g-C_(3)N_(4)/Cu_(5)FeS_(4)/RGO纳米复合光催化剂的制备及其光催化性能研究  

Preparation of g-C 3N 4/Cu 5FeS 4/RGO Nanocomposite Photocatalyst and Study on Its Photocatalytic Performance

作　　者：赵杉 礼峥 钱坤[1] 郑佳欣 明涛 张含烟 徐振和[1] 高雨 ZHAO Shan;LI Zheng;QIAN Kun;ZHENG Jiaxin;MING Tao;ZHANG Hanyan;XU Zhenhe;GAO Yu(College of Science,Shenyang University of Chemical Technology,Shenyang 110142,China;Materials Science and Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[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

出　　处：《沈阳化工大学学报》2024年第3期193-200,共8页Journal of Shenyang University of Chemical Technology

基　　金：国家自然科学基金(51402198,21671139)。

摘　　要：通过一种简便的方法合成了一系列的g-C_(3)N_(4)/Cu_(5)FeS_(4)/RGO纳米复合光催化剂,并通过XRD、TEM、UV-Vis等方法对其进行了表征.通过在可见光(λ>420 nm)照射下降解甲基橙溶液,研究了所制备的g-C_(3)N_(4)/Cu_(5)FeS_(4)/RGO纳米复合光催化剂的光催化性能.通过分析对比,发现g-C_(3)N_(4)/0.75%Cu_(5)FeS_(4)/0.50%RGO具有最佳的光催化降解活性,经可见光照射60 min后,降解了91%的甲基橙溶液.RGO作为助催化剂,能够加速电子的传输和转移,从而有效抑制电子-空穴对的复合,使g-C_(3)N_(4)/0.75%Cu_(5)FeS_(4)/0.50%RGO纳米复合光催化剂具有较高的光催化效率和更稳定的光催化活性.A series of g-C_(3)N_(4)/Cu_(5)FeS_(4)/RGO nanocomposite photocatalysts were synthesized by a simple method.The nanocomposite photocatalyst was characterized by XRD,TEM,UV-Vis and other methods.The photocatalytic performance of the prepared g-C_(3)N_(4)/Cu_(5)FeS_(4)/RGO nanocomposite photocatalyst was studied by degrading the methyl orange solution under visible light(λ>420 nm)irradiation.Through rigorous analysis and comparison,it was finally found that g-C_(3)N_(4)/0.75%Cu_(5)FeS_(4)/0.50%RGO had the best photocatalytic degradation activity.After 60 minutes of visible light irradiation,91%of the methyl orange solution was degraded.The results show that RGO as a cocatalyst can accelerate the transport and transfer of electrons,thereby effectively inhibiting the recombination of electron-hole pairs,resulting in g-C_(3)N_(4)/0.75%Cu_(5)FeS_(4)/0.50%RGO nanocomposite photocatalyst with relatively high photocatalytic efficiency and more stable photocatalytic activity.

关 键 词：光催化 石墨相氮化碳 Cu_(5)FeS_(4) RGO 

分 类 号：O611.61[理学—无机化学]