New highly hydrated cellulose microfibrils with a tendril helical morphology extracted from agro-waste material: application to removal of dyes from waste water

Achaby, Mounir El; Fayoud, N.; Figueroa-Espinoza, María-Cruz; Youcef, Hicham Ben; Aboulkas, A.

doi:10.1039/c7ra10239a

Cited by 30 publications

(10 citation statements)

References 53 publications

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“…The intra-particle diffusion model was used to study the mechanisms of adsorption and rate control. 49 Because C ≠ 0, the adsorption process may involve various adsorption mechanisms. 49 The first linear part of the curve represents the surface adsorption, whereas the second linear portion is the slow diffusion of the adsorbate from the surface to the inner holes.…”

Section: Resultsmentioning

confidence: 99%

“… 49 Because C ≠ 0, the adsorption process may involve various adsorption mechanisms. 49 The first linear part of the curve represents the surface adsorption, whereas the second linear portion is the slow diffusion of the adsorbate from the surface to the inner holes. 47 It can be seen that the surface adsorption is fast and is the main step in low concentrations of MB solution.…”

Section: Resultsmentioning

confidence: 99%

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Removal of methylene blue from aqueous solution by cattle manure-derived low temperature biochar

et al. 2018

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Biochar is a low cost and renewable adsorbent which can be used to remove dye from wastewater. Cattle manure-derived low temperature biochar (CMB) was studied to remove methylene blue (MB) from aqueous solution in this paper. The effect of factors including initial concentration of MB, dosage, contact time, and pH on the adsorption properties of MB onto biochar were studied. Characterization of the CMB and MB adsorbed on CMB was performed using techniques including BET, FTIR and SEM. The adsorption isotherm, kinetics, thermodynamics and mechanism were also studied. The results showed the equilibrium data were well fitted to the Langmuir isotherm model, and the saturation adsorption capacity of CMB 200 was 241.99 mg g À1 . Pseudo-second order kinetics was the most suitable model for describing the adsorption of MB onto biochar. The adsorption thermodynamics of MB on biochar showed that the adsorption was a spontaneous and endothermic process. Through zeta potential measurement, Boehm titration, cation exchange, deashing and esterification experiments, the importance of ash to adsorption was verified, as well as the adsorption mechanism. The adsorption mechanism of MB on CMB 200 involved cation exchange, electrostatic interaction, hydrogen bonding, physical effects and others. This work shows that CMB 200 holds promise to act as an effective adsorbent to remove MB in wastewater.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Removal of methylene blue from aqueous solution by cattle manure-derived low temperature biochar

et al. 2018

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“…The band located at 1254 cm −1 was attributed to the O-C-O segment of the ester group. Finally, the band at 1019 cm −1 was assigned to alcoholic groups(El Achaby et al 2018).…”

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confidence: 99%

Low-cost Posidonia oceanica bio-adsorbent for efficient removal of antibiotic oxytetracycline from water

Ferchichi

Amdouni

Chevalier

et al. 2022

Environ Sci Pollut Res

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The presence of antibiotics as micro-contaminants in the water and aqueous environments is a health concern to humans and the ecosystem. Therefore, their elimination by adsorption to available and cheap materials in water treatment plants is a research topic of high relevance. The present paper reports on the adsorption behavior of Oxytetracycline on a bio-adsorbent prepared from Posidonia Oceanica; an abundant Mediterranean biomass.Characterization of the pretreated Posidonia biomaterial was achieved using several analyses such as Boehm acidbase titration method, pHPZC determination and analysis techniques (FTIR, 13 C CP-MAS NMR, optical microscopy and TGA). The pHPZC occurred around pH 2.11. Posidonia biomaterial showed a fast and high uptake rate throughout the adsorption process, which is a definite advantage for analytical applications such as water decontamination. The experimental kinetic data fitted very rightly the pseudo-second-order kinetic model and the equilibrium uptake can adopt the bi-Langmuir isotherm model for all studied pH values which assumes adsorptions at the two localized sites. Maximum adsorption capacities of 11.8 mg•g −1 and 4.4 mg•g −1 for the two adsorption sites are reached at pH 6. The oxytetracycline adsorption process onto Posidonia bio-adsorbent is spontaneous (ΔadsG 0 < 0), exothermic (ΔadsH 0 < 0), and entropically favorable (ΔadsS 0 > 0). The effect of pH on adsorption behavior and the thermodynamic parameters of adsorption are consistent with a possible origin of adsorption of Oxytetracycline by means of hydrogen bonding interactions between surface hydroxyl and phenolic groups of the biomaterial and Oxytetracycline. The proposed green and environmentally friendly biomaterial offers potential benefits as a bio-adsorbent in the remediation of aquatic environments contaminated by various organic materials.

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“…This concept aligns with the principles of a circular and sustainable economy, aiming to maximize the value obtained from biomass resources while minimizing waste generation. By integrating multiple conversion processes and producing a range of valuable products (value-added chemicals, bioenergy, and bio-based products), biorefineries offer a promising pathway towards a more sustainable and resource-efficient future [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Intermediate pyrolysis of Ficus nitida wood in a fixed-bed reactor: effect of pyrolysis parameters on bio-oil and bio-char yields and properties

Tabal,

Belyazid,

Dahman

et al. 2024

Comptes Rendus. Chimie

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New highly hydrated cellulose microfibrils with a tendril helical morphology extracted from agro-waste material: application to removal of dyes from waste water

Abstract: Cocoa bean shells are a by-product of the cocoa bean processing industry. Highly hydrated cellulose microfibrils with special morphology were obtained from this by-product and used as adsorbent material for waste water treatment.

Cited by 30 publications

References 53 publications

Removal of methylene blue from aqueous solution by cattle manure-derived low temperature biochar

Removal of methylene blue from aqueous solution by cattle manure-derived low temperature biochar

Low-cost Posidonia oceanica bio-adsorbent for efficient removal of antibiotic oxytetracycline from water

Intermediate pyrolysis of Ficus nitida wood in a fixed-bed reactor: effect of pyrolysis parameters on bio-oil and bio-char yields and properties

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