Production and characterisation of activated carbon and carbon nanotubes from potato peel waste and their application in heavy metal removal.
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Herein, activated carbon (AC) and carbon nanotubes (CNTs) were synthesised from potato peel waste (PPW). Different ACs were synthesised via two activation steps: firstly, with phosphoric acid (designated PP) and then using potassium hydroxide (designated PK). The AC produced after the two activation steps showed a surface area as high as 833 m 2 g−1 with a pore volume of 0.44 cm 3 g−1, where the raw material of PPW showed a surface area < 4 m 2 g−1. This can help aid and facilitate the concept of the circular economy by effectively up-cycling and valorising waste lignocellulosic biomass such as potato peel waste to high surface area AC and subsequently, multi-walled carbon nanotubes (MWCNTs). Consequently, MWCNTs were prepared from the produced AC by mixing it with the nitrogen-based material melamine and iron precursor, iron (III) oxalate hexahydrate. This produced hydrophilic multi-wall carbon nanotubes (MWCNTs) with a water contact angle of θ = 14.97 °. Both AC and CNT materials were used in heavy metal removal (HMR) where the maximum lead absorption was observed for sample PK with a 84% removal capacity after the first hour of testing. This result signifies that the synthesis of these up-cycled materials can have applications in areas such as wastewater treatment or other conventional AC/CNT end uses with a rapid cycle time in a two-fold approach to improve the eco-friendly synthesis of such value-added products and the circular economy from a significant waste stream, i.e., PPW.
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There are uncertainties around decomposition rates of various types of biochar, depending on feedstock and process conditions.
“Although considered more stable than soil organic carbon, there are certain uncertainties around decomposition rates of various types of biochar, which depends on the feedstock used and process conditions utilized (Osman et al. 2019;Chen et al. 2019).”
From Strategies for mitigation of climate change: a review (2020) · cites this paper as Osman et al. 2019
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References 63 · Cited by 156
Research works printed but not linked: 2
- Birch ME Ruda-Eberenz TA Chai M Andrews R Hatfield RL Properties that infuence the specific surface areas of carbon nanotubes and nanofibres The Ann of Occup Hyg 2013 57 1148 1166 24029925 PMC4643664
- Marsh H, Reinoso F (2006): Activated carbon. Elsevier
- Authors
- Osman, A. I., Blewitt, J., Abu-Dahrieh, J. K., Farrell, C., Al-Muhtaseb, A. H., Harrison, J., & Rooney, D. W.
- Affiliations
- Queen's University Belfast (GB)
- Sultan Qaboos University (OM)
- South West College (GB)
- Corresponding author
- Osman, Ahmed I.
- Rooney, David W.
- Venue
- Environmental Science and Pollution Research
- Published
- 2019-11-20
- Volume
- 26
- Issue
- 36
- Pages
- 37228-37241
- ISSN
- 0944-1344 (ISSN-L)
- 1614-7499
- PMC
- PMC6937222
- OpenAlex
- W2979371127
- Cited by
- 156
- References
- 63
- Citations by year
- 2026: 14 · 2025: 24 · 2024: 24 · 2023: 18 · 2022: 34 · 2021: 26 · 2020: 15 · 2018: 1
- FWCI
- 6.78
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Environmental Science and Pollution Research (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Research Portal (Queen's University Belfast) (publishedVersion, cc-by)
- Funders
- The Bryden Centre project ((Project ID VA5048))
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Keywords
- activated carbon, carbon nanotubes, multi-walled carbon nanotubes, potato peel waste, heavy metal removal, lead adsorption, phosphoric acid activation, KOH activation, lignocellulosic biomass valorization, circular economy, wastewater treatment
- MeSH terms
- Charcoal, Hydroxides, Solanum tuberosum, Waste Products, Potassium Compounds, Biomass, Metals, Heavy, Nanotubes, Carbon
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