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石墨增强TiO_2光催化性能研究

Release time:2023-10-19 Hits:

Key Words:TiO2;;石墨;;光催化;;增强
 Abstract:以钛酸四丁酯和层状石墨为原料,通过高能球磨以及溶胶凝胶法制备了TiO2/石墨复合样品。比较了紧密结合的TiO2/石墨复合样品与疏松结合的TiO2/石墨复合样品以及纯的TiO2样品的光催化性能,讨论了石墨对TiO2光催化性能的增强机理。结果表明,紧密结合的TiO2/石墨复合样品对甲基橙的光催化降解速率与疏松结合的TiO2/石墨复合样品以及纯的TiO2样品相比有显著增强,说明石墨在复合样品中起到了分离电子-空穴对的作用。
 Volume:v.45;No.250
 Issue:09
 Translation or Not:no

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