Preparation of ZnO particles by precipitation transformation method and its inherent formation mechanisms

Preparation of ZnO particles by precipitation transformation method and its inherent formation mechanisms
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沉淀转化法制备ZnO颗粒及其内在形成机制

DOI:
10.1016/s0927-7757(03)00383-2
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发表时间:
2003-09
期刊:
Colloid and Surf. A
影响因子:
--
通讯作者:
Xingguo Li
Xingguo Li
中科院分区:
其他
文献类型:
--
作者:
Shicheng Zhang;Xingguo Li

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通过在低温(室温至70°C)下由Zn 5(CO 3)2(OH)6在水溶液中实施沉淀转化法来制备ZnO颗粒。用pH计和X射线衍射仪(XRD)对相变过程进行了表征。随着温度的升高、NaOH溶液浓度和用量的增加,ZnO相的形成变得容易,反之则需要形成ε-Zn(OH)2相。研究了ZnO颗粒的形貌及其形成机理。通过控制反应条件和后处理,可以得到纳米氧化锌。
The ZnO particles were prepared by implementing the precipitation transformation method from Zn5(CO3)2(OH)6in an aqueous solution at a low temperature (room temperature to 70°C). The phase transformation process was detected by using a pH-meter and an X-ray diffraction (XRD). With an increase of temperature and concentration and quantity of NaOH solution, the ZnO phase became easier to form, otherwise, the ε-Zn(OH)2phase would need to be formed. The morphology of ZnO particles and its formation mechanism were investigated. Through controlling the reaction conditions and the post-treatment, the ZnO nanoparticles can be obtained.
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