【摘要】 石墨相氮化碳（g-C₃N₄）由于其具有理想的微观结构和化学功能，在环境处理应用中的潜力引起了人们的广泛兴趣。本研究以多金属氧酸盐（NH₄）₄[Co（II）Mo₆O₂₄H₆]（CoMo₆）为前驱体，通过一种简单的一步热聚合法制备了一系列Co和Mo共掺杂的多孔石墨相氮化碳（Co/Mo-CN）。CoMo₆不仅起到氧化刻蚀作用制造多孔结构，还作为双金属掺杂源。与原始石墨相氮化碳（P-CN）相比，具有比表面积大，暴露活性位点丰富，光吸收能力强，带隙窄，光生载流子分离速率快及更负的导带电位等优点。这些优点使Co/Mo-CN对多种阳离子染料的吸附能力和可见光下光催化还原Cr（Ⅵ）能力显著提高，为优化具有良好性能的石墨相氮化碳基材料开辟了一条新的途径。更多还原

【Abstract】 Graphitic carbon nitride（g-C₃N₄,denoted as CN） has gained significant attention for its potential applications in treating environmental pollutants due to its unique microstructure and chemical properties.In this study,porous CN co-doped with Co and Mo（Co/Mo-CN） was successfully synthesized using a convenient thermal polymerization method involving polyoxometalate precursor of（NH₄）₄ [Co（Ⅱ）Mo₆O₂₄H₆]（CoMo₆）.The single-source precursor of CoMo₆ was not only as a pore forming agent by oxidation etching,but also as a bimetallic doping source.Compared with pristine CN（P-CN）,Co/Mo-CN possessed more advantages,such as high specific surface area,plentiful exposed active sites,extending the light absorption capability,rapid separation of photogenerated charge carriers, narrowed bandgap and more negative conduction band potential.As expected,the Co/Mo-CN exhibited a significant enhancement of adsorption ability for cationic dyes and photoreduction Cr（Ⅵ） under visible light irradiation compared to P-CN.This research opened a new pathway designing multifunctional CN-based materials.更多还原