溶剂热法制备银纳米线及其光催化性能研究
Preparation of Silver Nanowires by a Solvothermal Method and Their Photocatalytic Performance
DOI: 10.12677/MS.2019.98098, PDF,  被引量    科研立项经费支持
作者: 高 枫, 吴 毅, 尹佳瑄, 杨 茜, 李 庆*：西南大学材料与能源学院，重庆
关键词: 银纳米线；溶剂热法；生长机理；光催化性能；Silver Nanowires； Solvothermal Method； Growth Mechanism； Photocatalytic Performance
摘要: 本文以乙二醇和去离子水作为溶剂，同时乙二醇作为还原剂，聚乙烯吡咯烷酮(PVP)为表面活性剂，NaCl为控制剂，通过溶剂热法制备出了银纳米线。分别采用粉末X射线衍射仪(XRD)、扫描电子显微镜(SEM)、能量色散X射线光谱仪(EDX)、紫外–可见分光光度计(UV-Vis)等技术对产物的结构、形貌及光学性能进行了表征。通过对实验条件的探索，发现NaCl以及PVP的用量对于产物的形貌有着显著的影响。通过分析反应过程中不同反应时间下产物形貌的演变，提出了一种银纳米线的生长机理。此外，所制得的银纳米线被用于可见光下降解亚甲基蓝(MB)，结果表明该银纳米线具有光催化性能。
Abstract: In this paper, silver nanowires were prepared via a solvothermal method by using ethylene glycol and distilled water as the solvent, polyvinylpyrrolidone (PVP) as the surfactant and NaCl as the control agent, while ethylene glycol also worked as the reducing agent. The structure, morphology and optical property of the product were investigated by powder X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and UV-Vis spectrophotometer techniques. It was found that the amount of NaCl and PVP had a significant in-fluence on the morphology of the products. The growth mechanism of the silver nanowires was proposed by analyzing the evolution of the morphology of the product under different reaction time. In addition, the as-prepared silver nanowires were used to degrade methylene blue (MB) under visible light. Such silver nanowires exhibited photocatalytic properties.
文章引用：高枫, 吴毅, 尹佳瑄, 杨茜, 李庆. 溶剂热法制备银纳米线及其光催化性能研究[J]. 材料科学, 2019, 9(8): 786-794. https://doi.org/10.12677/MS.2019.98098

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