CZTS/g-C_(3)N_(4) Ⅰ型异质结中可见光驱动催化活性的提高  

Improved Visible Light‑Driven Catalytic Activity in Type-Ⅰ Heterojunction of CZTS/g-C_(3)N_(4)

作　　者：李玉芳[1] 侯张晨 刘劲松[1] 施政[1] 沈鸿烈[1] LI Yufang;HOU Zhangchen;LIU Jinsong;SHI Zheng;SHEN Honglie(College of Materials Science and Technology,Jiangsu Key Laboratory of Materials and Technology for Energy Conversion,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,P.R.China)

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏省能源转换材料与技术重点实验室,南京211106

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2023年第3期293-306,共14页南京航空航天大学学报（英文版）

摘　　要：为了提高Cu_(2)ZnSnS_(4)(CZTS)光催化降解罗丹明B(RhB)的速率,本文采用水热法成功制备了CZTS/g-C_(3)N_(4)复合结构的Ⅰ型异质结并首次将CZTS/g-C_(3)N_(4)应用于光催化降解有色染料RhB。结果表明,g-C_(3)N_(4)附着在花状CZTS表面,两者形成Ⅰ型异质结。CZTS作为g-C_(3)N_(4)的电子陷阱,提高了载流子的分离效率。光催化降解RhB的结果表明,CZTS/g-C_(3)N_(4)复合结构可以提高RhB的光催化降解效果。RhB的最佳光催化效率在60min内达到98.63%。In order to increase the rate of Cu_(2)ZnSnS_(4)(CZTS)photocatalytic degradation of Rhodamine B(RhB),type-Ⅰ heterojunction of the CZTS/g-C_(3)N_(4) composite structure was successfully prepared by a hydrothermal method in this work.CZTS/g-C_(3)N_(4) is applied in photocatalytic degradation of the colored dye RhB.The results showed that g-C_(3)N_(4) was attached to the surface of flower-like CZTS,and the two formed a type-Ⅰ heterojunction.CZTS acted as an electron trap for g-C_(3)N_(4),which improved the separation efficiency of carriers.The results of photocatalytic degradation of RhB showed that CZTS/g-C_(3)N_(4) composite structure could improve the photocatalytic degradation effect of RhB.The best photocatalytic efficiency of RhB was 98.63% within 60 min.

关 键 词：光催化 热流体 CZTS/g-C_(3)N_(4) 光生载流子 异质结 

分 类 号：TN925[电子电信—通信与信息系统]