摘要
采用碳酸氢铵法由粗氧化锌制备纳米活性氧化锌。研究了用碳酸氢铵法由粗氧化锌制备活性氧化锌的热力学、中间体碱式碳酸锌的主要组成和碱式碳酸锌热分解的温度对形貌的影响;考察了中间体碱式碳酸锌的热分解温度和时间对纳米活性氧化锌的纯度、白度、比表面积和表观密度的影响。碱式碳酸锌焙解生成纳米活性氧化锌适宜的温度和时间分别为600℃和1h时,产品中氧化锌的质量分数为97.6%,粒度<100nm,比表面积50m2/g,表观密度0.21g/cm3。
The preparation of nanometer active zinc oxide from crude zinc oxide by ammonium bicarbonate method was introduced.The thermodynamics of the process,the main components of intermedium basic zinc carbonate and the influence of the temperature and time of thermal decomposition of basic zinc carbonate on the purity,whiteness,specific area and apparent density of the nanometer active zinc oxide were investigated.The optimum temperature and time of thermal decomposition of basic zinc carbonate are 600 ℃ and 1 h respectively.The zinc oxide content of the product is 97.6%,size<(100 nm,)specific area 50 m^2/g and apparent density 0.21 g/cm^3.
出处
《无机盐工业》
CAS
2004年第4期20-23,共4页
Inorganic Chemicals Industry
基金
国家自然科学基金(59804004)
国家杰出青年科学基金(59725408)资助项目。
关键词
纳米活性氧化锌
碳酸氢铵
碱式碳酸锌
热分解
nanometer active zinc oxide
ammonium bicarbonate
basic zinc carbonate
thermal decomposition
