Rehman Fazal Ur, Mahmood Rashid, Ali Manel Ben, Hedfi Amor, Almalki Mohammed, Mezni Amine, Rehman Wajid, Haq Sirajul, Afsar Humma
Department of Chemistry, University of Azad Jammu and Kashmir, Muzffarabad 13100, Pakistan.
Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
Materials (Basel). 2021 Oct 14;14(20):6085. doi: 10.3390/ma14206085.
() leaf extract was used as a reducing and stabilizing agent for the synthesis of silver-copper oxide nanocomposite (Ag-CuO NC). Scanning and transmission electron microscopies (SEM and TEM) were used to examine the structural morphology, and the average particle size was determined to be 47.65 nm. The phase confirmation and crystalline structure were examined through the X-ray diffraction (XRD) technique, where cubic and monoclinic geometries were assigned to Ag and CuO. The energy dispersive X-ray (EDX), Fourier transform infrared (FTIR) and ultra-violet and visible (UV-Visible) spectroscopies were operated to analyse the elemental composition, functional groups and light absorption phenomena of the Ag-CuO NC. Under the full light spectrum, the photodegradation of Rhodamine 6G was recorded, and 99.42 percent of the dye degraded in 80 min. The Agar well diffusion method was followed to perform antibacterial activity against selected pathogens, and the activity was found to increase with increasing concentration of Ag-CuO NC. The ABTS free radical scavenging activity suggests that the activity of Ag-CuO NC is higher than ascorbic acid.
()叶提取物被用作合成银 - 氧化铜纳米复合材料(Ag - CuO NC)的还原剂和稳定剂。使用扫描电子显微镜和透射电子显微镜(SEM和TEM)检查结构形态,确定平均粒径为47.65 nm。通过X射线衍射(XRD)技术检查相确认和晶体结构,其中立方和单斜几何结构分别归属于Ag和CuO。操作能量色散X射线(EDX)、傅里叶变换红外(FTIR)和紫外可见(UV - Vis)光谱来分析Ag - CuO NC的元素组成、官能团和光吸收现象。在全光谱下记录罗丹明6G的光降解情况,80分钟内99.42%的染料发生降解。采用琼脂孔扩散法对选定病原体进行抗菌活性测试,发现活性随Ag - CuO NC浓度的增加而增强。ABTS自由基清除活性表明Ag - CuO NC的活性高于抗坏血酸。