负载纳米氧化锌棉织物的制备及其光催化性能的研究

摘要

通过溶胶-凝胶法制备了一种负载氧化锌纳米颗粒的棉织物.经扫描电镜(SEM)观察了表面形貌,能谱(EDS)研究了表面元素状态,X射线衍射(XRD)研究了结晶形态,热失重测试(TG)分析了热降解过程;结果表明生成了氧化锌颗粒,并紧密吸附在棉织物表面.用紫外-可见光光谱(UV-Vis)分析了光催化分解过程并对其可重复性进行了探讨;结果表明,这种负载纳米氧化锌的织物对亚甲基蓝(模型化合物)具有长期稳定的光降解性能.%Nano ZnO-loaded cotton fabric was prepared by sol-gel method. The morphology of the cot-ton fabric was observed by scanning electron microscope (SEM), and energy-dispersive spectroscopy (EDS) was used to measure the surface element state. The crystal structure was investigated by X-ray diffraction (XRD), and the thermal decomposition process was studied by the thermal gravity analysis (TG). The results showed that the ZnO particles were prepared and attatched to the surface of cotton fabric. Moreover, the UV-Vis spectrum was used to analyze the photocatalytic decomposition procedure and its repeatability. The re-sults indicated that the ZnO-loaded sample presented durable photocatalytic degradation property against the methylene blue (model compound).