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采用草酸有机诱导在水热条件下制备了形貌新颖的WO3粉体,使用XRD,SEM,BET等手段进行结构和形貌表征,并利用紫外-可见光谱仪(UV-Vis)及测色计对所制备的样品进行光致变色性能测试.结果表明,合成的WO3粉体仍为六方相,以草酸为诱导剂合成的粉体由大小及形状较为均匀的梭形组成,颗粒长在200~300nm之间,宽在30~50nm左右,长宽比为4~10之间,这种特殊的形貌改善了粉体对激发光源的吸收能力,从而提高了合成的WO3粉体的光致变色性能.
The morphology and morphology of WO3 powder were characterized by XRD, SEM and BET. The results of UV-Vis and colorimeter The prepared samples were tested for their photochromic properties.The results showed that the synthesized WO3 powder was still hexagonal phase and the powder synthesized by using oxalic acid as inducer consisted of fusiform shape with a uniform size and shape with particle length of 200-300 nm Between 30 ~ 50nm wide, aspect ratio of 4 to 10, this special morphology to improve the absorption of the excitation light source powder, thereby increasing the photochromic properties of the synthesized WO3 powder .