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Open AccessArticle

Ethylene Adsorption Using Cobalt Oxide-Loaded Polymer-Derived Nanoporous Carbon and Its Application to Extend Shelf Life of Fruit

1
Department of Chemical Engineering, Universitas Gadjah Mada, 55281 Yogyakarta, Indonesia
2
Advanced Material and Sustainable Mineral Processing Research Group, Universitas Gadjah Mada, 55281 Yogyakarta, Indonesia
3
Department of Chemical Engineering, Islamic University of Indonesia, 55584 Yogyakarta, Indonesia
*
Authors to whom correspondence should be addressed.
Molecules 2019, 24(8), 1507; https://doi.org/10.3390/molecules24081507
Received: 20 February 2019 / Revised: 9 April 2019 / Accepted: 15 April 2019 / Published: 17 April 2019
(This article belongs to the Special Issue Advances in Porous Materials)
Suppressing the amount of ethylene during storage has been of interest as a method to enhance shelf life of fruit. In this work, ethylene removal by adsorption using cobalt oxide-impregnated nanoporous carbon has been studied. Nanoporous carbon with a high surface area up to 2400 m2 g−1 was prepared by carbonization process biomass and synthetic polymer at 850 °C. Dispersion of cobalt oxide on porous carbon surface was carried out by an incipient wetness procedure followed by calcination process at 200 °C. Ethylene adsorption test was performed using a volumetric method in an ultrahigh vacuum rig constructed by Swagelok VCR® fittings. The results showed that the cobalt oxide/carbon system had significant ethylene adsorption capacity. Ethylene uptake increases with the increasing cobalt oxide loading on the carbon. The highest ethylene capacity of 16 mol kg−1 adsorbent was obtained by using 30 wt.% (weight percentage) of cobalt oxide dispersed in polymer-derived carbon. In closed storage, the ratio of 15 g adsorbent/kg fruit may extend the storage life up to 12 d, higher than that without adsorbent (3 d). Therefore, the results demonstrate the great potential use of cobalt oxide-impregnated nanoporous carbon as an adsorbent for ethylene removal during storage of fruit. View Full-Text
Keywords: ethylene removal; porous carbon; storage life; synthetic polymer ethylene removal; porous carbon; storage life; synthetic polymer
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MDPI and ACS Style

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 2019, 24, 1507.

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