solvothermal method, precur- sors thermal decomposition method, sol-gel method and electrospinning technique. In this paper, the ad- vancements of the above fabrication methods are sum- marized, and the advantages and disadvantagesthese methods are discussed. Moreover, combining with our work on the preparation of rare earth oxychlo- ride nanomaterials, the development trends of fabrica- tion methods for rare earth oxychloride nanomaterials are also proposed.