【摘要】 由水解法在发光粉Sr4Al14O25:Eu2+,Dy3+表面原位制备了光催化剂BiOCl,得到了新型蓄能光催化材料BiOCl/Sr4Al14O25:Eu2+,Dy3+。这种蓄能光催化材料能够储存外界光能,并缓慢释放为光催化反应提供能源,实现了无外光照射下的催化降解功能。这种材料具有稳定、可重复利用的优点,有潜在的实际应用价值。蓄能光催化材料打破了光催化反应只能在外光源照射下进行反应、关闭外光源即停止反应的限制,为光催化反应不受光源限制从而长期进行光催化反应提供了一种思路和实用材料。更多还原

【Abstract】 A new light-storing photocatalyst BiOCl/ Sr4Al14O25: Eu2+, Dy3+ was prepared by chemically combining BiOCl and phosphor Sr4Al14O25: Eu2+, Dy3+. The light-storing photocatalyst (LSP) can store light irradiation and emit slowly. It remained active when the irradiation source was cut off. Rhodamine B (RhB) can be decomposed efficiently by LSP in the dark after it absorbs light irradiation. It is stable and can be repeatedly used. This light-storing photocatalyst is photoreactive with or without light irradiation.更多还原