In the recent years, plant and microbial extract based nanoparticles (NPs) have become a sophisticated technology serving as an alternative strategy for the purpose of developing materials functionalized by structural diversity and enhanced energy efficiencies. Cobalt oxide nanoparticles (GCoO-NPs) have wide applications in several sectors due to their high resistance to corrosion as well as oxidation, ecofriendly nature, cost effectiveness and nontoxic potential. Plant based particles are credible alternatives as they reduce the burden of complicated and laborious protocols of physiochemical reliance. In this study, GCoO-NPs were synthesized using the grape Jumbo Muscadine (Vitis rotundifolia) using co-precipitation. The synthesized GCoO-NPs were characterized by UV–Vis spectrophotometer, Fourier transform infrared spectroscopy (FTIR), Powder X-ray diffraction (PXRD) and Scanning electron microscopy (SEM). The photocatalytic activity of the GCoO-NPs was estimated by the degradation of Acid Blue-74 (AB-74) dye and the complete degradation of 98% was accomplished at the reaction time of 150 min at pH 10 and 60 mg/100 mL concentration. The outcomes of this study indicated the excellent performance of the GCoO-NPs on par with some of the earlier findings and this can be an appealing aspirant of extreme potential to be employed as a catalyst alternative to the conventional wastewater treatment methods.

近年来，基于植物和微生物提取物的纳米颗粒（NPs）已成为一项先进的技术，可作为替代策略，用于开发通过结构多样性和提高能效功能化的材料。氧化钴纳米颗粒（GCoO-NPs）由于具有很高的耐腐蚀性和抗氧化性，生态友好性，成本效益和无毒潜力，因此在多个领域得到了广泛的应用。基于植物的颗粒是可靠的替代品，因为它们减轻了复杂而费力的理化依赖方案的负担。在这项研究中，GCoO-NPs是用葡萄巨型麝香葡萄碱（Vitis rotundifolia）合成的）使用共沉淀。通过紫外可见分光光度计，傅立叶变换红外光谱（FTIR），粉末X射线衍射（PXRD）和扫描电子显微镜（SEM）对合成的GCoO-NPs进行了表征。通过酸性蓝74（AB-74）染料的降解来估计GCoO-NPs的光催化活性，在pH 10和60 mg / 100 mL的浓度下，在150分钟的反应时间完成98％的完全降解。 。这项研究的结果表明，GCoO-NPs的出色表现与一些早期发现相提并论，这可能是吸引人的极高潜力，可被用作替代常规废水处理方法的催化剂。