【摘要】 以四氯化钛为原料,采用溶胶-凝胶法来制备纳米二氧化钛。经X-射线衍射(XRD),透身电子显微镜(TEM)分析,得出在相同的干燥方式及不同的热处理温度下,溶胶-凝胶法制备出的二氧化钛粉体为纳米级的二氧化钛粉体。随着热处理温度的增加,溶胶-凝胶法制得的二氧化钛粉体晶型明显地从非晶型过渡到锐钛矿和金红石的混合晶型,再过渡到金红石型。更多还原

【Abstract】 Nanometer titanium dioxide particles wre prepared by sol - gel from TiCl4. By X- ray diffraction (XRD) and telescope electron microscopy (TEM) determination method, it was determined the particles were nanoparticles. When heat treated temperature was changed from room temperature to 750℃, the nanoprticles was changed from noncrystal to mixed crystal of rutile and anatase phase,at the end, to rutile.更多还原