煅烧温度对二氧化钛光催化剂结构的影响  

Effects of calcination temperature on structure of titanium oxide photocatalyst

作　　者：刘锦平[1] 赵洪[1] 宋晓莉[1] 李晓磊[1] 

机构地区：[1]中海油天津化工研究设计院,天津300131

出　　处：《无机盐工业》2009年第9期37-39,共3页Inorganic Chemicals Industry

摘　　要：采用溶胶-沉淀法制备了二氧化钛光催化剂,考察了煅烧温度对二氧化钛晶型、粒径及微孔结构等的影响,利用XRD和氮吸附/脱附对其进行了表征。研究结果表明,随着煅烧温度的升高,二氧化钛的晶型逐渐由锐钛矿型转变为金红石型,粒径也逐渐增大,而比表面积和孔容则出现逐渐减小的趋势;另外,微孔的结构也会随煅烧温度的变化发生明显改变。Titanium dioxide （ TiO2 ） photocatalysts were prepared by soLprecipitation method and characterized by XRD and isothermal nitrogen adsorption - desorption. Effects of calcination temperature on crystal phase j grain size, and micropore structure were investigated. Experimental results indicated that phase of TiO2 changes from anatase to rutile and grain size of TiO2 also increases along with elevation of calcination temperature. However, specific area and pore volume had diminishing tendency gradually. In addition ,mierostructure can also change greatly with variation of calcination temperature.

关 键 词：二氧化钛 煅烧温度 微孔结构 

分 类 号：TQ134.11[化学工程—无机化工]