Volume 14, Issue 4 (1-2019)
J Health Syst Res 2019, 14(4): 466-472 |
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Ghasemi O, Mehrdadi N, Baghdadi M, Aminzadeh B. Sorption of Oil Spills from Aqueous Solution by Exfoliated Graphite. J Health Syst Res 2019; 14 (4) :466-472
URL: http://hsr.mui.ac.ir/article-1-1055-en.html
URL: http://hsr.mui.ac.ir/article-1-1055-en.html
1- PhD Candidate, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
2- Professor, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
3- Associate Professor, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
4- Assistant Professor, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
2- Professor, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
3- Associate Professor, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
4- Assistant Professor, Department of Environmental Engineering, School of Environment, College of Engineering, University of Tehran, Tehran, Iran
Abstract: (1629 Views)
Background: In recent years, oil production activities in Caspian Sea have caused serious damages to this ecosystem. In this study, sorption capability of oil sample, which was explored from Sardar-e-Jangal oilfield in Caspian Sea, Iran, was investigated by exfoliated graphite.Methods: The final absorbent was investigated by Fourier-Transform Infrared Spectroscopy (FTIR), Brunauer–Emmett–Teller (BET) analysis, Energy Dispersive X-ray Spectroscopy (EDS), and Scanning Electron Microscopy (SEM). The amount of oil sample sorption by exfoliated graphite absorbent was investigated using gravimetric and Response Surface Methodology (RSM) via design expert software.Findings: Exfoliated graphite due to increase in porosity and expansion of graphite sheets could absorb a great deal of oil material with increase in absorbing capacity in comparison to simple graphite. Absorbent structure analysis by SEM, FTIR, BET, and EDS methods or devices revealed the exfoliating and increasing of absorbent cross-section and pores’ volume and consequently increasing the absorbing capacity of exfoliated graphite. The validity of RSM method was investigated and confirmed, and identified parameters (volume of absorbent and oil) were assessed by this method which showed that the maximum absorption was 27.6 gr of oil sample using 1 gr of exfoliated graphite absorbent.Conclusion: Exfoliated graphite, due to easier synthesis, low cost, and high performance in absorption in comparison to simple graphite and other carbon-based absorbents could be used as an appropriate absorbent for oil sorption.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2021/11/16 | Published: 2021/11/16
Received: 2020/07/16 | Accepted: 2021/11/16 | Published: 2021/11/16
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