Adsorption Mechanisms of Pentafluoropropanol (5FP) onto Activated Carbons Produced by Tetraethoxysilane Sol-Gel Method
2,2,3,3,3-Pentafluoro-1-propanol (5FP) has been considered a viable CFC replacement compound. However, 5FP must be recovered in order to decrease the environmental impact and save energy. Activated carbons have been used for the recovery and removal of organic solvents. From the point of view of "zero emission," 5FP and activated carbon must be completely recycled. The purpose of this study is to recycle the activated carbons and to increase the recovery efficiency of 5FP using the activated carbons (ST-ACs) which were coated with tetraethoxysilane by the sol-gel method. The amount of 5FP adsorbed onto the ST-ACs and the degree of 5FP decomposition by the ST-ACs were measured in order to estimate the relationship between the ST-AC surface and 5FP. The amount of 5FP adsorbed and the degree of 5FP decomposition indicated that the recovery of 5FP is suitable for the use with the ST-ACs. Copyright 1997 Academic Press. Copyright 1997Academic Press
Kawasaki
N
Faculty of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashiosaka-shi, Osaka, 577, Japan
Tanada
S
Nakamura
T
Ohue
T
Abe
I