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

Maria Ulfa

Abstract

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 describing the homogeneous degree of KPG with the high order of micropore filling. D-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.The result of TEM shows the carbon particle aggregation and FTIR result shows that carbon particle were 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) physically occurred which is applicable to the next gas adsorption process.

Keywords

microporous analysis; Dubinin–Radushkevich; homogeneity; porous; carbon

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References

Bandosz, T.J., and Petit, C., 2009. On the reactive adsorption of ammonia on activated carbons modified by impregnation with inorganic compounds. Journal of Colloid and Interface Science 338, 329–345. doi:10.1016/j.jcis.2009.06.039

Coluccia, S., Marchese, L., and Martra, G., 1999. Characterisation of microporous and mesoporous materials by the adsorption of molecular probes: FTIR and UV–Vis studies. Microporous and Mesoporous Materials 30, 43–56. doi:10.1016/S1387-1811(99)00019-0

Dubinin, M.M., 1960. The potential theory of adsorption of gases and vapors for adsorbents with energetically non-uniform surface. Chemical Reviews 60, 235–241.

Dubinin, M.M., and Astakhov, V., 1980. Dubinin MM, Astakhov VA. Development of the concepts of volume filling of micropores in the adsorption of gases and vapors by microporous adsorbents 1. Carbon adsorbents. Izv Akad Nauk SSSR Ser Khim 1971;1:5–11. Chemical Engineering Journal 12, 23–30.

Dubinin M.M., and Astakhov, V., 1970. Description of adsorption equilibria of vapors on zeolites over wide ranges of temperature and pressure. Advances in Chemistry 102, 69–85.

Gauden, P.A., Terzyk, A.P., Furmaniak, S., Wesołowski, R.S.P., Kowalczyk, P., and Garbacz, J.K., 2004. Impact of an adsorbed phase nonideality in the calculation of the filling pressure of carbon slit-like micropores. Carbon 42 (3), 573–583. doi:10.1016/j.carbon.2003.12.065

Joo, S.H., Jun, S., and Ryoo, R., 2001. Synthesis of ordered mesoporous carbon molecular sieves CMK-1. Microporous and Mesoporous Materials 44-45, 153-158 doi:10.1016/S1387-1811(01)00179-2

Lashaki, M.J., Fayaz, M., Niknaddaf, S., and Hashisho, Z., 2012. Effect of the adsorbate kinetic diameter on the accuracy of the Dubinin – Radushkevich equation for modeling adsorption of organic vapors on activated carbon. Journal of Hazardous Materials 241–242, 154–163. doi:10.1016/j.jhazmat.2012.09.024

Li, P., Song, Y., Guo, Q., Shi, J., and Liu, L., 2011. Tuning the pore size and structure of mesoporous carbons synthesized using an evaporation-induced self-assembly method. Materials Letters 65, 2130–2132. doi:10.1016/j.matlet.2011.04.081

Nguyen, C., and Dubinin, D., 2001. The Dubinin–Radushkevich equation and the underlying microscopic adsorption description. Carbon 39, 1327–1336.

Rodríguez-Guerrero, A., Molina, J.M., Rodríguez-Reinoso, F., Narciso, J., and Louis, E., 2008. Pore filling in graphite particle compacts infiltrated with Al-12 wt.%Si and Al-12 wt.%Si-1 wt.%Cu alloys. Materials Science and Engineering: A 495, 276–281. doi:10.1016/j.msea.2008.01.071

Ulfa, M., Trisunaryanti, W., Falah, I., and Kartini, I., 2016. Synthesis of Mesoporous Carbon using Gelatin as A Carbon Source and SBA-15 as A Template for Dibenzotiophene Adsorption. International Journal of ChemTech Research 9, 9555.

Ulfa, M., Trisunaryanti, W., Falah, I.I., and Kartini, I., 2015b. Characterization of Gelatines Extracted From Cow Bone for Carbon Synthesis IOSR Journal of Applied Chemistry 8, 57–63. doi:10.9790/5736-08825763

Ulfa, M., Trisunaryanti, W., Falah, I.I., and Kartini, I., 2014a. Synthesis of mesoporous carbon using gelatin as source of carbon by hard template technique and its characterizations. IOSR Journal of Applied Chemistry 7, 1–7.

Ulfa, M., Trisunaryanti, W., Falah, I.I., and Kartini, I., 2014b. Studies of kinetic on thermal decomposition of mesoporous carbon of gelatin by thermogravimetric technique. International Journal of Innovation and Applied Studies 7, 849–856.

Wu, F., Wu, P., Tseng, R., and Juang, R., 2014. Journal of the Taiwan Institute of Chemical Engineers Description of gas adsorption isotherms on activated carbons with heterogeneous micropores using the Dubinin – Astakhov equation. Journal of the Taiwan Institute of Chemical Engineers 45, 1757–1763. doi:10.1016/j.jtice.2014.01.016

Yan, Y., Wei, J., Zhang, F., Meng, Y., Tu, B., and Zhao, D., 2008. The pore structure evolution and stability of mesoporous carbon FDU-15 under CO2, O2 or water vapor atmospheres. Microporous and Mesoporous Materials 113, 305–314. doi:10.1016/j.micromeso.2007.11.028

Zhou, H., Zhu, S., Honma, I., and Seki, K., 2004. Methane gas storage in self-ordered mesoporous carbon (CMK-3). Chemical Physics Letters 396 (4), 252-255 doi:10.1016/j.cplett.2004.07.120

DOI: https://doi.org/10.20961/alchemy.13.1.4070.103-118

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