将5.8 g六水硝酸钇(Y(NO₃)₃•6H₂O)溶解在一定量的去离子水中，然后加入氨水(NH₃•H₂O)，并伴随着搅拌器搅拌，以获得胶体状沉淀。将所得胶体转移到30 mL内衬为聚四氟乙烯的高压釜中，调节pH值为9左右，保证体系填充率为66%左右，调节水热箱温度，进行控制水热反应温度为120 ℃，反应时间控制为6 h，将所得产物通过离心机分离后，用水以及无水乙醇反复洗涤5次，将得到的白色粉末在真空干燥箱中干燥12 h，放入真空管式高温炉中800 ℃煅烧4 h，即可得到纳米棒状氧化钇。采用RigakuD/maxx射线衍射仪(XRD)进行成分分析。XRD试验电压为40 KV，步长为8°/min，测试范围为10-90°。用SIRION200场发射扫描电子显微镜(FESEM)观察了其显微结构和粒径。

5.8 g of yttrium nitrate hexahydrate (Y(NO₃)₃•6H₂O) was dissolved in a certain amount of deionized water, and then ammonia (NH₃•H₂O) was added and stirred along with a stirrer to obtain a colloidal precipitate. The resulting colloid was transferred to a 30 mL autoclave lined with polytetrafluoroethylene, the pH was adjusted to about 9 to ensure that the filling rate of the system was about 66%, the temperature of the hydrothermal chamber was adjusted to carry out a controlled hydrothermal reaction temperature of 120 ℃, and the reaction time was controlled to 6 h. After the resulting product was separated by centrifugation, it was repeatedly washed with water as well as anhydrous ethanol for 5 times, and the resulting white powder was dried in a vacuum drying oven The white powder was dried in a vacuum drying oven for 12 h and calcined in a vacuum tube high temperature furnace at 800 ℃ for 4 h to obtain yttrium oxide nanorods. The compositional analysis was performed by RigakuD/maxx-ray diffractometer (XRD) with an XRD test voltage of 40 KV, step size of 8°/min and a test range of 10-90°. The microstructure and particle size were observed with a SIRION 200 field emission scanning electron microscope (FESEM).