Adsorption of carbon dioxide onto activated carbon prepared from lawn grass
| Autor: | Aamir Abbas, Zaheer Aslam, Nubla Mahmood, Ihsanullah Ihsanullah, Umar Irshad, Umar Anait |
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| Rok vydání: | 2020 |
| Předmět: |
Thermogravimetric analysis
Renewable Energy Sustainability and the Environment Chemistry Scanning electron microscope 020209 energy food and beverages Lawn Hydrochloric acid 02 engineering and technology 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Adsorption Carbon dioxide 0202 electrical engineering electronic engineering information engineering medicine Fourier transform infrared spectroscopy 0105 earth and related environmental sciences Activated carbon medicine.drug Nuclear chemistry |
| Zdroj: | Biomass Conversion and Biorefinery. 12:3121-3131 |
| ISSN: | 2190-6823 2190-6815 |
| DOI: | 10.1007/s13399-020-01029-w |
| Popis: | In this work, activated carbon was synthesized from lawn grass via its physical treatment. The lawn grass was washed with hydrochloric acid solution before heat treatment step at different temperatures in the presence of carbon dioxide (CO2) gas. Activated carbon samples obtained from heat treatment process and raw grass samples were completely analyzed using scanning electron microscopy (SEM), thermogravimetric analyzer (TGA), Fourier transforms infrared (FTIR) spectroscopic, and X-ray diffraction (XRD). The surface area of activated carbon resulted from heat treatment of lawn grass in the presence of CO2 was higher, i.e., 208 m2/g, as compared to raw grass, i.e., 0.0068 m2/g. The adsorption capacity was highest (i.e. 0.12 mmol/g at 25 °C and 1 bar for CO2 adsorption) for activated carbon sample prepared at 750 °C. Therefore, activated carbon prepared from heat treatment of lawn grass can be a viable option for pollutants removal by using this low cost and effective adsorbent. |
| Databáze: | OpenAIRE |
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