材料科学
光催化
光降解
三元运算
碳纳米管
异质结
纳米复合材料
化学工程
可见光谱
纳米技术
光电子学
化学
催化作用
有机化学
计算机科学
工程类
程序设计语言
作者
Zhen Mou,Jian Xu,Tingting Meng,Xinping Wang,Runxin Gao,Junjie Guo,Shuai Gu,Zhiping Zhou,Meng Wang,Kejie Zhang
标识
DOI:10.1016/j.jallcom.2023.171699
摘要
The ternary nanocomposites of CNTs/CdS/MoS2 was synthesized by a simple two-step hydrothermal method and characterized accordingly. In situ growth of CdS on the surface of CNTs decreased the size of CdS particles and increased its dispersibility. Moreover, CdS took advantage of the good conductivity of CNTs to accelerate the conduction of photogenerated holes and reduced the recombination efficiency of charge carriers. MoS2 grew in situ on the surface of CdS, and the interface between them formed a close contact heterostructure. The built-in electric field formed at the interface between the two forced the photogenerated electrons of CdS and the holes of MoS2 to recombine here. This property not only changed the path of photogenerated electrons and holes, but also made the surface of MoS2 becoming the active center of reduction reaction. The hybrid structure of CNTs/CdS/MoS2 in-situ composite significantly improved the photocatalytic performance. When CNTs/CdS/MoS2 was used as photocatalyst, the degradation rate of tetracycline was 96.7% under 100 minutes of visible irradiation, and the data was still above 95% after 5 cycles indicate. This indicated that the ternary complex has good photocatalytic performance and stability. The successful preparation of CNTs/CdS/MoS2 provides an economically feasible approach for the degradation of tetracycline.
科研通智能强力驱动
Strongly Powered by AbleSci AI