摘要
探究了两步化学沉淀法制备纳米氧化锌工艺,通过热力学计算及实验验证,明确了两步法中碱式碳酸锌前驱体组成形式为Zn_(5)(CO_(3))_(2)(OH)_(6),且在初始锌浓度0.1~0.3 mol/L,锌碳比1:1~1:3范围内,其不发生改变,但随锌碳比减小,前驱体形貌先由无规则向规则化再到无规则转变。所得氧化锌粒径及团聚行为受前驱体形貌影响显著。
This study explores the preparation process of nano zinc oxide using a two-step chemical precipitation method.Through thermodynamic calculations and experimental verification,it has been clarified that the precursor form of basic zinc carbonate in the two-step method is Zn_(5)(CO_(3))_(2)(OH)_(6),and within the initial zinc concentration range of 0.1 mol/L to 0.3 mol/L and the zinc to carbon ratio of 1:1 to 1:3,this form remains unchanged.However,as the zinc to carbon ratio decreases,the morphology of the precursor undergoes a transformation from irregular to regular and then back to irregular.The particle size and aggregation behavior of zinc oxide are significantly influenced by the morphology of the precursor.
作者
来辉斌
宫源
杨卓
王兰英
Lai Huibin;Gong Yuan;Yang Zhuo;Wang Lanying(School of Petrochemical Technology,Lanzhou University of Technology,Gansu,730050;Gansu Runyuan Environmental Resources Technology Co.,Ltd.,Gansu,735100)
出处
《当代化工研究》
2025年第3期191-193,共3页
Modern Chemical Research
基金
2023年嘉峪关市重大专项计划项目“脱硫石膏间接矿化烟气CO_(2)制备纳米CaCO_(3)技术研究”(项目编号:23-02)
2022年中央引导地方科技发展资金项目“气泡液膜法制备纳米氧化锌技术成果产业化”(项目编号:22ZY1QA011)。
关键词
化学沉淀法
碱式碳酸锌
纳米氧化锌
锌碳比
chemical precipitation method
basic zinc carbonate
nano zinc oxide
zinc-to-carbonate molar ratio
