Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes
In recent years, the removal of dyes has emerged as a significant problem that attracted several researchers. The search for green and eco-friendly adsorbents has been a never-ending task in environmental protection to overcome this issue. Herein, almond shells (AS) were used as an adsorbent to remo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Colloids and Interfaces |
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| Online Access: | https://www.mdpi.com/2504-5377/6/2/22 |
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| author | Abderrahim Kali Abdelouahed Amar Ilyasse Loulidi Chaimaa Hadey Maria Jabri Awad A. Alrashdi Hassane Lgaz Mohamed Sadoq Abderrazek El-kordy Fatima Boukhlifi |
| author_facet | Abderrahim Kali Abdelouahed Amar Ilyasse Loulidi Chaimaa Hadey Maria Jabri Awad A. Alrashdi Hassane Lgaz Mohamed Sadoq Abderrazek El-kordy Fatima Boukhlifi |
| author_sort | Abderrahim Kali |
| collection | DOAJ |
| description | In recent years, the removal of dyes has emerged as a significant problem that attracted several researchers. The search for green and eco-friendly adsorbents has been a never-ending task in environmental protection to overcome this issue. Herein, almond shells (AS) were used as an adsorbent to remove methyl orange (MO) from aqueous solutions. The AS was characterized using several techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR). Adsorption experiments were carried out under different pH, temperature, and AS particle size conditions. Kinetic and isothermal studies revealed that MO adsorption on the AS reached equilibrium at 90 min, following the pseudo-second-order (PSO) kinetic model. The Langmuir adsorption isotherm was found the suitable adsorption model for MO adsorption on AS, showing a maximum adsorption capacity of 15.63 mg/g. Thermodynamic parameters such as the change in standard enthalpy (ΔH°), the change in standard entropy (ΔS°), and the change in standard free energy (ΔG°) indicated that the MO dye adsorption process is non-spontaneous, endothermic, and physical, which was further confirmed from FTIR analysis of AS samples after adsorption. The contaminated sludge was converted into biochar by slow pyrolysis at a temperature of 400 °C for 2 h. Biochar has been exploited for the manufacture of combustible briquettes. |
| first_indexed | 2024-03-10T00:05:13Z |
| format | Article |
| id | doaj.art-571d0d31a00447808a096ccde5125273 |
| institution | Directory Open Access Journal |
| issn | 2504-5377 |
| language | English |
| last_indexed | 2024-03-10T00:05:13Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Colloids and Interfaces |
| spelling | doaj.art-571d0d31a00447808a096ccde51252732023-11-23T16:09:09ZengMDPI AGColloids and Interfaces2504-53772022-04-01622210.3390/colloids6020022Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible BriquettesAbderrahim Kali0Abdelouahed Amar1Ilyasse Loulidi2Chaimaa Hadey3Maria Jabri4Awad A. Alrashdi5Hassane Lgaz6Mohamed Sadoq7Abderrazek El-kordy8Fatima Boukhlifi9Laboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoChemistry Department, Umm Al-Qura University, Al-Qunfudah University College, Al Qunfudah 21962, Saudi ArabiaDepartment of Architectural Engineering, Hanyang University-ERICA, 1271 Sa 3-dong, Sangrok-gu, Ansan 426791, KoreaLaboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratoire des Matériaux, Membranes et Faculty of Sciences, Moulay Ismail University, BP 11, 201-Zitoune, Meknes 50070, MoroccoLaboratory of Biology and Chemistry Applied to the Environment, URL-CNRST-N°13, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoIn recent years, the removal of dyes has emerged as a significant problem that attracted several researchers. The search for green and eco-friendly adsorbents has been a never-ending task in environmental protection to overcome this issue. Herein, almond shells (AS) were used as an adsorbent to remove methyl orange (MO) from aqueous solutions. The AS was characterized using several techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR). Adsorption experiments were carried out under different pH, temperature, and AS particle size conditions. Kinetic and isothermal studies revealed that MO adsorption on the AS reached equilibrium at 90 min, following the pseudo-second-order (PSO) kinetic model. The Langmuir adsorption isotherm was found the suitable adsorption model for MO adsorption on AS, showing a maximum adsorption capacity of 15.63 mg/g. Thermodynamic parameters such as the change in standard enthalpy (ΔH°), the change in standard entropy (ΔS°), and the change in standard free energy (ΔG°) indicated that the MO dye adsorption process is non-spontaneous, endothermic, and physical, which was further confirmed from FTIR analysis of AS samples after adsorption. The contaminated sludge was converted into biochar by slow pyrolysis at a temperature of 400 °C for 2 h. Biochar has been exploited for the manufacture of combustible briquettes.https://www.mdpi.com/2504-5377/6/2/22adsorptiondye removalmethyl orangealmond shellbiocharcombustible briquettes |
| spellingShingle | Abderrahim Kali Abdelouahed Amar Ilyasse Loulidi Chaimaa Hadey Maria Jabri Awad A. Alrashdi Hassane Lgaz Mohamed Sadoq Abderrazek El-kordy Fatima Boukhlifi Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes Colloids and Interfaces adsorption dye removal methyl orange almond shell biochar combustible briquettes |
| title | Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes |
| title_full | Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes |
| title_fullStr | Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes |
| title_full_unstemmed | Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes |
| title_short | Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes |
| title_sort | efficient adsorption removal of an anionic azo dye by lignocellulosic waste material and sludge recycling into combustible briquettes |
| topic | adsorption dye removal methyl orange almond shell biochar combustible briquettes |
| url | https://www.mdpi.com/2504-5377/6/2/22 |
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