Arun Velumani, Priyadharsan Arumugam, Sivakumar Santhanam, Ranjith Rajendran, Handayani Murni, Redhyka Grace Gita, Wadaan Mohammad Ahmad, Mythili Raja, Rahmayanti Yosephin Dewiani
Research Center for Nanotechnology System, National Research and Innovation Agency (BRIN), Tangerang Selatan, Banten, Indonesia.
Department of Chemistry, E.R.K Arts and Science College, Erumiyampatti, Dharmapuri, Tamil Nadu, India.
Luminescence. 2024 Dec;39(12):e70053. doi: 10.1002/bio.70053.
In this study, ZnO, CdS, ZnO/CdS, and ZnO/CdS/Co nanostructures were successfully synthesized using a simple chemical precipitation method. The formation of these nanostructures was confirmed through x-ray diffraction (XRD), but their morphological properties were analyzed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Their optical properties were investigated using UV-visible diffuse reflectance spectroscopy (UV-DRS) and photoluminescence spectroscopy (PL). The photocatalytic activity of these materials was tested for the degradation of Reactive Blue 160 (RB 160) under visible light. It was observed that ZnO/CdS nanocomposites exhibited superior photocatalytic performance compared to pure ZnO. Furthermore, the inclusion of cobalt (Co) in the ZnO/CdS nanocomposites significantly enhanced this activity, likely due to improved visible light absorption. These findings suggest that ZnO/CdS/Co nanocomposites are promising candidates for efficient photocatalytic applications, particularly in environmental remediation under visible light.
在本研究中，采用简单的化学沉淀法成功合成了氧化锌（ZnO）、硫化镉（CdS）、氧化锌/硫化镉（ZnO/CdS）和氧化锌/硫化镉/钴（ZnO/CdS/Co）纳米结构。通过X射线衍射（XRD）确认了这些纳米结构的形成，但使用扫描电子显微镜（SEM）和透射电子显微镜（TEM）分析了它们的形态特性。使用紫外可见漫反射光谱（UV-DRS）和光致发光光谱（PL）研究了它们的光学特性。测试了这些材料在可见光下对活性蓝160（RB 160）降解的光催化活性。观察到，与纯氧化锌相比，氧化锌/硫化镉纳米复合材料表现出优异的光催化性能。此外，在氧化锌/硫化镉纳米复合材料中加入钴（Co）显著增强了这种活性，这可能是由于可见光吸收的改善。这些发现表明，氧化锌/硫化镉/钴纳米复合材料是高效光催化应用的有前途的候选材料，特别是在可见光下的环境修复方面。
