Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium
A serious environmental disaster is looming on the horizon due to the indiscriminate release of heavy metals into the soil and wastewater from human industrial practices. In this study, waste mint (WM) was used to remove chromium(VI) from aqueous solution using batch experiments. The adsorbent mater...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/8848964 |
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| author | Fatima Khammour Fatouma Mohamed Abdoul-Latif Ayoub Ainane Jalludin Mohamed Tarik Ainane |
| author_facet | Fatima Khammour Fatouma Mohamed Abdoul-Latif Ayoub Ainane Jalludin Mohamed Tarik Ainane |
| author_sort | Fatima Khammour |
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| description | A serious environmental disaster is looming on the horizon due to the indiscriminate release of heavy metals into the soil and wastewater from human industrial practices. In this study, waste mint (WM) was used to remove chromium(VI) from aqueous solution using batch experiments. The adsorbent material (WM) was characterized using scanning electron microscopy coupled with energy dispersive analysis of X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermal gravimetric analysis (TGA). The adsorption parameters optimized were as follows: pH solution (2–11), initial concentration of Cr(VI) (10–50 mg/L), adsorbent dose (0.1–10 g/L), and temperature conditions (298 K, 308 K, and 318 K). The experimental data fitted well to the fractional power kinetic model (0.97≤R2≤ 0.99) and Langmuir isotherm (R2 = 0.984) with a maximum adsorption capacity Qmax = 172.41 mg/g. The thermodynamic parameters for Cr(VI) sorption were also calculated, confirming that the adsorption process was spontaneous and accompanied by an exothermic adsorption (−4.83 ≤ ΔG ≤ −3.22 kJ/mol and ΔH = −28.93 kJ/mol). The Cr(VI) removal percentage was within the range of 41–98%, and the highest removal was noted at pH = 2. The results of the present study suggest that WM is a potential low-cost adsorbent for the removal of chromium(VI) from aqueous solutions. |
| format | Article |
| id | doaj-art-4219b7eb12db47d6bc31212dbcaa9dbe |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
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| series | Journal of Chemistry |
| spelling | doaj-art-4219b7eb12db47d6bc31212dbcaa9dbe2025-02-03T05:58:21ZengWileyJournal of Chemistry2090-90632090-90712021-01-01202110.1155/2021/88489648848964Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent ChromiumFatima Khammour0Fatouma Mohamed Abdoul-Latif1Ayoub Ainane2Jalludin Mohamed3Tarik Ainane4Superior School of Technology - Khenifra (EST-Khenifra), University of Sultan Moulay Slimane, BP 170, Khenifra 54000, MoroccoMedicinal Research Institute, Center for Research and Study of Djibouti, BP 486, Djibouti, DjiboutiSuperior School of Technology - Khenifra (EST-Khenifra), University of Sultan Moulay Slimane, BP 170, Khenifra 54000, MoroccoMedicinal Research Institute, Center for Research and Study of Djibouti, BP 486, Djibouti, DjiboutiSuperior School of Technology - Khenifra (EST-Khenifra), University of Sultan Moulay Slimane, BP 170, Khenifra 54000, MoroccoA serious environmental disaster is looming on the horizon due to the indiscriminate release of heavy metals into the soil and wastewater from human industrial practices. In this study, waste mint (WM) was used to remove chromium(VI) from aqueous solution using batch experiments. The adsorbent material (WM) was characterized using scanning electron microscopy coupled with energy dispersive analysis of X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermal gravimetric analysis (TGA). The adsorption parameters optimized were as follows: pH solution (2–11), initial concentration of Cr(VI) (10–50 mg/L), adsorbent dose (0.1–10 g/L), and temperature conditions (298 K, 308 K, and 318 K). The experimental data fitted well to the fractional power kinetic model (0.97≤R2≤ 0.99) and Langmuir isotherm (R2 = 0.984) with a maximum adsorption capacity Qmax = 172.41 mg/g. The thermodynamic parameters for Cr(VI) sorption were also calculated, confirming that the adsorption process was spontaneous and accompanied by an exothermic adsorption (−4.83 ≤ ΔG ≤ −3.22 kJ/mol and ΔH = −28.93 kJ/mol). The Cr(VI) removal percentage was within the range of 41–98%, and the highest removal was noted at pH = 2. The results of the present study suggest that WM is a potential low-cost adsorbent for the removal of chromium(VI) from aqueous solutions.http://dx.doi.org/10.1155/2021/8848964 |
| spellingShingle | Fatima Khammour Fatouma Mohamed Abdoul-Latif Ayoub Ainane Jalludin Mohamed Tarik Ainane Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium Journal of Chemistry |
| title | Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium |
| title_full | Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium |
| title_fullStr | Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium |
| title_full_unstemmed | Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium |
| title_short | Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium |
| title_sort | eco friendly adsorbent from waste of mint application for the removal of hexavalent chromium |
| url | http://dx.doi.org/10.1155/2021/8848964 |
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