Abstract

The present work reports the application of poly (vinyl alcohol) (PVA) supported sol-gel-self-propagation route for the synthesis of ZnO-based binary metal oxides nanocomposites (BMONCs). The DRS–UV–Visible spectroscopic method confirmed the less-reflectance properties of PVA-BMONCs compared to ZnO. The crystallinity of PVA-BMONCs was found to be lesser than that of ZnO as confirmed by XRD analysis. The predictable metal-oxygen bond was confirmed by FTIR spectrophotometry. The porous morphology of PVA-BMONCs was characterized by BET technique and SEM microscopy. The TEM-HRTEM microscopic images confirmed the nano-size and actuality of the composites. The synthesized PVA-BMONCs exhibited significant antibacterial action on both Gram-positive and Gram-negative bacteria. Compared to ZnO, PVA-BMONCs are showed enhanced antibacterial activity. The increased surface area provides superior contact with the surface of bacteria resulting higher zone of inhibition of 24 mm on E. coli bacteria. The CV-EIS techniques have approved the superior electrochemical activity for ZnO/PVA NCs.

摘要

目前的工作报告了聚乙烯醇 (PVA) 支持的溶胶-凝胶-自蔓延路线在合成 ZnO 基二元金属氧化物纳米复合材料 (BMONC) 中的应用。与 ZnO 相比，DRS-UV-Visible 光谱方法证实了 PVA-BMONCs 的反射率更低。XRD 分析证实，PVA-BMONCs 的结晶度低于 ZnO。FTIR 分光光度法证实了可预测的金属-氧键。PVA-BMONCs 的多孔形态通过 BET 技术和 SEM 显微镜表征。TEM-HRTEM 显微图像证实了复合材料的纳米尺寸和真实性。合成的 PVA-BMONCs 对革兰氏阳性菌和革兰氏阴性菌均表现出显着的抗菌作用。与 ZnO 相比，PVA-BMONCs 显示出增强的抗菌活性。大肠杆菌。CV-EIS 技术已证明 ZnO/PVA NCs 具有优异的电化学活性。