Effect of acid and alkali treatments of a forest waste, Pinus brutia cones, on adsorption efficiency of methyl green
| Autor: | Abdallah Bouguettoucha, Abdelbaki Reffas, Khalil Guediri, Abdeltif Amrane, Derradji Chebli, Tahar Mekhalif |
|---|---|
| Přispěvatelé: | Département de Génie des Procédés, Université Ferhat-Abbas Sétif 1 [Sétif] (UFAS1), Laboratoire de Génie des Procédés Chimiques (LGPC), Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
aqueous-solution
Polymers and Plastics Ionic bonding 02 engineering and technology 010501 environmental sciences 01 natural sciences symbols.namesake Adsorption Organic chemistry [CHIM]Chemical Sciences equilibrium isotherm Physical and Theoretical Chemistry congo red 0105 earth and related environmental sciences parameters Aqueous solution dye blue biomass Chemistry removal Biosorption Langmuir adsorption model Sorption 021001 nanoscience & nanotechnology Alkali metal Surfaces Coatings and Films Ionic strength kinetics symbols 0210 nano-technology Nuclear chemistry biosorption |
| Zdroj: | Journal of Dispersion Science and Technology Journal of Dispersion Science and Technology, Taylor & Francis, 2017, 38 (4), pp.463--471. ⟨10.1080/01932691.2016.1178585⟩ Journal of Dispersion Science and Technology, 2017, 38 (4), pp.463--471. ⟨10.1080/01932691.2016.1178585⟩ |
| ISSN: | 0193-2691 1532-2351 |
| DOI: | 10.1080/01932691.2016.1178585⟩ |
| Popis: | International audience; The removal of methyl green (MG) dye from aqueous solutions using acid- or alkali-treated Pinus brutia cones (PBH and PBN) waste was investigated in this work. Adsorption removal of MG was conducted at natural pH, namely, 4.5 +/- 0.10 for PBH and near 4.8 +/- 0.10 for PBN. The pseudo-second-order model appeared to be the most appropriate to describe the adsorption process of MG on both PBN and PBH with a correlation coefficient R-2>0.999. Among the tested isotherm models, the Langmuir isotherm was found to be the most relevant to describe MG sorption onto modified P. brutia cones with a correlation factor R-2>0.999. The ionic strength (presence of other ions: Cl-, Na+, and SO42-) also influences the adsorption due to the change in the surface properties; it had a negative impact on the adsorption of MG on these two supports. A reduction of 68.5% of the adsorption capacity for an equilibrium dye concentration Ce of 30mg/L was found for the PBH; while with PBN no significant influence of the ionic strength on adsorption was observed, especially in the presence of NaCl for dye concentrations superior to 120mgL(-1). |
| Databáze: | OpenAIRE |
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