Journal of Chemistry / 2015 / Article / Tab 1

Research Article

Evaluation of Optimal Pore Size of (3-Aminopropyl)triethoxysilane Grafted MCM-41 for Improved CO2 Adsorption

Table 1

Pore structure parameters of the MCM-41s used different amount of swelling agent.

Sample
m2/g

cm3/g

cm3/g

cm3/g

%

nm

MCM-41-r08651.000.270.730.734.64
MCM-41-r27710.980.240.740.765.12
MCM-41-r46960.970.220.750.775.61
MCM-41-r67841.280.241.040.816.57
MCM-41-r87801.610.281.330.837.50

: surface area calculated using BET equation.
: total pore volume estimated at relative pressure.
: micropore volume is determined from the Dubinin-Radushkevich equation.
: subtraction of micropore volume from total volume.
: fraction of mesopore volume.
: the average pore diameter.