室温下机械力将锰锤入 Bi3O4Br，实现高效光催化降解

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2023-12-11 DOI:10.1016/j.catcom.2023.106819

Tiange Wei , Yi Zhang , Yanan Liu , Mengxia Ji , Lina Li , Jintao Dong , Jun Di , Jiexiang Xia , Huaming Li

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引用次数: 0

摘要

我们提出了一种在室温下快速机械球磨掺杂 Mn2+ 的方法。球磨过程产生的机械力能够高效、稳定地将锰原子锤入 Bi3O4Br 晶格中。Mn2+ 的掺杂产生了禁带中的掺杂水平。同时，Mn2+ 能迅速清除光生空穴，减少光生载流子的重组，促进大量活性物种的产生。因此，掺杂 Mn2+ 的 Bi3O4Br 对抗生素四环素的光降解性能增强，最佳效率达到 81.74%，是 Bi3O4Br 的 1.22 倍。

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Mechanical forces hammer Mn into Bi3O4Br under room temperature for efficient photocatalytic degradation

A rapid mechanical ball milling method at room temperature has been proposed for Mn²⁺ doping. The mechanical force generated by the ball milling process was able to hammer Mn atom into the Bi₃O₄Br lattice in an efficient and stable manner. Doping with Mn²⁺ produces a doping level in the forbidden band. Also, Mn²⁺ promptly scavenged the photogenerated holes, reducing the recombination of photogenerated carriers and promoting the production of numerous active species. As a result, Mn²⁺ doped Bi₃O₄Br exhibited enhanced photodegradation performance towards antibiotic tetracycline, in which the optimal efficiency arrives 81.74%, 1.22 times higher than Bi₃O₄Br.

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.