摘要
超声辐射Fe(NO3)3.9H2O、不同锌盐和脲的混合水溶液得到前驱体,再经过高温焙烧得到纳米ZnFe2O4粉末。得到的纳米ZnFe2O4粉末用X射线衍射(XRD),傅立叶转换红外光谱(FT-IR)表征得到确认。系统研究了超声波化学法制备纳米铁酸锌粉末工艺中不同锌盐、超声波辐射时间、焙烧温度和焙烧时间等影响因素,结果表明:Fe(NO3)3.9H2O与Zn(NO3)2.6H2O为原料,超声波辐射为4h,焙烧温度为950℃,焙烧时间为14h可制备结晶良好、分散性好、粒度小于100nm的尖晶石型铁酸锌粉末。
The precusor was prepared by sonicating an aqueous solution of Fe(NO_3)_3·9H_2O,zinc salt,and urea firstly.Then nanosized ZnFe_2O_4 particles were yielded by heating at high temperature.The nanosized zinc ferrite particles have been characterized by powder X-ray diffraction and FT-IR.The influence factors of nanosized ZnFe_2O_4 powders spine prepared by a sonochemical method were studied systematically.These influence factors are different zinc salt,ultrasonic irradiation time,calcining temperature and time.The nanosized ZnFe_2O_4 powder smaller than 100 nm in diameter,which is well-crystallized and well-degree of dispersion,can be obtained in the preparative condition at Fe(NO_3)_3·9H_2O reacted with Zn(NO_3)_2·6H_2O,ultrasonic irradiation time 4h,calcining temperature 950°C,calcining time 14h.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2007年第5期686-689,共4页
Journal of Materials Science and Engineering
基金
深圳大学科研启动基金资助项目(200521)
