Abstract

In this project, ZnTe quantum dots (QDs) on multi-walled carbon nanotubes (MWCNTs) by applying a facile and solvothermal method and characterized the various analysis material such as X-ray diffraction, dynamic light scattering, scanning electron microscopy, ultraviolet–visible spectroscopy. The outcomes indicated that the ZnTe QDs supported on MWCNTs in the catalyst. The ZnTe QDs on the MWCNTs, which that transport of generated electrons and leading to separation of photo-generated carriers in the coupled catalyst system. The photo-degradation performance of ZnTe–MWCNTs nanocomposites was studied by the decomposition of penicillin G (PENG) as a target compound. The results illustrated that the prepared ZnTe–MWCNTs nanocomposites exhibited higher photo-activity for the degradation of PENG than the pure ZnTe and MWCNTs under ultraviolet light irradiation. The optimal factors of PENG degradation were time: 60 min, and pH: 7.0, for the photo-degradation reaction medium.

摘要

在这个项目中，ZnTe 量子点 (QDs) 在多壁碳纳米管 (MWCNTs) 上通过应用一种简便的溶剂热方法表征了各种分析材料，如 X 射线衍射、动态光散射、扫描电子显微镜、紫外-可见光光谱学。结果表明，ZnTe QDs 负载在催化剂中的 MWCNTs 上。MWCNT 上的 ZnTe QD，它传输产生的电子并导致耦合催化剂体系中光生载流子的分离。通过分解青霉素 G (PENG) 作为目标化合物来研究 ZnTe-MWCNTs 纳米复合材料的光降解性能。结果表明，在紫外光照射下，制备的 ZnTe-MWCNTs 纳米复合材料对 PENG 的降解表现出比纯 ZnTe 和 MWCNTs 更高的光活性。PENG降解的最佳因素是光降解反应介质的时间：60分钟和pH：7.0。