纳米α-Fe2O3可见光催化剂的制备及掺杂改性研究进展

Research progress in preparation and doping modification ofα-Fe2O3

纳米α相三氧化二铁(α-Fe2O3)具有化学性质稳定、环境友好、制备成本低和窄禁带宽度的特性,是一种理想的可见光催化剂。文章介绍了α-Fe2O3不同制备方法的研究进展,尤其总结了一些特殊结构的制备工艺。着重分析了掺杂剂种类对α-Fe2O3的光催化降解有机污染物活性的影响和影响机制,并总结了α-Fe2O3光催化剂掺杂改性研究的发展趋势。

Nano-iron oxide(α-Fe2O3)is characterized by its stable chemical properties,environmental friendliness,low preparation cost,and narrow band gap,which makes it an ideal visible-light catalyst.The article introduces the research progress of different preparation methods ofα-Fe2O3,with an emphasis on the preparation process of some special structures.The research focuses on the effects of different dopants on photocatalytic performance for degradation of organic pollutants and on their enhancement mechanism as well.Also,the development trends and application prospection of dopedα-Fe2O3 are summarized.