Abstract    Carbon dioxide (CO2) adsorption on unfunctionalized and amino-functionalized SBA-3 materials are investigated and compared in this study. The synthesized materials are characterized by various techniques such as X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET) method, Fourier transform infrared (FT-IR) and Scanning electron microscopy (SEM).The isotherms of these materials have been measured using volumetric method at 298 K up to 5 bar. The adsorption capacity of CO2 by mesoporous silica was enhanced through functionalization with amine groups. It is observed that the pentaethylene hexamine functionalized SBA-3 (SBA-3/PEHA) shows a higher adsorption capacity towards CO2 compared to other adsorbents.

Keywords    CO2 adsorption; Mesoporous silica; SBA-3; Amine functionalization; Pentaethylenehexamine (PEHA).

چکیده    جاذب های SBA-3عامل دار نشده و عامل دار شده با گروههای آمینی، برای جذب CO2سنتز گردید. ويژگي­هاي ساختاري و فيزيکي جاذب های سنتز شده با روش هاي پراش اشعه ايکس (XRD)، آناليز جذب و واجذب نيتروژن، اسپکتروسکوپي مادون قرمز تبديل فوريه (FTIR) و ميکروسکوپي الکتروني روبشي (SEM) شناسايي شده است. مقدار گاز ذخيره شده در دماي محيط (K298 (و فشار گاز تا bar5 به روش حجم سنجي اندازه­گيري شده است. از طریق عامل دار کردن مزومتخلخل سیلیکاتی با گروههای آمینی، ظرفیت جذب CO2 افزایش می یابد. جاذب SBA-3/PEHA بیشترین میزان ظرفیت جذب CO2 را نسبت به دیگر جاذب ها از خود نشان می دهد.

