THE POROUS STRUCTURE OF ACTIVE CARBONS MODIFIED WITH GLUCOSE PYROLYSIS PRODUCTS

Model investigations concerning the influence of the amount of organic matter, formed by pyrolysis on the surface of two types of active car bon, on the porous structure of the adsorbents obtained were carried o ut. Glucose was the pyrolysed compound, and it was deposited on the su rface of a given carbon adsorbent in amounts ranging from about 12.5 t o 100% (w/w) prior to the pyrolysis process. Active carbons prepared o n the basis of plum stones and dispersed hard coal were investigated. The two starting adsorbents had different surface textures, which infl uenced the modification of their porous structure. Some possibilities of controlling the porous structure parameters were demonstrated. In a ddition to the adsorption investigations, scanning electron micrograph s were taken of the adsorbents prepared. Possible applications of the modified sorbents are discussed.