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Your search keyword '"felt"' showing total 3 results
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3 results on '"felt"'

1. Biosorbents from Plant Fibers of Hemp and Flax for Metal Removal: Comparison of Their Biosorption Properties

Author

Chiara Mongioví, Nadia Morin-Crini, Dario Lacalamita, Corina Bradu, Marina Raschetti, Vincent Placet, Ana Rita Lado Ribeiro, Aleksandra Ivanovska, Mirjana Kostić, and Grégorio Crini

Subjects
lignocellulosic fiber, flax, hemp, felt, biosorption, metals, Organic chemistry, QD241-441
Abstract

Lignocellulosic fibers extracted from plants are considered an interesting raw material for environmentally friendly products with multiple applications. This work investigated the feasibility of using hemp- and flax-based materials in the form of felts as biosorbents for the removal of metals present in aqueous solutions. Biosorption of Al, Cd, Co, Cu, Mn, Ni and Zn from a single solution by the two lignocellulosic-based felts was examined using a batch mode. The parameters studied were initial metal concentration, adsorbent dosage, contact time, and pH. In controlled conditions, the results showed that: (i) the flax-based felt had higher biosorption capacities with respect to the metals studied than the hemp-based felt; (ii) the highest removal efficiency was always obtained for Cu ions, and the following order of Cu > Cd > Zn > Ni > Co > Al > Mn was found for both examined biosorbents; (iii) the process was rapid and 10 min were sufficient to attain the equilibrium; (iv) the efficiency improved with the increase of the adsorbent dosage; and (v) the biosorption capacities were independent of pH between 4 and 6. Based on the obtained results, it can be considered that plant-based felts are new, efficient materials for metal removal.

Published
2021
Full Text
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2. Biosorbents from Plant Fibers of Hemp and Flax for Metal Removal: Comparison of Their Biosorption Properties

Author

Mongiovi, Chiara, Morin-Crini, Nadia, Lacalamita, Dario, Bradu, Corina, Raschetti, Marina, Placet, Vincent, Ribeiro, Ana Rita Lado, Ivanovska, Aleksandra, Kostić, Mirjana, Crini, Gregorio, Mongiovi, Chiara, Morin-Crini, Nadia, Lacalamita, Dario, Bradu, Corina, Raschetti, Marina, Placet, Vincent, Ribeiro, Ana Rita Lado, Ivanovska, Aleksandra, Kostić, Mirjana, and Crini, Gregorio

Abstract

Lignocellulosic fibers extracted from plants are considered an interesting raw material for environmentally friendly products with multiple applications. This work investigated the feasibility of using hemp- and flax-based materials in the form of felts as biosorbents for the removal of metals present in aqueous solutions. Biosorption of Al, Cd, Co, Cu, Mn, Ni and Zn from a single solution by the two lignocellulosic-based felts was examined using a batch mode. The parameters studied were initial metal concentration, adsorbent dosage, contact time, and pH. In controlled conditions, the results showed that: (i) the flax-based felt had higher biosorption capacities with respect to the metals studied than the hemp-based felt; (ii) the highest removal efficiency was always obtained for Cu ions, and the following order of Cu > Cd > Zn > Ni > Co > Al > Mn was found for both examined biosorbents; (iii) the process was rapid and 10 min were sufficient to attain the equilibrium; (iv) the efficiency improved with the increase of the adsorbent dosage; and (v) the biosorption capacities were independent of pH between 4 and 6. Based on the obtained results, it can be considered that plant-based felts are new, efficient materials for metal removal.

Published
2021

3. Biosorbents from Plant Fibers of Hemp and Flax for Metal Removal: Comparison of Their Biosorption Properties

Author

Grégorio Crini, Chiara Mongioví, Aleksandra Ivanovska, Dario Lacalamita, Mirjana Kostic, Nadia Morin-Crini, Ana R. Ribeiro, Vincent Placet, Corina Bradu, Marina Raschetti, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)

Subjects
Contact time, flax, Pharmaceutical Science, metals, Organic chemistry, 02 engineering and technology, 010501 environmental sciences, Raw material, 01 natural sciences, Lignin, Article, Analytical Chemistry, Water Purification, Metal, felt, Adsorption, QD241-441, Metals, Heavy, Drug Discovery, [CHIM]Chemical Sciences, Physical and Theoretical Chemistry, 0105 earth and related environmental sciences, Cannabis, Aqueous solution, Chemistry, Biosorption, Multiple applications, hemp, 021001 nanoscience & nanotechnology, Environmentally friendly, Chemistry (miscellaneous), visual_art, lignocellulosic fiber, visual_art.visual_art_medium, Molecular Medicine, 0210 nano-technology, Water Pollutants, Chemical, Nuclear chemistry, biosorption
Abstract

Lignocellulosic fibers extracted from plants are considered an interesting raw material for environmentally friendly products with multiple applications. This work investigated the feasibility of using hemp- and flax-based materials in the form of felts as biosorbents for the removal of metals present in aqueous solutions. Biosorption of Al, Cd, Co, Cu, Mn, Ni and Zn from a single solution by the two lignocellulosic-based felts was examined using a batch mode. The parameters studied were initial metal concentration, adsorbent dosage, contact time, and pH. In controlled conditions, the results showed that: (i) the flax-based felt had higher biosorption capacities with respect to the metals studied than the hemp-based felt, (ii) the highest removal efficiency was always obtained for Cu ions, and the following order of Cu &gt, Cd &gt, Zn &gt, Ni &gt, Co &gt, Al &gt, Mn was found for both examined biosorbents, (iii) the process was rapid and 10 min were sufficient to attain the equilibrium, (iv) the efficiency improved with the increase of the adsorbent dosage, and (v) the biosorption capacities were independent of pH between 4 and 6. Based on the obtained results, it can be considered that plant-based felts are new, efficient materials for metal removal.

Published
2021
Full Text
View/download PDF

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