沈阳化工大学学报 ›› 2024, Vol. 38 ›› Issue (2): 97-102.
• 化学与化学工程 • 下一篇
g-C3N4/Cu5FeS4/Au三元光催化剂的设计、合成及催化性质的研究
(1.沈阳化工大学 理学院， 辽宁 沈阳 110142;2.沈阳化工大学 材料科学与工程学院， 辽宁 沈阳 110142)
The Design and Synthesis of g-C3N4/Cu5FeS4/Au Ternary Heterjunction Photocatalyst and Study on Properties
（1. College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China；2.Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China）
摘要： 采用简单的方法成功合成了三元g-C3N4/Cu5FeS4/Au异质结光催化剂，系统研究了Au沉积和Cu5FeS4耦合对g-C3N4性能的影响，将三乙醇胺作为牺牲剂并通过在可见光照射下的光解水反应评估其光催化活性.实验结果表明：g-C3N4/0.75%Cu5FeS4/0.75% Au纳米复合材料具有最高的析氢活性(119.52μmol·h-1·g-1)，分别是纯g-C3N4(10.44μmol·h-1·g-1)的11.45倍和g-C3N4/Cu5FeS4(27.32 μmol·h-1·g-1)二元结构的4.37倍.光催化活性的提高可归因于以Cu5FeS4为电子桥的组件形成的典型II型异质结可以提高电荷分离效率，并且三个组件间牢固界面的接触可以提供更多的电荷迁移途径，以实现跨界面的有效电荷转移.
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| [1] | 礼峥, 徐宝彤, 邱永堃, 丁茯, 孙亚光, 高雨. g-C3N4/CeO2/Ag三元纳米光催化剂的制备及其光催化性能研究 [J]. 沈阳化工大学学报, 2024, 38(2): 103-109. |
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