Sol-gel水热偶合法制备纳米AlOOH及其表征  

Preparation and Characterization of Nano-AlOOH by Sol-gel and Hydrothermal Treatment

作　　者：刘昌华[1] 廖海达[2] 龙翔云[3] 

机构地区：[1]西南师范大学化学化工学院,重庆400715 [2]广西民族学院化学化工系,广西南宁530006 [3]广西大学化学化工学院,广西南宁530004

出　　处：《西南师范大学学报（自然科学版）》2003年第2期263-266,共4页Journal of Southwest China Normal University(Natural Science Edition)

摘　　要：以Al2(SO4)3为原料,在pH值为3 5,溶胶浓度为0 3～0 5mol/L,分散剂0 3%,温度为80℃的条件下,胶溶4h,后经5h100～150℃的水热处理,制得平均粒度小于70nm的AlOOH;用TEM、X射线衍射、TGDTA对样品进行了表征,并研究了不同介质、不同pH、不同分散剂用量对分散性能的影响。Aluminium sulphate was applied as a precursor. At pH=3.5, the amount of dispersant was 0.3 %, the concentration of colloid was 03-05 mol/L, while the colloid was kept at 80 ℃ for 4 hours. The steady colloid obtained was hydrothermally treated at 100-150 ℃ for 5 hours. The scale of the nanoAlOOH prepared is less than 70 nm. The sample was characterized by TEM, Xrays and TGDTA. The dispersion behavior of AlOOH was studied in different media, pH, concentration of dispersant.

关 键 词：纳米A100H SoE—gel水热偶合法 制备 溶胶—凝胶法 结构表征 分散性能 

分 类 号：TB383[一般工业技术—材料科学与工程]