摘要
在75℃下采用均相沉淀法制备了ZnO微球,并运用XRD、SEM等方法表征了制得的样品,考察了反应时间和磷钨酸浓度对ZnO形貌的影响,讨论了纳米氧化锌的生长机理。结果表明:乙酸锌浓度为0.025 mol/L,三乙醇胺(TEA)浓度为0.100 mol/L,催化剂HPW浓度为1.00×10-3 mol/L条件下,反应2 h制得的ZnO微球粒径均一,分散性良好。
Nano/micron-sized ZnO spheres were fabricated by homogeneous co-precipitation at 75 ℃.The prepared spheres were characterized by X-ray diffraction(XRD)and scanning electron microscope(SEM).The effect of reaction time and HWP(H3PW12O40∶HPW)concentration was investigated.The result showed that the ZnO spheres after 3h reaction had uniform sizes and dispersed well when the concentration of Zinc acetate dihydrate,TEA and HPW were 0.025 mol/L,0.100 mol/L and 1.00×10-3 mol/L respectively.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2011年第3期602-606,共5页
Chemical Industry and Engineering Progress
基金
广东省工业攻关项目(2005B10301051)