Highly efficient activated carbon from Glebionis coronaria L. biomass: Optimization of preparation conditions and heavy metals removal using experimental design approach

Tounsadi, Hanane; Khalidi, A.; Machrouhi, A.; Farnane, M.; Elmoubarki, R.; Elhalil, A.; Sadiq, M.; Barka, Noureddine

doi:10.1016/j.jece.2016.10.020

Cited by 66 publications

(22 citation statements)

References 53 publications

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“…The nitrogen adsorption-desorption BET isotherm of CPLH + is categorized as a Type IV isotherm ( Figure 1B), indicating the presence of mesopores [34]. The BET surface area and the pore volume of the CPH + particles were determined as 24 m 2 • g −1 , and 0.042 cm 3 • g −1 ( Figure 1A). The CS-based sorbents have a well-patterned morphology ( Figure 1C) with porous channels unidirectionally arranged with an average distance between them of about 27 µm for CGCS and of about 18 µm for CGCS_CPLH + .…”

Section: Resultsmentioning

confidence: 99%

“…Various sorbents including activated carbon [3], carbon nanotubes [4], organic ion exchangers [5], zeolites [6][7][8][9], and polysaccharide-based hydrogels [10][11][12][13][14][15][16] have been tested for the treatment of HMIs-containing wastewaters. Among them, polysaccharides, such as chitosan (CS) [10][11][12], salecan [13], pullulan [14], alginate [15], and pectin [16], as biosorbents, are preferred because they possess several advantages such as high abundance, biodegradability, and nontoxicity, particularly suited for the removal of HMIs from polluted tap or groundwater.…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

Humelnicu

Drăgan²,

Ignat

et al. 2020

Molecules

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Materials coming from renewable resources have drawn recently an increased attention in various applications as an eco-friendly alternative in the synthesis of novel functional materials. Polysaccharides, with their prominent representative – chitosan (CS), are well-known for their sorption properties, being able to remove metal ions from dilute solutions either by electrostatic interactions or chelation. In this context, we proposed here a comparative study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ metal ions removal from industrial wastewaters by CS-based composite cryogels using batch technique. The composite cryogels consisting of CS embedding a natural zeolite, namely clinoptilolite, were synthesized by cryogelation, and their sorption performance were compared to those of CS cryogels and of acid-activated zeolite. A deeper analysis of thermodynamics and kinetics sorption data was performed to get insights into the sorption mechanism of all metal ions onto sorbents. Based on the optimized sorption conditions, the removal of the above-mentioned ions from aqueous solutions by the composite sorbent using dynamic technique was also evaluated.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

Humelnicu

Drăgan²,

Ignat

et al. 2020

Molecules

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“…Esto debido a que su área superficial porosa puede ir dese los 500 hasta los 1500 m 2 /g, así como la presencia de un amplio espectro de superficie funcional que la hace accesible a diferentes reactivos [69], [70]. Usualmente los adsorbentes de carbono se originan a partir de materiales carboneos como las biomasas, lignito y el propio carbón entre otros, donde el carbón es el más usado en la producción de carbón activado, sin embargo fuentes de biomasa más novedosas como el caso de la Glebionis Coronaria L. son usadas en la producción de carbón activado para la remoción de iones metálicos [71].…”

Section: ) Carbón Activadounclassified

Contaminación del agua por metales pesados, métodos de análisis y tecnologías de remoción. Una revisión

et al. 2020

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Los sistemas de producción industrial actuales usan metales pesados para la extracción de un material o como elemento en la refinación de un producto en particular lo que en principio resulta en la obtención del producto deseado con relativos bajos costos de producción. Sin embargo, usar estos metales presenta un grave problema a nivel ambiental debido a sus altos niveles de toxicidad para los organismos con los que interactúen una vez son descargados. Por tanto, se han desarrollado diversos métodos para tratar con estos metales una vez están en el agua y los métodos para analizarlos. Se realizó una búsqueda amplia y actualizada de las fuentes, efectos y toxicidad en los seres vivos, métodos de análisis y las diversas técnicas de tratamiento existentes para metales pesados. Como resultado el investigador estará más preparado al tener información actual sobre los tratamientos a tener en cuenta en la manipulación de metales pesados.

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“…Among these, adsorption is considered a simple and efficient technique to remove HMIs from wastewaters [8][9][10][11][12]. A large variety of sorbent materials, such as metal oxides/hydroxides [13,14], zeolites [15,16], commercial or synthetic activated carbon [17,18], biomass [19], synthetic organic supports [6,8,9], and unmodified or functionalized polysaccharides (chitosan, salecan, pullulan, alginate) [20][21][22][23][24][25][26][27][28][29] have been reported to remove HMIs from contaminated waters.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Copper(II), Cobalt(II) and Iron(III) Sorption in Binary and Ternary Systems by Chitosan-Based Composite Sponges Obtained by Ice-Segregation Approach

Dinu¹,

Humelnicu

Lazăr³

2021

Gels

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With the intensive industrial activity worldwide, water pollution by heavy metal ions (HMIs) has become a serious issue that requires strict and careful monitoring, as they are extremely toxic and can cause serious hazards to the environment and human health. Thus, the effective and efficient removal of HMIs still remains a challenge that needs to be solved. In this context, copper(II), cobalt(II) and iron(III) sorption by chitosan (CS)-based composite sponges was systematically investigated in binary and ternary systems. The composites sponges, formed into beads, consisting of ethylenediaminetetraacetic acid (EDTA)- or diethylenetriaminepentaacetic acid (DTPA)-functionalized CS, entrapping a natural zeolite (Z), were prepared through an ice-segregation technique. The HMI sorption performance of these cryogenically structured composite materials was assessed through batch experiments. The HMI sorption capacities of CSZ-EDTA and CSZ-DTPA composite sponges were compared to those of unmodified sorbents. The Fe(III) ions were mainly taken up when they were in two-component mixtures with Co(II) ions at pH 4, whereas Cu(II) ions were preferred when they were in two-component mixtures with Co(II) ions at pH 6. The recycling studies indicated almost unchanged removal efficiency for all CS-based composite sorbents even after the fifth cycle of sorption/desorption, supporting their remarkable chemical stability and recommending them for the treatment of HMI-containing wastewaters.

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Highly efficient activated carbon from Glebionis coronaria L. biomass: Optimization of preparation conditions and heavy metals removal using experimental design approach

Cited by 66 publications

References 53 publications

A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

A Comparative Study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels

Contaminación del agua por metales pesados, métodos de análisis y tecnologías de remoción. Una revisión

Analysis of Copper(II), Cobalt(II) and Iron(III) Sorption in Binary and Ternary Systems by Chitosan-Based Composite Sponges Obtained by Ice-Segregation Approach

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