【摘要】 通过溶胶-凝胶法制备了银(Ag)@氧化锌(ZnO)纳米复合材料(Ag@ZnO),并采用激光粒度分布仪(DLS)、透射电子显微镜(TEM)、X-射线衍射仪(XRD)、扫描电子显微镜(SEM)、紫外-可见分光光度计(UV-Vis)和热重分析仪(TGA)等仪器设备对制得的样品的形貌、晶型、热稳定性等进行了测试。结果表明:Ag@ZnO纳米复合材料呈现出良好的复合结构,粒径约50nm,具有良好的热稳定性能。研究了Ag@ZnO纳米复合材料对亚甲基蓝的光催化性能和对大肠杆菌等生物细菌的抑制性能。Ag@ZnO纳米复合微粒对亚甲基蓝溶液具有良好的光催化降解性能,降解率达到85%;对大肠杆菌具有很好的抑制性能。更多还原

【Abstract】 Ag@ZnO nanocomposite was prepared by sol-gel method,as-obtained Ag@ZnO was charactered by laser particle size distribution(DLS),transmission electron microscopy(TEM),X-ray diffraction(XRD),scanning electron microscopy(SEM),ultraviolet-visible spectrophotometer(UV-Vis)and thermogravimetric analyzer(TGA)and so on in order to study its morphology,crystal type,and thermal stability.Finding showed that Ag@ZnO possessed perfect composite structure,thermal stability,and the size of 50 nm.The photocatalytic degradation performance of Ag@ZnO nanocomposite on methylene blue and its inhibition performance on escherichia coli and other biological bacteria were studied.The results showed that Ag@ZnO had photocatalytic degradation rate of 85% on methylene blue,Furthermore,Ag@ZnO also indicated antibacterial properties on escherichia coli.更多还原