Rapid and Facile Synthesis of Monodisperse α-Bi_2O_3 Nanowires by Solution Precipitation Method

摘要

Monodisperse α-Bi_2O_3 nanowires with the diameter of 50-100 nm and the length-diameter ratio of 60-100, were synthesized successfully by solution precipitation method, an efficient and convenient route, with the assistance of oleic acid. X-ray diffraction (XRD) and field-emission scanning electron microscope (FE-SEM) were employed to characterize the obtained products. By analyzing the influential factors, it was found that the size and morphology of α-Bi_2O_3 nanowires were affected mainly by temperature, reagent concentration, drip feed speed, and reaction time. It was found that oleic acid played a crucial role in the formation process of nanowires. And the optimum synthesis conditions were identified to prepare the final products to meet the needs of application.