Adsorption of Ethylene using Cobalt Oxide-Loaded Pillared Clay
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2020.52.3.9Keywords:
adsorption, bentonite, cobalt oxide, ethylene, pillared clayAbstract
Clay is an abundant material that is widely used as an adsorbent in pristine or pillared form. Pillared clays feature better properties, e.g. higher specific surface area, thus they can adsorb a higher quantity of adsorbates compared to pristine material. In this work, a preparation of pillared clay using Indonesian natural bentonite and its potential for ethylene removal are presented. The novelty is that a pillaring agent of cobalt (mixed with aluminum) was used, which not only served as a pillar but also as an active metal adsorbent for ethylene. Natural bentonite was pillared using Al (NO3)3.9H2O and Co (NO3)2.6H2O. The resulting material was then calcined at 250 C. The final material was characterized by N2-sorption analysis, scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) analysis. The cobalt to aluminum ratios used were 1:9, 1:3, 1:1, 1:1/3, and 1:0. From characterization, the Co-Al pillared bentonite featured a specific surface area of up to 114 m2/g (pristine bentonite = 42 m2/g). In the adsorption test, an enhanced ethylene uptake of up to 6 times (at ambient temperature) compared to pristine bentonite was obtained. Thus, the results highlight the potential of cobalt oxide/pillared clay as ethylene scavenger.Downloads
References
Martnez-Romero, D., Bailen, G., Serrano, M., Guillen, F., Valverde, J.M., Zapata, P., Castillo, S. & Valero, D., Tools to Maintain Postharvest Fruit and Vegetable Quality through the Inhibition of Ethylene Action: A Review, Critical Reviews in Food Science and Nutrition, 47, pp. 543-560, 2007.
Setyadjit, Sukasih, E. & Permana, A.W., Application of 1-MCP to Extend Shelf-Life of Horticultural Commodities, Buletin Teknologi Pascapanen Pertanian, 8, pp. 27-33, 2012.
Sholihati, Abdullah, R. & Suroso, Study of Prolonging Ripening Process of Pisang Raja (Musa paradisiaca Var. Sapientum L.) using Adsorption Material of Kalium Permanganate, Jurnal Rona Teknik Pertanian, 8, pp. 76-89, 2015.
Cao, J., Li, X., Wu, K., Jiang, W. & Qu, G., Preparation of a Novel Pdcl2-Cuso4-Based Ethylene Scavenger Supported by Acidified Activated Carbon Powder and its Effects on Quality and Ethylene Metabolism of Broccoli During Shelf-Life, Postharvest Biology and Technology, 99, pp. 50-57, 2015.
Mukti, N.I.F., Prasetyo, I. & Mindaryani, A., Preparation of Cobalt Oxide Impregnated Porous Carbon Synthesized from Mangosteen Peel as Ethylene Adsorbent to Prolonging Shelf-Life of Fruit, Reaktor, 15, pp. 165-174, 2015.
Liu, Y., Dai, H., Deng, J., Xie, S., Yang, H., Tan, W., Han, W., Jiang, Y. & Guo, G, Mesoporous Co3O4-Supported Gold Nanocatalysts: Highly Active for the Oxidation of Carbon Monoxide, Benzene, Toluene, and O-Xylene, Journal of Catalysis, 309, pp. 408-428, 2014.
Prasetyo, I., Mukti, N.I.F. & Ariyanto, T., Ethylene Adsorption Using Cobalt Oxide-Loaded Polymer-Derived Nanoporous Carbon and Its Application to Extend Shelf Life of Fruit, Molecules, 24(1507), pp. 1-11, 2019.
Darowski, A., PodkoA?cielny, P., Hubicki, Z. & Barczak, M., Adsorption of Phenolic Compounds by Activated Carbon - A Critical Review, Chemosphere, 58, pp. 1049-1070, 2005.
Keller, N., Ducamp, M.N., Robert, D. & Keller, V., Ethylene Removal and Fresh Product Storage: A Challenge at the Frontiers of Chemistry. Toward An Approach by Photocatalytic Oxidation, Chemical Reviews, 113, pp. 5029-5070, 2013.
Crini, G., Non-Conventional Low-Cost Adsorbents for Dye Removal: A review, Bioresource Technology, 97, pp. 1061-1085, 2006.
Gil, A., Assis, F.C.C., Albeniz, S. & Korili, S.A., Removal of Dyes from Wastewaters by Adsorption on Pillared Clays, Chemical Engineering Journal, 168, pp. 1032-1040, 2011.
Azha, S., Hamid, S. & Ismail, S., Development of Composite Adsorbent Coating Based Acrylic Polymer/Bentonite for Methylene Blue Removal, Journal of Engineering and Technological Sciences, 49, pp. 225-235, 2017.
Priyantini, H.R., Sediawan, W.B., Rochmadi & Prasetyo, I., Kinetic Modelling of Basic Blue 41 Dye Adsorption using Pillared Bentonite, Seminar Nasional Kimia dan Pendidikan Kimia V, pp. 231-238, 2013.
Wijaya, K., Sugiharto, E., Tahir, I. & Liawati, I., Synthesis of Iron Oxide-Montmorillonite Composite and Study of Its Structural Stability Againts Sulfuric Acid, Indonesian Journal of Chemistry, 4, pp. 33-42, 2004.
Bertella F. & Pergher, S.B.C., Pillaring of Bentonite Clay with Al and Co, Microporous and Mesoporous Materials, 201, pp. 116-123, 2015.
Do, D.D., Adsorption Analysis: Equilibria and Kinetics, Vol. 2, Imperial College, 1998.
Fletcher, A., Porosity and Sorption Behaviour, 2008, http://personal.strath.ac.uk/ashleigh.fletcher/adsorption.htm#top (December 2018)
Alver B.E. & Gunal A., Ethylene Adsorption on Acid-treated Clay Minerals, Adsorption Science & Technology, 30, pp. 265-273, 2012.
Sakizci, M., Effect of Salt Modification and Acid Activation on Ethylene Adsorption Properties of Sepiolite, Adsorption, 19, pp. 1083-1091, 2013.
Alver, B.E. & Sakizci, M., Thermal , Structural and Ethylene Adsorption Properties of Ag-, Cu- and Fe-modified Bentonite from Turkey, Journal of Thermal Analysis and Calorimetry, 126, pp. 1533-1540, 2016.
