Adsorption of crystal violet on biomasses from pecan nutshell, para chestnut husk, araucaria bark and palm cactus: Experimental study and theoretical modeling via monolayer and double layer statistical physics models

Pang, Xuening; Sellaoui, Lotfi; Franco, Dison S.P.; Dotto, Guilherme L.; Georgin, Jordana; Bajahzar, Abdullah; Belmabrouk, Hafedh; Lamine, Abdelmottaleb Ben; Bonilla-Petriciolet, Adrián; Li, Zichao

doi:10.1016/j.cej.2019.122101

Cited by 152 publications

(45 citation statements)

References 37 publications

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“…Adsorption typically involves covalent bonding between the adsorbate and adsorbent, which could be reversed by certain conditions. The low cost, simple operation, flexibility, technical feasibility, and typical low waste generation are common characteristics of adsorption processes 19 . Conventionally, adsorption on activated carbon has been excessively used to treat dyes from wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, to ensure sustainability and eco-friendly methods of adsorption, alternatives to activated carbon are studied. Agricultural wastes and cellulosic biomass provide a great potential for wastewater remediation as substitutes for activated carbon in the adsorption technique 14 , 19 . Bio-composites prepared from agricultural wastes such as mango stones 22 , and peanut wastes 23 , have been proved to be efficient adsorbents for crystal violet dyes from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

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Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Al-Ghouti

Al-Absi

2020

Sci Rep

221

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In the current study, the mechanistic understanding of the adsorption isotherm and thermodynamic aspects of cationic methylene blue (MB) dye adsorption onto cellulosic olive stones biomass from wastewater were investigated. The batch adsorption of MB onto the olive stones (black and green olive stones) was tested at a variety of pH, dye concentrations, temperatures, and biomass particle sizes. The adsorption thermodynamics such as Gibbs free energy, enthalpy, and entropy changes were also calculated. Moreover, the desorption studies of MB from the spent olive stones were studied to explore the re-usability of the biomasses. The results revealed that under the optimum pH of 10, the maximum MB uptake was achieved i.e. 80.2% for the green olive stones and 70.9% for the black olive stones. The green olive stones were found to be more efficient in remediating higher MB concentrations from water than the black olive stones. The highest MB removal of the green olive stones was achieved at 600 ppm of MB, while the highest MB removal of the black olive stones was observed at 50 ppm of MB. Furthermore, for almost all the concentrations studied (50–1000 ppm), the MB adsorption was the highest at the temperature of 45 °C (P value < 0.05). It was shown by the Fourier transform infrared that the electrostatic interaction and hydrogen bonding were proposed as dominant adsorption mechanisms at basic and acidic pH, respectively. While the hydrophobic-hydrophobic interaction was a dominant mechanism at neutral pH. The thermodynamic studies revealed that the adsorption process was endothermic, spontaneous, and favorable. Moreover, the real wastewater experiment and the desorption studies showed that the green and black olive stones were a cost-effective and promising adsorbents for MB remediation from wastewater on account of their high adsorption and desorption removal capacities.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Al-Ghouti

Al-Absi

2020

Sci Rep

221

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“… 13 They are eco-friendly and abundantly available. 14 , 15 In a critical review by Charis et al, 16 it was found that waste generated from sawmills in Zimbabwe and South Africa amounted to about 70,000 tons per annum. Sawdust and shavings represent the most underutilized waste fractions, with heaps scattered all over the region and posing various ecological threats.…”

Section: Introductionmentioning

confidence: 99%

Sawdust-Based Cellulose Nanocrystals Incorporated with ZnO Nanoparticles as Efficient Adsorption Media in the Removal of Methylene Blue Dye

et al. 2020

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The continuous increase in the wastes generated from forestry, timber, and paper industries has engendered the need for their transformation into economically viable materials for the benefit of mankind. This study reports the preparation and application of sawdust-derived cellulose nanocrystals (CNC) incorporated with zinc oxide as a novel adsorbent for the removal of methylene blue (MB) from water. The CNC/ZnO nanocomposite was characterized using Fourier transform infrared, X-ray diffraction (XRD), and scanning electron microscopy. The amount of MB adsorbed was determined by a UV–vis spectrophotometer. The microscopic analysis revealed that the nanocomposite had a narrow particle size range and exhibited both spherical and rod-like morphologies. The XRD analysis of the nanocomposite showed characteristic high-intensity peaks in the range of 30–75° attributed to the presence of ZnO nanoparticles, which were responsible for the enhancement of the crystallinity of the nanocomposite. The results revealed a relationship between the MB removal efficiency and changes in solution pH, nanocomposite dosage, initial concentration, temperature, and reaction time. The adsorption equilibrium isotherm, measured in the temperature range of 25–45 °C and using a concentration of 20–100 mg/L, showed that the MB sorption followed the Langmuir isotherm with a maximum adsorption capacity of 64.93 mg/g. A pseudo-second-order kinetic model gave the best fit to the experimental data. Based on adsorption performance, the CNC/ZnO nanocomposite offers prospects for further research and application in amelioration of dye-containing effluent.

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“…As an alternative method, adsorption process in the treatment of dye-contaminated wastewaters can be used due to its simplicity, high efficiency, low costs, ease and flexibility of operation, easy desorption. In recent years, lots of novel adsorbents such as functionalized multiwalled carbon nanotubes [ 25 ], graphene oxide/clay nanocomposite [ 26 ], doped metal oxide [ 27 ] or derived from industrial solid wastes [ 28 ], agricultural solid wastes [ 29 , 30 ], biopolymers and their composites [ 31 , 32 , 33 ], sewage sludge [ 34 ], fly ash [ 35 ] have been reported in the literature. Although all the materials seem to be very promising, activated carbon is still the most common adsorbent for wastewaters treatment of in industrial plants contaminated with dyes.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Carbons of Well-Organized Structure in the Removal of Dyes from Aqueous Solutions

et al. 2021

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Mesoporous carbons with differentiated properties were synthesized by using the method of impregnation of mesoporous well-organized silicas. The obtained carbonaceous materials and microporous activated carbon were investigated by applying different methods in order to determine their structural, surface and adsorption properties towards selected dyes from aqueous solutions. In order to verify applicability of adsorbents for removing dyes the equilibrium and kinetic experimental data were measured and analyzed by applying various equations and models. The structural and acid-base properties of the investigated carbons were evaluated by Small-Angle X-ray Scattering (SAXS) technique, adsorption/desorption of nitrogen, potentiometric titration, and Transmission Electron Microscopy (TEM). The results of these techniques are complementary, indicating the type of porosity and structural ordering, e.g., the pore sizes determined from the SAXS data are in good agreement with those obtained from nitrogen sorption data. The SAXS and TEM data confirm the regularity of mesoporous carbon structure. The adsorption experiment, especially kinetic measurements, reveals the utility of mesoporous carbons in dye removing, taking into account not only the adsorption uptake but also the adsorption rate.

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Adsorption of crystal violet on biomasses from pecan nutshell, para chestnut husk, araucaria bark and palm cactus: Experimental study and theoretical modeling via monolayer and double layer statistical physics models

Cited by 152 publications

References 37 publications

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Mechanistic understanding of the adsorption and thermodynamic aspects of cationic methylene blue dye onto cellulosic olive stones biomass from wastewater

Sawdust-Based Cellulose Nanocrystals Incorporated with ZnO Nanoparticles as Efficient Adsorption Media in the Removal of Methylene Blue Dye

Mesoporous Carbons of Well-Organized Structure in the Removal of Dyes from Aqueous Solutions

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