摘要
选用钛酸丁酯为原料 ,用溶胶 凝胶 超临界干燥法合成了TiO2 纳米粒子。结果表明 ,在c(Ti4 + ) =0 3～1 0mol/l,c(H2 O) /c(Ti4 + ) =2～ 12 ,c(HAc) =0 3～ 2 4mol/l这一较宽的范围内均可以得到TiO2 醇凝胶 ,经过适当老化时间后 ,进行超临界干燥 ,得到的TiO2 纳米粒子粒径是 2 0～ 30nm ,为球形。
Nanosized TiO 2 particles were prepared by the sol gel surpercritical fluid drying processing from tetrabutyl titanate. The concentrations of reactants were confirmed as c (Ti 4+ )=0 3～1 0 mol/l, c (H 2O)/ c (Ti 4+ )=2～12 , c (HAc)=0 3～2 4 mol/l. Aging time and supercritical fluid drying processing were investigated as well. The result showed that the products were spherical, amorphous and fine, which sizes were of 20 nanometer.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2001年第6期24-29,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
