化学沉淀法制备纳米Cu_2O的工艺研究
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摘要
采用化学沉淀法在碱性条件下以硫酸铜为原料,水合肼为还原剂,通过控制反应物浓度、反应温度及反应时间等工艺条件制备纳米Cu2O。利用X射线衍射仪(XRD),扫描电子显微镜(SEM)来表征Cu2O的晶型结构和微观形貌,确定出最佳工艺条件。研究结果表明:在Na OH浓度为2 mol·L-1,反应温度为70℃,反应时间为4 h的试验条件下得到粒度均一、高纯度的正方体纳米Cu2O。
Nanostructured Cu2 O is prepared by controlling process conditions such as concentration of reactants, reaction temperature and reaction time, by using chemical precipitation with copper sulfate as raw material in alkaline condition and hydrazine hydrate as reducing agent. XRD and SEM are used to characterize the Cu2 O crystal structure and microstructure to get the best process conditions. The results show that: the experimental conditions to get uniform particle size and high purity cubes nanostructured Cu2 O are that Na OH concentration is 2 mol/L, the reaction temperature is 70 ℃ and reaction time is 4 h.
Nanostructured Cu2 O is prepared by controlling process conditions such as concentration of reactants, reaction temperature and reaction time, by using chemical precipitation with copper sulfate as raw material in alkaline condition and hydrazine hydrate as reducing agent. XRD and SEM are used to characterize the Cu2 O crystal structure and microstructure to get the best process conditions. The results show that: the experimental conditions to get uniform particle size and high purity cubes nanostructured Cu2 O are that Na OH concentration is 2 mol/L, the reaction temperature is 70 ℃ and reaction time is 4 h.
引文
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[4]邹晓兰,于艳卿,李超峰,等.纳米Cu2O/珍珠贝壳复合光催化材料的制备及其在有机染料处理中的应用[J].催化学报,2011(6):950-956.
[5]毕文团.氧化亚铜制备方法的研究进展[J].广州化工,2009(8):56-58.
[6]钱红梅,李燕,郝成伟.纳米Cu2O粉体的室温固相合成及其光催化性能[J].半导体光电,2008,29(6):913-915.
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