Even though the photocatalytic processes are a good technology for treatment of toxic organic pollutants, the majority of current photocatalysts cannot utilize sunlight sufficiently to realize the decomposition of these organic pollutants. As stated by various researchers, metal oxide nanoparticles have a significant photocatalytic performance under visible light source. Among various chemical and physical methods used to synthesize nanostructured silver oxide, green synthetic route is a cheaper and environmental friendly method. To confirm the optimum production of Ag2O NPs, effect of pH, extract concentration, metal ion concentration, and contact time were optimized. The structure, morphology, crystallinity, size, purity, elemental composition, and optical properties of obtained Ag2O NPs were characterized by different techniques, such as scanning electron microscopy (SEM), transmission electron microscope (HRTEM), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), and UV-visible spectrophotometer accordingly as revealed by our literature review. The photocatalytic performance of the synthesized nanocrystalline Ag2O by photocatalytic degradation of organic dyes under visible light irradiation has been discussed thoroughly in this review. Many past studies revealed that organic dyes and pollutants are decomposed completely by green synthesized Ag2O NPs under irradiation of visible light.

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用于光催化应用的 Ag2O 纳米颗粒的合成和表征综述

尽管光催化过程是处理有毒有机污染物的良好技术，但目前大多数光催化剂不能充分利用阳光来实现这些有机污染物的分解。正如各种研究人员所说，金属氧化物纳米粒子在可见光源下具有显着的光催化性能。在用于合成纳米结构氧化银的各种化学和物理方法中，绿色合成路线是一种更便宜且环境友好的方法。为了确定 Ag2O NPs 的最佳生产，优化了 pH、提取物浓度、金属离子浓度和接触时间的影响。获得的 Ag2O NPs 的结构、形态、结晶度、尺寸、纯度、元素组成和光学性质通过不同的技术进行表征，如扫描电子显微镜（SEM）、透射电子显微镜（HRTEM）、X射线衍射（XRD）、能量色散谱（EDS）、X射线光电子能谱（XPS）、傅里叶变换红外光谱（FT-IR）、和相应的紫外可见分光光度计，正如我们的文献综述所揭示的那样。本综述深入讨论了在可见光照射下通过光催化降解有机染料合成的纳米晶 Ag2O 的光催化性能。许多过去的研究表明，有机染料和污染物在可见光照射下被绿色合成的 Ag2O NPs 完全分解。正如我们的文献综述所揭示的那样，傅里叶变换红外光谱（FT-IR）和紫外可见分光光度计相应地。本综述深入讨论了在可见光照射下通过光催化降解有机染料合成的纳米晶 Ag2O 的光催化性能。许多过去的研究表明，有机染料和污染物在可见光照射下被绿色合成的 Ag2O NPs 完全分解。正如我们的文献综述所揭示的那样，傅里叶变换红外光谱（FT-IR）和紫外可见分光光度计相应地。本综述深入讨论了在可见光照射下通过光催化降解有机染料合成的纳米晶 Ag2O 的光催化性能。许多过去的研究表明，有机染料和污染物在可见光照射下被绿色合成的 Ag2O NPs 完全分解。