Adsorption ability of activated carbons from Phoenix dactylifera rachis and Ziziphus jujube stones for the removal of commercial dye and the treatment of dyestuff wastewater

Daoud, Mounir; Benturki, Oumessaâd; Girods, Pierre; Debenath, André; Fontana, Sébastien

doi:10.1016/j.microc.2019.05.022

Cited by 74 publications

(20 citation statements)

References 65 publications

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“…Numerous types of materials such as activated carbon [ 5 ], zeolites [ 6 ], lignocellulosic materials [ 7 ], clays [ 8 ], double-layered hydroxides [ 9 ], metal-organic networks (MOFs) [ 10 ], magnetic materials [ 11 ], metal oxides [ 12 ], graphene oxide [ 13 ], silica [ 14 ], polymeric materials [ 15 , 16 ], carbon nanotubes [ 17 ], agricultural wastes [ 18 ], chitosan [ 19 ], food-processing by-products [ 20 ], clays [ 21 ], dendritic polymers [ 22 ], and hydroxyapatite based materials [ 23 ] were applied as dye adsorbents in synthetic aqueous solutions and industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of CoFe2O4 Nanoparticles and CoFe2O4-Chitosan Composite for Congo Red and Methyl Orange Removal by Adsorption

et al. 2021

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(1) Background: A comparative research study to remove Congo Red (CR) and Methyl Orange (MO) from single and binary solutions by adsorption onto cobalt ferrite (CoFe2O4) and cobalt ferrite–chitosan composite (CoFe2O4-Chit) prepared by a simple coprecipitation method has been performed. (2) Methods: Structural, textural, morphology, and magnetic properties of the obtained magnetic materials were examined by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, N2 adsorption–desorption analysis, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and magnetic measurements. The optimal operating conditions of the CR and MO removal processes were established in batch experiments. The mathematical models used to describe the processes at equilibrium were Freundlich and Langmuir adsorption isotherms. (3) Results: Cobalt ferrite–chitosan composite has a lower specific surface area (SBET) and consequently a lower adsorption capacity than cobalt ferrite. CoFe2O4 and CoFe2O4–Chit particles exhibited a superparamagnetic behavior which enabled their efficient magnetic separation after the adsorption process. The research indicates that CR and MO adsorption onto prepared magnetic materials takes place as monolayer onto a homogeneous surface. According to Langmuir isotherm model that best fits the experimental data, the maximum CR/MO adsorption capacity is 162.68/94.46 mg/g for CoFe2O4 and 15.60/66.18 mg/g for CoFe2O4–Chit in single solutions. The results of the kinetics study revealed that in single-component solutions, both pseudo-first-order and pseudo-second-order kinetics models represent well the adsorption process of CR/MO on both magnetic adsorbents. In binary solutions, adsorption of CR/MO on CoFe2O4 better follows the pseudo-second-order kinetics model, while the kinetic of CR/MO adsorption on CoFe2O4–Chit is similar to that of the dyes in single-component solutions. Acetone and ethanol were successfully used as desorbing agents. (4) Conclusions: Our study revealed that CoFe2O4 and CoFe2O4–Chit particles are good candidates for dye-contaminated wastewater remediation.

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Section: Introductionmentioning

confidence: 99%

Comparative Study of CoFe2O4 Nanoparticles and CoFe2O4-Chitosan Composite for Congo Red and Methyl Orange Removal by Adsorption

et al. 2021

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“…Among them, the adsorption method attracted extensive attention due to its advantages, such as easy operation, low cost, high efficiency, no secondary pollution, and easy industrialization [11]. Although some natural adsorbents and synthetic adsorbents showed a certain adsorption capacity for dyes [12][13][14][15][16][17][18], some drawbacks including low adsorption capacity, poor selectivity, and poor reusability still exist. Therefore, it is urgent to develop a novel adsorbent for the removal of MO from aquatic environments.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polyaniline/Emulsion Microsphere Composite for Efficient Adsorption of Organic Dyes

