具有增强可见光驱动光催化活性的金属有机框架衍生的球花状多孔CoO/FeO异质结构
Metal-Organic-Framework-Derived Ball-Flower-like Porous CoO/FeO Heterostructure with Enhanced Visible-Light-Driven Photocatalytic Activity.
作者信息
Cao Qi, Li Qingqing, Pi Zhichao, Zhang Jing, Sun Li-Wei, Xu Junzhou, Cao Yunyi, Cheng Junye, Bian Ye
机构信息
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Wuxi Engineering Research Center of Taihu Lake Water Environment, Southeast University, Nanjing 210096, China.
Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China.
出版信息
Nanomaterials (Basel). 2022 Mar 9;12(6):904. doi: 10.3390/nano12060904.
A porous ball-flower-like CoO/FeO heterostructural photocatalyst was synthesized via a facile metal-organic-framework-templated method, and showed an excellent degradation performance in the model molecule rhodamine B under visible light irradiation. This enhanced photocatalytic activity can be attributed to abundant photo-generated holes and hydroxyl radicals, and the combined effects involving a porous structure, strong visible-light absorption, and improved interfacial charge separation. It is notable that the ecotoxicity of the treated reaction solution was also evaluated, confirming that an as-synthesized CoO/FeO catalyst could afford the sunlight-driven long-term recyclable degradation of dye-contaminated wastewater into non-toxic and colorless wastewater.
通过一种简便的金属有机框架模板法合成了一种多孔球状花状CoO/FeO异质结构光催化剂，该催化剂在可见光照射下对模型分子罗丹明B表现出优异的降解性能。这种增强的光催化活性可归因于大量的光生空穴和羟基自由基，以及多孔结构、强可见光吸收和改善的界面电荷分离等综合效应。值得注意的是，还评估了处理后的反应溶液的生态毒性，证实合成的CoO/FeO催化剂能够实现阳光驱动的染料污染废水长期可循环降解为无毒无色废水。
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