Cellulose Acetate-based Carbon Xerogels
And Cryogels
Author(s)
J. Štefelová, M. Mucha & T. Zelenka
Abstract
Low density carbonaceous materials based on biosources were prepared from
cellulose acetate with a catalyst and a crosslinking agent. Standard preparation of
these materials included dissolution, gelation and subsequent drying. In this
study, cellulose acetate xerogels or cryogels were prepared, and the influence of
the different drying techniques applied was investigated. The internal surface
area of cellulose xerogels and cryogels varied from 700 to 850 m2 g-1, the
volume of pores was 0.3 ml g-1. Other properties such as thermal decomposition
or surface chemistry were gained and both materials were analysed by adsorption
experiments of selected heavy metal and organic dye from aqueous phase.
Keywords: cellulose acetate, xerogel, cryogel, freeze-drying.
Keywords
cellulose acetate, xerogel, cryogel, freeze-drying
Related Book
Other papers in this volume
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