Adsorptive properties investigation of natural sand as adsorbent for methylene blue removal from contaminated water

Amjlef, Asma; Khrach, Said; Fakir, Abdellah Ait El; Farsad, Salaheddine; Et-Taleb, Saïd; Alem, Noureddine El

doi:10.1007/s41204-021-00119-y

Cited by 21 publications

(18 citation statements)

References 54 publications

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“…Because the addition of garnet to carbon may have catalytic capabilities in adsorption process due to the iron and other metals present, including manganese, magnesium, and aluminum, etc. [35,37].…”

Section: Figures (2amentioning

confidence: 99%

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Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

ElKholy

Yahia²,

El-Nawawy

et al. 2022

Preprint

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The present study reports the feasibility of the synthesis of a novel porous activated carbon (OS400) composite adsorbent prepared from olive stone and impregnated with garnet (GA) types of black sand minerals. The Activated Carbon/ garnet composite (OSMG) was applied for the sorption of macromolecular organic dye. The structural characteristics of the synthesized composite were evaluated by Brunauer–Emmett–Teller (BET), N2 adsorption/desorption measurements, Scanning Electron Microscopy equipped with Energy Dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), and a Fourier transform infrared spectrometer (FT-IR). The specific surface area of (GA), (OS400), and (OSMG) were 5.157 m2.g− 1, 1489.598 m2.g− 1, and 546.392 m2.g− 1, respectively. The high specific surface area and effective active centers of the new composite promoted the adsorption of methylene blue (MB). The experiments were carried out under various conditions such as contact time, initial concentration of adsorbate, adsorbent dosage, pH, and temperatures. The equilibrium adsorption data were evaluated using the Langmuir and Freundlich isotherm models. The results display that, the adsorption isotherm had an excellent fitting to the Freundlich model. Furthermore, the data obtained from adsorption kinetic models showed that the pseudo-second-order model more agreeing for describing the (MB) adsorption reaction, suggesting a chemisorption mechanism. The values of thermodynamic parameters indicate that methylene blue dye adsorption onto the (GA) adsorbents through an endothermic reaction, while exothermic sorption of MB onto (OS400) and (OSMG), with a non-spontaneous process.

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Section: Figures (2amentioning

confidence: 99%

“…Natural sand was chosen as an adsorbent due to its quantity, efficiency, and nontoxicity. Several articles have employed various types of sand, including Sahara desert sand, sea sand, quartz sand, hematite sand, and hematite and titaniferous sand [35].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

ElKholy

Yahia²,

El-Nawawy

et al. 2022

Preprint

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“…Thereafter, the OG dye removal rate becomes slower until attaining the equilibrium adsorption after 180 min, as a result of the reduction in the number of sulfonate groups (-SO 3 Na)-containing OG dye-binding sites. Pseudo-rst-order (PFO) and pseudo second-order (PSO) kinetic models were empolyed to assess the reaction kinetics (Zheng et al 2012;Amjlef et al 2021). The nonlinear expressions and the tting parameters data of PFO and PSO kinetic models are presented in Table 1 and Fig.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Engineering of Calcium Alginate- PANI@Sawdust Wood hydrogel Bio-beads for the Removal of the Sulfonate Groups-Containing Orange G dye from Aqueous Solution

Imgharn

Aarab

Hsini

et al. 2021

Preprint

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The aim of this work is to investigate the adsorption performance of orange G (OG) dye from aqueous solutions employing PANI@sawdust biocomposite enrobed by calcium-alginate biobeads (Alg-PANI@SD). The as-prepared adsorbent was characterized by scanning-electron-microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and Fourier transforms infrared (FT-IR) spectroscopy, and used to remove Orange G dye from water. batch tests were performed as a function of adsorbent dosage, pH, contact time, interfering ions and initial OG dye concentration. Experimental results show that the kinetic model of pseudo-first-order (PFO) and Freundlich isotherm provided a good fitting of the whole experimental data. The results revealed that the as-prepared tricomposite Alg-PANI@SD, has the potential to be applied as a low-cost adsorbent for the adsorption of OG dye from aqueous media.

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“…The use of cheap and available materials, such as silica gel [ 36 ], silica sand [ 37 ] and eggshells [ 38 ], has been studied alone in cationic dye removal but not in combination.…”

Section: Introductionmentioning

confidence: 99%

Removal of Methylene Blue from Aqueous Solution by Mixture of Reused Silica Gel Desiccant and Natural Sand or Eggshell Waste

et al. 2023

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The purpose of this work was to develop, characterize and test new low-cost materials suitable for removing methylene blue dye from water and wastewater by adsorption. The solid materials consisted of silica gel powder (SG), silica gel mixed with eggshell powder (SG-ES) and a mixture of silica gel with sand from the western Iraqi desert (SG-SI). The samples were milled by using an electrical mixer and a ball mill, followed by a drying step. In addition, desert sand was acid-treated in order to remove impurities. The structure and chemical composition of the samples were investigated by X-ray diffraction (XRD), a scanning electron microscopy technique equipped with an energy-dispersive X-ray spectrometer (SEM-EDX), a low-temperature nitrogen adsorption (BET) technique, thermo-analytical (TG/TGA) measurements and Fourier-transformed infrared spectroscopy (FTIR). The previously mentioned materials were tested to remove methylene blue from an aqueous solution. The adsorption experiments were monitored by ultraviolet–visible (UV-Vis) spectrophotometry and showed that SG and SG-ES gave promising results for the methylene blue removal from water. After 40 min of treatment of the aqueous solution containing 20 mg/L of MB at room temperature, the tested SG, SG-ES and SG-SI materials were found to have 86%, 80% and 57% dye adsorption efficiency, respectively. Taking into consideration not only the adsorption activity of the studied material but their availability, cost and concepts of cleaner production and waste minimization, the developed silica gel with eggshell can be considered as a good, cost-effective alternative to commercially available activated-carbon-based adsorbents. Different kinetic and isotherm models were fitted to the experimental results. A pseudo-second-kinetics-order model revealed high correlation fitting, while the Freundlich model was found to appropriately describe the adsorption isotherm. The thermal stability during the possible regeneration process of the SG-ES adsorbent mixture and its interaction mechanism with cationic dye was discussed.

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Adsorptive properties investigation of natural sand as adsorbent for methylene blue removal from contaminated water

Cited by 21 publications

References 54 publications

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

Engineering of Calcium Alginate- PANI@Sawdust Wood hydrogel Bio-beads for the Removal of the Sulfonate Groups-Containing Orange G dye from Aqueous Solution

Removal of Methylene Blue from Aqueous Solution by Mixture of Reused Silica Gel Desiccant and Natural Sand or Eggshell Waste

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