Microwave synthesis method was adopted to prepare CdO nanoparticles using polyethylene glycol (PEG), NH₃ and NaOH as a co-reagent. A systematic investigation by XRD, SEM, TEM and EDS has been undertaken to evaluate the role of co-reagents on the microstructural and morphological study of the metal oxide nanostructure obtained. The pH of the solution, determined by the co-reagent used, was the main parameter addressing the morphology of CdO nanostructures obtained. By using NH₃ the growth of individual CdO particle is favored at the low pH of 9, likely due to low Cd supersaturation rate at this pH. On the other hand, the presence of NaOH as co-reagent increases pH to 11, enhancing Cd supersaturation and leading mainly to formation of nanowire aggregates. The optical and photoluminescence characteristics of the different CdO nanostructures synthesized have been also evaluated.

以聚乙二醇(PEG)、NH ₃和NaOH为共试剂，采用微波合成法制备CdO纳米颗粒。已通过 XRD、SEM、TEM 和 EDS 进行系统研究，以评估共试剂对所获得的金属氧化物纳米结构的微观结构和形态研究的作用。溶液的 pH 值由所用的共试剂决定，是解决获得的 CdO 纳米结构形态的主要参数。通过使用 NH ₃单个 CdO 颗粒的生长在 9 的低 pH 值下是有利的，这可能是由于在该 pH 值下 Cd 过饱和率低。另一方面，作为共试剂的 NaOH 的存在将 pH 值提高到 11，增强了 Cd 的过饱和度并主要导致纳米线聚集体的形成。还评估了合成的不同 CdO 纳米结构的光学和光致发光特性。