水热法制备钒酸铁的实验研究  

Experimental study on the hydrothermal synthesis of iron vanadate

作　　者：高蔷[1] 史培阳[1] 刘承军[1] 姜茂发[1] 

机构地区：[1]东北大学多金属共生矿生态化利用教育部重点实验室,沈阳110819

出　　处：《功能材料》2014年第22期22056-22059,共4页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2012CB626812);教育部新助项目(2012CB626812);教育部新世纪人才计划资助项目(NCET-11-0077);辽宁省自然科学基金资助项目(201102062);辽宁省科技攻关资助项目(2012221013)

摘　　要：采用水热合成法制备了结晶型FeVO4,借助XRD和SEM 等分析手段,考察了溶液pH 值和温度对沉淀产物的影响.结果表明,样品中n （V）/n（Fe）比值随着pH 值的升高而减小;水热法制备钒酸铁的最佳条件为pH 值1.5~4,温度为160℃,配比1∶1,静置时间120min,获得的钒酸铁样品中n（V）/n（Fe）比值为1,颗粒呈球形,粒径均匀,形貌比较规则.The study prepared crystalline FeVO4 by hydrothermal synthesis,X-ray diffraction analysis (XRD) and SEM were performed to investigate the effect of pH and reaction temperature on precipitates,investigates the influence of the solution pH value and reaction temperature on the precipitation.The results indicated:n(V)/n(Fe)ratio of samples decreased with the increase of pH value;the best conditions of hydrothermal syn-thesis obtained were reaction temperature at 160 ℃,pH 1.5-4,n(V)/n(Fe)=1,and the standing time of 120 min,under such condition,the V/Fe molar ratio of precipitates was 1 and the precipitates were regularly spher-ical in the shape with fine grain size.

关 键 词：水热合成法 钒酸铁 制备 

分 类 号：TF803.24[冶金工程—有色金属冶金]