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Study and Preparation of Aluminum Sol From Inorganic Salt Al(NO3)3

WU J ianfeng, XU Xiaohong, ZHANG Xin

(School of Materials Science and Engineering , Wuhan Univers ity of Technology ,430070)

Abstract: The paper used inorganic salt Al (NO3)3·9H2O as the raw materials and sol-gel method to prepare aluminum sol,XRD and TG-DTA were used to characterize the properties of xerogel.It is found that filtrate after precipitate can improve efficiency of the excluding nitricion, shorten preparation time.At higher pH environment, amorphous precipitation may tend to dis solve-repreparation reaction,and make boehmite grains ,and the crys ta- llite s tate can improve by prolong aging time.

Keywords: inorganic salt,sol- gel method, dissolve- repreparation,aluminum sol,prepared technics


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