Determination of Surface area of local silica via different methods
Keywords:
Local silicate rock (Ninavite), Thermal treatment, Surface area, EGME adsorption, Adsorption from solution, Adsorption of organic vaporAbstract
The surface area of a local silicate rock was investigated using different
methods after being thermally treated at 200, 400,600 and 800 C° to detect the
optimum temperature of treatment. The study has disclosed that the optimum
temperature of treatment was 600C° for its maximum surface areas as compared to
others. The surface area of the thermally treated samples was determined by many
methods including retention by ethylene glycol mono ethyl ether (EGME),
adsorption from solution using PNP and MB as solutes as well as the adsorption
from vapor phase using acetone vapor. These samples, however, exhibited good
surface areas as compared to the untreated silicate .Also, the adsorption isotherm
of PNP and MB of all samples were determined and found to be fit to Langmuir
type of isotherm which refers to clear micro porous tendency.
