ANALYSIS OF MICROPOROSITY ON POROUS CARBON FROM GELATIN (KPG) USING N2 ADSORPTION-DESORPTION BY DUBININ–RADUSHKEVICH (D-R) MODEL

Abstract

<p class="AbstracttitleDERJournal"><span>Porous gelatin carbons (KPG) sample with micropores were synthesized from gelatin via templating method. This study analyzed microporosity using the Dubinin– Radushkevich (D-R) equation. The result shows that KPG sample has microporous type with empirical parameter n=2 which describ</span><span>ing</span><span> the homogeneous degree of KPG with the high order of micropore filling. </span><span lang="DE">D</span><span lang="DE">-</span><span lang="DE">R plot shows that the increasing the ratio of gelatin to SBA-15 led to the decreasing the microporosity of samples. However, this increases the size and pore volume due to the success of templating process.</span><span>The result of TEM shows the carbon particle aggregation and FTIR result shows that carbon particle </span><span>were </span><span>dominated by the functional group of oxygen and hydrocarbon. The energy of adsorption range of 5-10 kJ/mol and a value of n=2 demonstrated that the adsorption of nitrogen on the porous gelatin carbon (KPG) </span><span>physically </span><span>occurred which is applicable to the next gas adsorption process.</span></p>