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准MIL-53(Fe)光催化剂的合成及其可见光催化降解有机染料性能的提高

ZOU Qi-Chao,MA Yan,CHI Dian-Jun,QIAO Hong-Bin, ZHANG Jun-Ying,CHEN Qian,SUN Yu-Die, ZHANG Jian,ZHANG Kui,LIU Sheng-Jun

Chinese Journal of Inorganic Chemistry（2021）

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Abstract
以MIL-53(Fe)(以下简称MFe)为原料,通过热解制备了具有多孔结构的准金属-有机骨架(MOFs)MFe-T(T℃代表煅烧温度)光催化剂.在测试的催化剂中,MFe-250表现出最高的光降解性能,在90 min内降解99％亚甲基蓝(MB).从光电流和电化学阻抗谱的结果来看,MFe-250的电子传输能力超过了MFe.此外,捕获实验表明,在光催化降解MB过程中,羟基自由基(·OH)是必不可少的中间体.此外,还提出了光催化过程的机理.
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Key words
visible light,photodegradation,organic dyes,metal-organic frameworks
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