NaTi_2(PO_4)_3纳米晶的室温固相合成及表征  

Synthesis of nanocrystalline NaTi_2(PO_4)_3 via solid-state reaction at room temperature and characterization

作　　者：苏鹏[1,2] 黄进文 吴文伟[1] 李海东[1] 吴学航[1] 廖森[1] 刘晨 樊艳金 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西冶金研究院,广西南宁530023

出　　处：《应用化工》2010年第9期1313-1315,1318,共4页Applied Chemical Industry

基　　金：广西自然科学基金项目(0832111;0991108);广西区科技厅攻关项目(桂科攻0895002-9)

摘　　要：以Ti(SO4)2和Na3PO4.12H2O为原料,在表面活性剂聚乙二醇(PEG)-400的存在下,进行固相反应,然后将混合物在60℃下保温4 h,接着用水洗去混合物中的可溶性无机盐并于100℃下干燥,即得纳米晶NaTi2(PO4)3的前驱体,将前驱体煅烧可得NaTi2(PO4)3纳米晶。前驱体和它的煅烧产物通过TG/DTA,IR,XRD和UV-vis表征。结果表明,500℃下煅烧2 h得到的产物为无定形结构,700℃下煅烧2 h得到具有高结晶度的斜方NaTi2-(PO4)3[空间群R-3c(167)],其平均一次粒径为47 nm。前驱体及煅烧产物均具有强的紫外吸收能力。The precursor of nanocrystalline NaTi2（PO4）3 was obtained by grinding Ti（SO4）2 and Na3PO4·12H2O in the presence of surfactant PEG-400 via a solid-state reaction at room temperature,maintaining the mixture at 60 ℃ for 4 h,washing the mixture with water to remove soluble inorganic salts,and drying at 100 ℃.The nanocrystalline NaTi2（PO4）3 was obtained by calcining the precursor.The precursor and its calcined products were characterized using TG/DTA,IR,XRD,and UV-vis.The data showed that the calcined product obtained at 500 ℃ for 2 h was a compound with amorphous structure.When the precursor was calcined at 700 ℃ for 2 h,highly crystallization NaTi2（PO4）3 with rhombic structure [space group R-3c（167）] was obtained with an average particle size of 47 nm.The precursor and its calcined products have strong ultraviolet ray absorption ability.

关 键 词：NaTi2(PO4)3 纳米晶 室温固相反应 表征 

分 类 号：TM912.9[电气工程—电力电子与电力传动]