金属-有机框架材料(MOFs)是由金属离子或者金属簇合物与有机配体桥连构成的一类新颖的结晶性多孔固体高分子材料,其无/少缺陷的晶态有序结构和多孔特性使其在电子空穴有效分离上具有独特的优势;石墨碳氮化物(g-C3N4)由于其独特的固有二维(2D)晶体结构,可见光响应能力(带隙≈2.7eV)和优异的化学性质稳定性,在光催化领域应用很广泛。由于两者独特的光催化性能,对两者复合光催化剂的研究也日益增加,介绍了MOFs/g-C3N4复合催化剂的制备方法及在光催化中的应用,分析了光催化反应机理,展望了MOFs/g-C3N4复合催化剂在环境污染治理方面的应用前景。
Metal-organic framework materials (MOFs) are a class of novel crystalline porous solid materials composed of metal ions or metal clusters and organic ligands.The crystalline ordered structure and porous properties of no/less defects has a unique advantage in the effective separation of electron holes.Graphite carbonitride (g-C3N4) due to its unique intrinsic two-dimensional (2D) crystal structure,visible light response (band gap～2.7eV) and excellent chemical properties stability,has a wide range of applications in the field of photocatalysis.Due to their unique photocatalytic properties,the research on the composite photocatalysts was increasing.The preparation method of MOFs/g-C3N4 composite catalyst and its application in photocatalysis were introduced,and the photocatalytic reaction mechanism was analyzed.Prospects for the application of MOFs/g-C3N4 composite catalysts in environmental pollution control were looked.
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基金资助
重庆市高校优秀成果转化资助项目(KJZH17122)
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