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来源：百度知道 编辑：UC知道 时间：2024/05/28 02:25:13
XRD analyses were performed on the samples before autoclaving, after
autoclaving and after sintering of TiO2: All the samples exhibited only peaks
corresponded to anatase phase (Fig. 1). The particle size of TiO2 crystallites
determined from the XRD peak increased as the autoclaving temperature increased.
The average particle size of the crystallites was controlled from 15 to 25 nm by
changing the autoclaving temperature from 190C to 240C (Table 1). The SEM
image revealed that these TiO2 nanocrystalline particles had very narrow particle size
distribution (Fig. 2). Thus, pure anatase nanocrystalline particles with narrow size
distribution were prepared by hydrolysis of TiCl4 aqueous solution followed by
peptization of titanium sulfate and hydrothermal treatment
autoclaving and after sintering of TiO2: All the samples exhibited only peaks
corresponded to anatase phase (Fig. 1). The particle size of TiO2 crystallites
determined from the XRD peak increased as the autoclaving temperature increased.
The average particle size of the crystallites was controlled from 15 to 25 nm by
changing the autoclaving temperature from 190C to 240C (Table 1). The SEM
image revealed that these TiO2 nanocrystalline particles had very narrow particle size
distribution (Fig. 2). Thus, pure anatase nanocrystalline particles with narrow size
distribution were prepared by hydrolysis of TiCl4 aqueous solution followed by
peptization of titanium sulfate and hydrothermal treatment
X射线衍射分析，对样品的前压后，
消毒炉及烧结后的二氧化钛：全部样本的参展只能峰
对应锐钛矿相（图一） 。粒子尺寸的二氧化钛晶体
决心从X射线衍射峰随着蒸汽温度上升。
平均粒度的晶粒控制，从15日至25牛顿米，由
改变蒸汽温度从190 C至240 C （下表1 ） 。扫描电镜
图像显示，这些纳米二氧化钛粒子有很窄的粒子尺寸
分布（图2 ） 。因此，纯锐钛型纳米粒子与缩小规模
分布制备水解TiCl4的水溶液之后
胶溶的硫酸钛和水热处理