Liu

Song

et al. 2020

Polymers

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Surface-functionalized polymeric microspheres have wide applications in various areas. Herein, monodisperse poly(styrene–methyl methacrylate–acrylic acid) (PSMA) microspheres were prepared via emulsion polymerization. Polyaniline (PANI) was then coated on the PSMA surface via in situ polymerization, and a three-dimensional (3D) structured reticulate PANI/PSMA composite was, thus, obtained. The adsorption performance of the composite for organic dyes under different circumstances and the adsorption mechanism were studied. The obtained PANI/PSMA composite exhibited a high adsorption rate and adsorption capacity, as well as good adsorption selectivity toward methyl orange (MO). The adsorption process followed pseudo-second-order kinetics and the Langmuir isotherm. The maximum adsorption capacity for MO was 147.93 mg/g. After five cycles of adsorption–desorption, the removal rate remained higher than 90%, which indicated that the adsorbent has great recyclability. The adsorbent materials presented herein would be highly valuable for the removal of organic dyes from wastewater.

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“…Chemical process is now widely used because the activation of precursor takes place at a lower temperature than that of physical activation, and its yield is higher than the physical one 15,16 . In addition, chemical activation favors good porous structure of AC, while the type of activating agent used is very important in porous development during the activation process, particularly in lignocellulosic precursors 17,18 . The most commonly used chemical activating agents are phosphoric acid and zinc chloride.…”

Section: Introductionmentioning

confidence: 99%

“…15,16 In addition, chemical activation favors good porous structure of AC, while the type of activating agent used is very important in porous development during the activation process, particularly in lignocellulosic precursors. 17,18 The most commonly used chemical activating agents are phosphoric acid and zinc chloride.…”

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confidence: 99%

High adsorption capacity of nitrobenzene from aqueous solution using activated carbons prepared from vegetable waste

Kecira

Benturki

et al. 2020

Env Prog and Sustain Energy

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The present study reports the preparation of chemically activated carbons (PAC and ZAC) from apricot stones using phosphoric acid and zinc chloride, respectively. The potential use of the prepared carbons, as adsorbents, and the effect of chemical activation on the surface properties and adsorptive mechanism of nitrobenzene (NB) were investigated. The physicochemical properties of the obtained materials were characterized by Nitrogen adsorption-desorption isotherms, Scanning Electron Microscope, FTIR Spectroscopy, EDX analysis, Boehm titration, and pH of zero charge. The results show that the prepared samples present high apparent surface areas (1,382 and 1,111 m 2 /g for PAC and ZAC, respectively) and pores volumes with the presence of various functional groups. It was found that pseudo-second model was the most suitable for the fitting of the experimental kinetic data and the intraparticle diffusion was not the unique rate-controlling stage. The adsorption isotherms were well described by the Langmuir and the Freundlich models. According to the Langmuir model, the maximum adsorption capacity of PAC and ZAC were about 476.2 and 490.2 mg/g, respectively. The thermodynamic parameters showed the spontaneity, the exothermic nature, and the decrease in the randomness of the adsorption of nitrobenzene. Chemical regeneration showed that the prepared samples could be used for four time desorption-adsorption cycles with good efficiency for NB removal, indicating that the prepared carbons could be used as a low-cost alternative to commercial activated carbon for the removal of nitrobenzene from wastewater.

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Adsorption ability of activated carbons from Phoenix dactylifera rachis and Ziziphus jujube stones for the removal of commercial dye and the treatment of dyestuff wastewater

Cited by 74 publications

References 65 publications

Comparative Study of CoFe2O4 Nanoparticles and CoFe2O4-Chitosan Composite for Congo Red and Methyl Orange Removal by Adsorption

Comparative Study of CoFe2O4 Nanoparticles and CoFe2O4-Chitosan Composite for Congo Red and Methyl Orange Removal by Adsorption

Preparation of Polyaniline/Emulsion Microsphere Composite for Efficient Adsorption of Organic Dyes

High adsorption capacity of nitrobenzene from aqueous solution using activated carbons prepared from vegetable waste

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