金属掺杂改性钙钛矿型氧化物的研究进展

Research Progress on Doping Metal Elements Modifying Perovskite-type Oxides

钙钛矿型氧化物由于其具有独特物理性质、化学性质和高的结构稳定性,日益成为材料科学领域的研究热点。但由于催化活性偏低,并且带隙能较高,不能高效利用太阳光谱中所含丰富的可见光,因此限制了该技术的推广应用。金属元素掺杂钙钛矿型氧化物可以有效改善其光催化性能,目前采用的方法主要有溶胶-凝胶法、水热法、固相反应法及微乳液法等,最后提出掺杂改性钙钛矿型氧化物的研究发展。

Perovskite-type oxides become hotspot of material science because of their unique physical and chemical properties and stable structure,their poor photocatalytic properties and hish band energy,however,it is a major impediment for application. Metal elements doping technology was effectively applied to improve photoeatalytic properties of pemvskite-type oxides. The main methods for preparing perovskite-type oxides were sol-gel method,hydrothermal method,solid-state reaction method,micmemulsion method,etc.,the development tredency of photocatalysis was also proposed.