References      1.     Anson, A., Lin, C.C., Kuznicki, S.M. and Sawada, J.A., "Adsorption of carbon dioxide, ethane, and methane on titanosilicate type molecular sieves", Chemical Engineering Science,  Vol. 64, No. 16, (2009), 3683-3687. 2.     An, H., Feng, B. and Su, S., "Co 2 capture by electrothermal swing adsorption with activated carbon fibre materials", International Journal of Greenhouse Gas Control,  Vol. 5, No. 1, (2011), 16-25. 3.     Zhao, G., Aziz, B. and Hedin, N., "Carbon dioxide adsorption on mesoporous silica surfaces containing amine-like motifs", Applied Energy,  Vol. 87, No. 9, (2010), 2907-2913. 4.     Zhao, L., Sang, L., Chen, J., Ji, J. and Teng, H.H., "Aqueous carbonation of natural brucite: Relevance to co2 sequestration", Environmental Science & Technology,  Vol. 44, No. 1, (2009), 406-411. 5.     Mignardi, S., De Vito, C., Ferrini, V. and Martin, R., "The efficiency of co 2 sequestration via carbonate mineralization with simulated wastewaters of high salinity", Journal of Hazardous Materials,  Vol. 191, No. 1, (2011), 49-55. 6.     Zevenhoven, R., Fagerlund, J. and Songok, J.K., "Co2 mineral sequestration: Developments toward large‐scale application", Greenhouse Gases: Science and Technology,  Vol. 1, No. 1, (2011), 48-57. 7.     Olajire, A.A., "Co 2 capture and separation technologies for end-of-pipe applications–a review", Energy,  Vol. 35, No. 6, (2010), 2610-2628. 8.     Samanta, A., Zhao, A., Shimizu, G.K., Sarkar, P. and Gupta, R., "Post-combustion co2 capture using solid sorbents: A review", Industrial & Engineering Chemistry Research,  Vol. 51, No. 4, (2011), 1438-1463. 9.     Rhodes, J.S. and Keith, D.W., "Engineering economic analysis of biomass igcc with carbon capture and storage", Biomass and Bioenergy,  Vol. 29, No. 6, (2005), 440-450. 10.   Aronu, U.E., Svendsen, H.F. and Hoff, K.A., "Investigation of amine amino acid salts for carbon dioxide absorption", International Journal of Greenhouse Gas Control,  Vol. 4, No. 5, (2010), 771-775. 11.   Gray, M., Soong, Y., Champagne, K., Baltrus, J., Stevens, R., Toochinda, P. and Chuang, S., "Co 2 capture by amine-enriched fly ash carbon sorbents", Separation and Purification Technology,  Vol. 35, No. 1, (2004), 31-36. 12.   Jang, H.T., Park, Y., Ko, Y.S., Lee, J.Y. and Margandan, B., "Highly siliceous mcm-48 from rice husk ash for co 2 adsorption", International Journal of Greenhouse Gas Control,  Vol. 3, No. 5, (2009), 545-549. 13.   Anbia, M., Hoseini, V. and Mandegarzad, S., "Synthesis and characterization of nanocomposite mcm-48-peha-dea and its application as co2 adsorbent", Korean Journal of Chemical Engineering,  Vol. 29, No. 12, (2012), 1776-1781. 14.   Anbia, M. and Hoseini, V., "Enhancement of co 2 adsorption on nanoporous chromium terephthalate (mil-101) by amine modification", Journal of Natural Gas Chemistry,  Vol. 21, No. 3, (2012), 339-343. 15.   Kamarudin, K.S.N. and Alias, N., "Adsorption performance of mcm-41 impregnated with amine for co 2 removal", Fuel Processing Technology,  Vol. 106,, (2013), 332-337. 16.   Taghipoura, Z., Eisazadeh, H. and Tanzifi, M., "Modification of polyaniline/polystyrene and polyaniline/metal oxide structure by surfactant", International Journal of Engineering-Transactions B: Applications,  Vol. 27, No. 2, (2013), 227. 17.   Wu, X., Yuan, B., Bao, Z. and Deng, S., "Adsorption of carbon dioxide, methane and nitrogen on an ultramicroporous copper metal–organic framework", Journal of Colloid and Interface Science,  Vol. 430, No., (2014), 78-84. 18.   McEwen, J., Hayman, J.-D. and Yazaydin, A.O., "A comparative study of co 2, ch 4 and n 2 adsorption in zif-8, zeolite-13x and bpl activated carbon", Chemical Physics,  Vol. 412, No., (2013), 72-76. 19.   Anbia, M. and Davijani, A., "Synthesis of ethylenediamine-modified ordered mesoporous carbon as a new nanoporous adsorbent for removal of cu (ii) and pb (ii) ions from aqueous media", International Journal of Engineering-Transactions C: Aspects,  Vol. 27, No. 9, (2014), 1415-1423. 20.   Anbia, M. and Ghaffari, A., "Modified nanoporous carbon material for anionic dye removal from aqueous solution", International Journal of Engineering-Transactions B: Applications,  Vol. 25, No. 4, (2012), 259-270. 21.   Zhao, D., Huo, Q., Feng, J., Chmelka, B.F. and Stucky, G.D., "Nonionic triblock and star diblock copolymer and oligomeric surfactant syntheses of highly ordered, hydrothermally stable, mesoporous silica structures", Journal of the American Chemical Society,  Vol. 120, No. 24, (1998), 6024-6036. 22.   Albouy, P.-A. and Ayral, A., "Coupling x-ray scattering and nitrogen adsorption: An interesting approach for the characterization of ordered mesoporous materials. Application to hexagonal silica", Chemistry of Materials,  Vol. 14, No. 8, (2002), 3391-3397. 23.   Ryoo, R., Ko, C.H., Kruk, M., Antochshuk, V. and Jaroniec, M., "Block-copolymer-templated ordered mesoporous silica: Array of uniform mesopores or mesopore-micropore network?", The Journal of Physical Chemistry B,  Vol. 104, No. 48, (2000), 11465-11471. 24.   Galarneau, A., Desplantier-Giscard, D., Di Renzo, F. and Fajula, F., "Thermal and mechanical stability of micelle-templated silica supports for catalysis", Catalysis Today,  Vol. 68, No. 1, (2001), 191-200. 25.   Liu, X., Zhou, L., Fu, X., Sun, Y., Su, W. and Zhou, Y., "Adsorption and regeneration study of the mesoporous adsorbent sba-15 adapted to the capture/separation of co2 and ch4", Chemical Engineering Science,  Vol. 62, No. 4, (2007), 1101-1110. 26.   Sayari, A., Belmabkhout, Y. and Serna-Guerrero, R., "Flue gas treatment via co 2 adsorption", Chemical Engineering Journal,  Vol. 171, No. 3, (2011), 760-774. 27.   Huo, Q., Margolese, D.I. and Stucky, G.D., "Surfactant control of phases in the synthesis of mesoporous silica-based materials", Chemistry of Materials,  Vol. 8, No. 5, (1996), 1147-1160. 28.   Nowińska, K., Formaniak, R., Kaleta, W. and Wacław, A., "Heteropoly compounds incorporated into mesoporous material structure", Applied Catalysis A: General,  Vol. 256, No. 1, (2003), 115-123. 29.   Göltner, C.G., Smarsly, B., Berton, B. and Antonietti, M., "On the microporous nature of mesoporous molecular sieves", Chemistry of Materials,  Vol. 13, No. 5, (2001), 1617-1624. 30.   Selvam, P., Bhatia, S.K. and Sonwane, C.G., "Recent advances in processing and characterization of periodic mesoporous mcm-41 silicate molecular sieves", Industrial & Engineering Chemistry Research,  Vol. 40, No. 15, (2001), 3237-3261. 31.   Jaroniec, C., Kruk, M., Jaroniec, M. and Sayari, A., "Tailoring surface and structural properties of mcm-41 silicas by bonding organosilanes", The Journal of Physical Chemistry B,  Vol. 102, No. 28, (1998), 5503-5510. 32.   Bao, Z., Yu, L., Ren, Q., Lu, X. and Deng, S., "Adsorption of co 2 and ch 4 on a magnesium-based metal organic framework", Journal of Colloid and Interface Science,  Vol. 353, No. 2, (2011), 549-556. 33.   Bao, Z., Alnemrat, S., Yu, L., Vasiliev, I., Ren, Q., Lu, X. and Deng, S., "Kinetic separation of carbon dioxide and methane on a copper metal–organic framework", Journal of Colloid and Interface Science,  Vol. 357, No. 2, (2011), 504-509. 34.   Yue, M.B., Sun, L.B., Cao, Y., Wang, Z.J., Wang, Y., Yu, Q. and Zhu, J.H., "Promoting the co 2 adsorption in the amine-containing sba-15 by hydroxyl group", Microporous and Mesoporous Materials,  Vol. 114, No. 1, (2008), 74-81. 35.   Zhao, H., Hu, J., Wang, J., Zhou, L. and Liu, H., "Co 2 capture by the amine-modified mesoporous materials", Acta Physico-Chimica Sinica,  Vol. 23, No. 6, (2007), 801-806. 36.   Hiyoshi, N., Yogo, K. and Yashima, T., "Adsorption of carbon dioxide on modified mesoporous materials in the presence of water vapor", Studies in Surface Science and Catalysis,  Vol. 154, No., (2004), 2995-3002.