Adsorption methodology: Synthesis of Nano-structured nitrogen-doped porous carbon adsorbents for perchloroethylene vapor adsorption
| Autor: | Mohammad Samipoorgiri, Alimorad Rashidi, Mohammad Ghasemi Kahangi |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Analytical Methods in Environmental Chemistry Journal. 3:30-39 |
| ISSN: | 2645-5382 2645-5552 |
| DOI: | 10.24200/amecj.v3.i04.125 |
| Popis: | The perchloroethylene (PCE, tetrachloroethylene), as a representative of chlorinated ethylenes and volatile organic compounds (VOCs), can be easily transported and remain in the atmosphere due to its volatility and stability properties. As a result, there is a crucial need to reduce this pollution to the extent permitted by international standards. The concentration of PCE determined with Gas chromatography–mass spectrometry analyzer (GC-MS). Activated nanocarbons (ACs) doped with nitrogen functional groups were prepared using the walnut shell as a precursor to evaluate their adsorption capacity for PCE vapors. Several techniques, including scanning electron microscopy (SEM), N2 adsorption-desorption, and the Fourier transforms infrared spectrometry (FTIR), were applied to characterize the physical-chemical properties of the ACs. It is found that the PCE adsorption considerably increased on the nitrogen-doped ACs (KNCWS) due to their structural and surface charge properties. By conducting kinetic study, the pseudo-first-order model matched well with experimental data. |
| Databáze: | OpenAIRE |
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