光催化
异质结
光降解
纳米棒
降级(电信)
可见光谱
四环素
辐照
材料科学
化学工程
载流子
复合数
光化学
核化学
纳米技术
化学
催化作用
光电子学
有机化学
抗生素
物理
核物理学
工程类
电信
生物化学
计算机科学
作者
Fangyan Chen,Kun Bian,Hongshuang Li,Yubin Tang,Chen‐chen Hao,Weilong Shi
摘要
Abstract BACKGROUND MIL101(Fe) has attracted growing attention as a potential new photocatalyst. However, the drawbacks of easy recombination of photogenerated electron–hole pairs result in unsatisfactory activity. RESULTS In this work, to enhance the photocatalytic activity of MIL101(Fe), CeO 2 nanorods were attached on the surface of octahedral MIL101(Fe) to obtain a novel 1D/3D heterojunction CeO 2 /MIL101(Fe). The as‐synthesized samples were characterized by a series of methods. The photocatalytic activity of CeO 2 /MIL101(Fe) was investigated by photodegradation of tetracycline under visible‐light irradiation. Compared with pristine CeO 2 and MIL101(Fe), the as‐prepared CeO 2 /MIL101(Fe) composite with CeO 2 content of 10 wt% exhibited a superior photocatalytic activity, with a tetracycline (TC) degradation efficiency of 83.5% and a TOC removal rate of 55.7% within 120 min. CONCLUSION The enhanced photocatalytic performance is attributed to the efficient separation of photogenerated charge carriers resulting from the formation of type‐II heterojunction between CeO 2 and MIL101(Fe). This work provides a new approach for the fabrication of MOF‐based photocatalysts with high activity. © 2022 Society of Chemical Industry (SCI).
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