Elaboration and characterization of chitosan/banana peel biocomposite for the removal of dyes from wastewater
| Autor: | Rachida Zaghdoudi, Abdelaziz Lallam, Chahrazed Djilani, Pierre Magri, Bachir Bouchekima, Fayçal Djazi |
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| Přispěvatelé: | Université 20 Août 1955 Skikda, Laboratoire de synthèse organique (DCSO), École polytechnique (X)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire de Recherches sur la Physico-Chimie des Surfaces et Interfaces (LRPCSI), Laboratoire de Physique et Mécanique Textiles (LPMT), ENSITM-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Énergies Nouvelles et Renouvelables dans les Zones Arides et Sahariennes Lenreza, Université Kasdi Merbah Ouargla |
| Rok vydání: | 2019 |
| Předmět: |
Langmuir
Chemistry Banana peel [CHIM.MATE]Chemical Sciences/Material chemistry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 6. Clean water Chitosan chemistry.chemical_compound Adsorption Ionic strength 0103 physical sciences [CHIM]Chemical Sciences Freundlich equation Biocomposite Fourier transform infrared spectroscopy 0210 nano-technology 010301 acoustics Nuclear chemistry |
| Zdroj: | Desalination and Water Treatment Desalination and Water Treatment, FHF, 2019, 151, pp.189-198. ⟨10.5004/dwt.2019.23887⟩ |
| ISSN: | 1944-3994 1944-3986 |
| Popis: | International audience; The objective of this study is to compare the performances of chitosan/banana peel (CS/BP) biocomposite with chitosan (CS). CS, BP and CS/BP composite biomaterials were characterized by using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermal gravimetric analyses (TGA). Their specific adsorption characteristics were assessed by using a basic dye (Methylene Blue [MB]) as a model adsorbate. The influence of various experimental factors such as contact time, initial dye concentration, pH of dye solution, ionic strength and inorganic salts was investigated. The adsorption of MB from aqueous solutions was investigated using a CS/BP biocomposite and CS as adsorbents. The materials are capable of removing color from wastewater, their color removal capacity for CS is 81% and CS/banana peel biocomposite is 96% at normal pH and temperature conditions. The equilibrium times founded correspond to 150 min for CS and 100 min for CS/banana peel biocomposite. The kinetics of adsorption suggested a pseudo-second-order model fits better than pseudo-first-order model and the equilibrium isotherm fitted the Langmuir and Freundlich models. The results of this study will be useful for future scale-up using this composite biomaterial as a low-cost adsorbent for the removal of cationic dyes. |
| Databáze: | OpenAIRE |
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