Facile fabrication of microporous vitreous carbon for oil organic solvent absorption
- Authors
- Asgar, Md. Ali; Kim, Jun; Yeom, Jeong Woo; Lee, Seongmin; Haq, Muhammad Refatul; Kim, Seok-min
- Issue Date
- Nov-2021
- Publisher
- ELSEVIER
- Keywords
- Porous vitreous carbon; Carbonization; Static contact angle; Absorption capacity; Reusability
- Citation
- ENVIRONMENTAL TECHNOLOGY & INNOVATION, v.24
- Journal Title
- ENVIRONMENTAL TECHNOLOGY & INNOVATION
- Volume
- 24
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/51527
- DOI
- 10.1016/j.eti.2021.101946
- ISSN
- 2352-1864
- Abstract
- The release of oils/organic solvents into a water body is a serious issue as oils and solvents can adversely affect the environment. In this study, a simple fabrication method of porous vitreous carbon oil/organic solvent absorber was developed, and it shows 7 times higher performance than other activated carbon absorber. Three-dimensional interconnected porous vitreous carbon (VC) has been demonstrated for cleaning spilled oils/organic solvents. The porous VC absorbent was fabricated by carbonizing a porous furan precursor, which was prepared by utilizing organic furan resin and table sugar as template materials. Unlike other template-based methods, no template dissolution processes are required in this study. The carbon content in the fabricated porous VC was 91.6%, as confirmed by X-ray photoelectron spectroscopy. The fabricated porous VC exhibited over-hydrophobic characteristics with a static contact angle of 135.1 degrees, and showed high absorption capacity for a wide range of oils/organic solvents. The absorption capacity ranged from 186% to 290% depending on the viscosity, density, and surface tension of the oils/organic solvents. In the reusability experiment, no significant discrepancies were observed in the absorption capacity even after seven cycles. (C) 2021 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
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