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半导体光催化技术可以将太阳能转换为化学能,在染料降解方面具有广阔的应用前景。g-C3N4具有独特的电子能带结构、良好的热稳定性和化学稳定性,铁氧体尖晶石是一种新型的非均相光fenton试剂,两种材料展示染料降解方面的应用前景。然而比表面积较小、光生电子和空穴易复合等缺点严重限制其光催化活性。从光催化机理出发,介绍近年来国内外关于g-C3N4和铁氧体尖晶石方面的研究,简要叙述g-C3N4的结构和制备过程,以及g-C3N4复合铁氧体尖晶石后的光催化性能和磁控分离循环使用性能的变化,并对其未来的发展趋势进行展望。
Semiconductor photocatalytic technology can convert solar energy into chemical energy, which has broad application prospects in dye degradation. g-C3N4 has a unique electronic band structure, good thermal stability and chemical stability, ferrite spinel is a new heterogeneous optical fenton reagent, two materials show the application of dye degradation prospects. However, the specific surface area is small, easy to compound photoelectrons and holes and other shortcomings limit their photocatalytic activity. Based on the photocatalytic mechanism, the recent researches on g-C3N4 and ferrite spinel at home and abroad are introduced. The structure and preparation of g-C3N4, and the g-C3N4 composite ferrite spinel Photocatalytic performance and magnetron separation cycle performance changes, and its future development trend outlook.