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Potential of nanocomposites of zero valent copper and magnetite with Eleocharis dulcis biochar for packed column and batch scale removal of Congo red dye
Abstract
The current study is the first attempt to prepare nanocomposites of Eleocharis dulcis biochar (EDB) with nano zero-valent Copper (nZVCu/EDB) and magnetite nanoparticles (MNPs/EDB) for batch and column scale sequestration of Congo Red dye (CR) from synthetic and natural water. The adsorbents were characterized with advanced analytical techniques. The impact of EDB, MNPs/EDB and nZVCu/EDB dosage (1–4 g/L), pH (4–10), initial concentration of CR (20–500 mg/L), interaction time (180 min) and material type to remove CR from water was examined at ambient temperature. The CR removal followed sequence of nZVCu/EDB > MNPs/EDB > EDB (84.9–98% > 77–95% > 69.5–93%) at dosage 2 g/L when CR concentration was increased from 20 to 500 mg/L. The MNPs/EDB and nZVCu/EDB showed 10.9% and 20.1% higher CR removal than EDB. The adsorption capacity of nZVCu/EDB, MNPs/EDB and EDB was 212, 193 and 174 mg/g, respectively. Freundlich model proved more suitable for sorption experiments while pseudo 2nd order kinetic model well explained the adsorption kinetics. Fixed bed column scale results revealed excellent retention of CR (99%) even at 500 mg/L till 2 h when packed column was filled with 3.0 g nZVCu/EDB, MNPs/EDB and EDB. These results revealed that nanocomposites with biochar can be applied efficiently for the decontamination of CR contaminated water.
Citations
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Authors (11)
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Muhammad Imran
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100, Vehari, Pakistan
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A Natasha
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100, Vehari, Pakistan
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Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100, Vehari, Pakistan
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Sabah Ansar
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
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Noor S. Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100, Vehari, Pakistan
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Zia Ul Haq Khan
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100, Vehari, Pakistan
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Ali Shahid
- Materials Research Laboratory, Department of Physics, University of Peshawar, Peshawar, 25120, Pakistan
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Farhan Hafeez
- Department of Environmental Sciences, COMSATS University Islamabad (CUI), Tobe Camp, Abbottabad Campus, KPK, Pakistan
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Ali Shafaqat
- Department of Biological Sciences and Technology, China Medical University, Taichung, 40402, Taiwan
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Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
Cite as
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ENVIRONMENTAL POLLUTION
no. 305,
ISSN: 0269-7491 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Imran M., Natasha A., Murtaza B., Ansar S., Shah N. S., Khan Z. U. H., Shahid A., Boczkaj G., Hafeez F., Shafaqat A., Rizwan M.: Potential of nanocomposites of zero valent copper and magnetite with Eleocharis dulcis biochar for packed column and batch scale removal of Congo red dye// ENVIRONMENTAL POLLUTION -Vol. 305, (2022), s.119291-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.envpol.2022.119291
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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