Activated Carbon from Peach Stones Using Phosphoric Acid Activation at Medium Temperatures
Abstract
In the present study, the activation features of phosphoric acid have been investigated using waste peach stones as the raw material in the production of granular activated carbon. Thermogravimetry/differential thermal analysis was conducted to characterize the thermal behavior of peach stone and titration method was used to evaluate the adsorption capacity of the produced activated carbon. It was observed that the iodine value of the activated carbon increased with activation temperature. However, temperatures higher than 500 degrees C caused a thermal destruction, which resulted in the decrease of the adsorption capacity. Activation longer than 1.5 h at 500 degrees C resulted in thermal degradation of the porous structure of the activated carbon. The adsorption capacity was enhanced with increasing of amounts of phosphoric acid, however, excessive phosphoric acid caused a decrease in the iodine value. In addition, it was found that the carbon yields generally decreased with activation temperature and activation time. Scanning electron microscopy analysis was conducted to observe the changes in the poros structure of the activated carbon produced in different temperatures. Activation of carbon by phosphoric acid was found to be superior to that by CaCl2 and gas activation. The activated carbon produced from peach stone was applied as an adsorbent in the treatment of synthesized wastewater containing cadmium ion and its adsorption capacity was found to be as good as that of the commercial one.
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Zhao et al. reported the highest CO2 capacity was 2.54 mmol/g at 296 K and 1 bar in dry condition.
“the highest CO 2 capacity was 2.54 mmol.g -1 at 296 K and 1 bar in the dry condition [214].”
From Biomass/Biochar carbon materials for CO2 capture and sequestration by cyclic adsorption processes: A review and prospects for future directions (2022) · cites this paper as [214]
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The preparation of active carbons from coal by chemical and physical activation
Ahmadpour, A., & Do, D. D. (1996) · Carbon · doi:10.1016/0008-6223(95)00204-9 · Cited by 763 · see citing works
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Karimi, M., Shirzad, M., Silva, J. A. C., & Rodrigues, A. E. (2022) · Journal of CO2 Utilization · doi:10.1016/j.jcou.2022.101890 · Cited by 237 · see citing works
CO2 capture using N-containing nanoporous activated carbon obtained from argan fruit shells
Boujibar, O., Souikny, A., Ghamouss, F., Achak, O., Dahbi, M., & Chafik, T. (2018) · Journal of Environmental Chemical Engineering · doi:10.1016/j.jece.2018.03.005 · Cited by 137 · see citing works
- Authors
- Kim, D.-S.
- Affiliations
- Ewha Womans University (KR)
- Corresponding author
- Kim, Dong-Su
- ORCID
- Kim, Dong-Su
- Venue
- Journal of Environmental Science and Health, Part A
- Publisher
- Informa UK Limited
- Published
- 2004-12-27
- Volume
- 39
- Issue
- 5
- Pages
- 1301-1318
- ISSN
- 1093-4529 (ISSN-L)
- 1532-4117
- OpenAlex
- W1984199703
- Cited by
- 30
- References
- 1
- Citations by year
- 2024: 1 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 6 · 2018: 3 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 1 · 2012: 2
- FWCI
- 1.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Environmental Science and Health Part A (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
- Keywords
- activated carbon, peach stones, phosphoric acid activation, granular activated carbon, fruit waste valorization, activation temperature, activation time, iodine value, adsorption capacity, porous structure, cadmium removal, wastewater treatment, adsorbents
- MeSH terms
- Adsorption, Carbon, Conservation of Natural Resources, Fruit, Microscopy, Electron, Scanning, Phosphoric Acids, Refuse Disposal, Temperature, Porosity
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