光催化
光降解
材料科学
降级(电信)
化学工程
异质结
热液循环
可见光谱
金属有机骨架
复合数
化学
催化作用
复合材料
光电子学
计算机科学
有机化学
工程类
吸附
电信
作者
Zhiwei Ye,Sheng Feng,Wei Wu,Yun Zhou,Yang Wang,Xiaojun Dai,Xun Cao
标识
DOI:10.1016/j.solidstatesciences.2022.106842
摘要
In this paper, the Co-MIL-53(Fe)–NH2/UIO-66-NH2 (CoMU) Hybrid materials with Ⅱ-type heterojunction was synthesized through hydrothermal reaction. Compared with the degradation of tetracycline (TC) by monomer materials, CoMU has the highest photocatalytic degradation efficiency, which can reach a degradation equilibrium within 8 min. As a typical Ⅱ-based MOFs (Metal organic frameworks) material, UIO-66-NH2 can effectively promote the separation and transfer of photoelectric carriers. The introduction of cobalt ions in Fe-based MOFs materials further promoted the transfer of charges through the continuous oxidation-reduction reaction of Co3+/Co2+. The performance of CoMU is explored by studying the influence of TC concentration, pH value, different PMS dosage and different water bodies on the experiment. Active radical capture experiments show that H+ and ·O2− play a major role in the degradation of TC. In addition, based on the analysis of experimental results, a possible photocatalytic mechanism was discussed. Our results provide insight into the design and construction of high-efficiency hybrid photocatalysts combined with MOFs materials to enhance photocatalytic activity for the photodegradation of environmental pollutants.
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