Adsorption of methylene blue on agroindustrial wastes: Experimental investigation and phenomenological modelling

Meili, Lucas; Lins, Pollyanna Vanessa Santos; Costa, Marília T. C. Martins; Almeida, Rafaela Luna De; Abud, Ana Karla de Souza; Soletti, João Inácio; Dotto, Guilherme L.; Tanabe, Eduardo Hiromitsu; Sellaoui, Lotfi; Carvalho, Sandra Helena Vieira de; Erto, Alessandro

doi:10.1016/j.pbiomolbio.2018.07.011

Cited by 163 publications

(48 citation statements)

References 73 publications

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“…After 3 h of contact time the adsorption achieved 96.74% of the maximum adsorption that was 4.41 mg g −1 after 24 h. For better efficiency, the time contact should be increased, but the time increase would not increase considerably the adsorption efficiency. Therefore, it can be said that the adsorption equilibrium was achieved after 3 h. This result is in agreement with the study by Meili et al (2019) [20], where various agro-industrial residues were used for MB biosorption. They obtained only 90% of MB removal, but using a concentration of MB 20 times higher and a concentration of SCB as adsorbent 2.5 times higher than that used in the present work.…”

Section: Kinetics Adsorption Experimentssupporting

confidence: 91%

Sugarcane Bagasse as an Efficient Biosorbent for Methylene Blue Removal: Kinetics, Isotherms and Thermodynamics

Siqueira

Silva

Rúbio

et al. 2020

IJERPH

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Adsorption in biomass has proven to be a cost-effective option for treatment of wastewater containing dyes and other pollutants, as it is a simple and low cost technique and does not require high initial investments. The present work aimed to study the adsorption of methylene blue dye (MB) using sugarcane bagasse (SCB). The biomass was characterized by scanning electron microscopy (SEM). Adsorption studies were conducted batchwise. Kinetics, adsorption isotherms, and thermodynamics were studied. The results showed that SCB presented a maximum adsorption capacity of 9.41 mg g−1 at 45 °C after 24 h of contact time. Adsorption kinetics data better fitted the pseudo-second order model, indicating a chemical process was involved. The Sips’s three-parameter isotherm model was better for adjusting the data obtained for the adsorption isotherms, indicating a heterogeneous adsorption process. The process showed to be endothermic, spontaneous, and feasible. Therefore, it was concluded that SCB presented as a potential biosorbent material for the treatment of MB-contaminated waters.

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Section: Kinetics Adsorption Experimentssupporting

confidence: 91%

Sugarcane Bagasse as an Efficient Biosorbent for Methylene Blue Removal: Kinetics, Isotherms and Thermodynamics

Siqueira

Silva

Rúbio

et al. 2020

IJERPH

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“…The value of the energy of adsorption was found of 19.1 kJ mol −1 , suggesting that the adsorption is of endothermic and physical nature. The same result was obtained by Meili et al [62] for the adsorption of MB onto an agricultural Algerian olive cake waste.…”

Section: Statistical Physics Analysis (Monolayer Model)supporting

confidence: 87%

“…According to the study reported by Meili et al [62], if the number of dye molecules is lower than 1.0, it indicates the multi-anchorage adsorption process, which reflects a parallel position of the dye molecule adsorbed on the surface. This means that the dye molecules can simultaneously interact with several functional groups present on the adsorbent surface.…”

Section: Statistical Physics Analysis (Monolayer Model)mentioning

confidence: 98%

Effective Adsorption of Methylene Blue dye onto Magnetic Nanocomposites. Modeling and Reuse Studies

et al. 2019

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In the present study, new adsorbent beads of alginate (A)/maghemite nanoparticles (γ-Fe2O3)/functionalized multiwalled carbon nanotubes (f-CNT) were prepared and characterized by several techniques, e.g., N2 adsorption-desorption isotherms, Fourier transformed infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA/DTG), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM) and further tested for the adsorption of the dye methylene blue (MB) from water. The beads (A/γ-Fe2O3/f-CNT) presented a relatively low BET specific surface area value of 59 m2g−1. The magnetization saturation values of A/γ-Fe2O3/f-CNT beads determined at 295 K was equal to 27.16 emu g−1, indicating a magnetic character. The time needed to attain the equilibrium of MB adsorption onto the beads was estimated within 48 h. Thus, several kinetic and isotherm equation models were used to fit the kinetic and equilibrium experimental results. The number of adsorbed MB molecules per active site, the anchorage number, the receptor sites density, the adsorbed quantity at saturation, the concentration at half saturation and the molar adsorption energy were quantified using the monolayer model. The calculated negative ΔG0 and positive ΔH0 values suggested the spontaneous and endothermic nature of the adsorption process. In addition, A/γ-Fe2O3/f-CNT composites can be used at least for six times maintaining their significant adsorptive performance and could be easily separated by using a magnet from water after treatment.

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“…Thus, it can be concluded from both Langmuir and D-R models that the adsorption mechanism of MB dye molecules on the porous WNS surface was due to the chemical adsorption. The reasonable maximum adsorption capacity (q m ) of WNS for MB was found to be 36.632 mg/g, which comes out to be superior in comparison to some biomass-based adsorbents like sugarcane bagasse 48 , and Sapindus seeds 49 which have the q e of 17.434 and 4.610 mg/g, respectively. www.nature.com/scientificreports www.nature.com/scientificreports/ Kinetics.…”

Section: Effect Of Contact Time and Initial Concentrationmentioning

confidence: 91%

Walnut shell powder as a low-cost adsorbent for methylene blue dye: isotherm, kinetics, thermodynamic, desorption and response surface methodology examinations

Uddin

Nasar

2020

Sci Rep

137

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the low cost, eco-friendly and potential biomass, i.e. walnut (Juglans regia) shell powder was deployed for the removal of toxic methylene blue dye from contaminated water solution. the important characterization of the waste material was conducted by using several techniques, i.e. Scanning electron microscope, fourier-transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray powder diffraction, Brunauer-Emmett-Teller surface area analysis, and Thermogravimetric analysis. the marked impact of various operating conditions, i.e. dose, concentration, time, pH and temperature on the adsorption process was investigated. increasing pH resulted in an increase of percent dye adsorption, and the adsorption mechanism was occurred by electrostatic attraction between negative adsorbent surface and positive dye molecules. the equilibrium data suited with Langmuir isotherm model while the adsorption practice followed the pseudo-second-order kinetic model. Higher temperature reduced the adsorption of dye molecules. the adsorption process was spontaneous, exothermic and chemical. the critical statistical analysis of the experimental results was directed by forming the design of the experiment, which was further, optimized by ANOVA, 3D and perturbation plots. the error and predicted values of both the studied responses as derived from the statistical model showed the agreeable results. 0.1 N HCl was found to be effective in complete desorption. The results are very practical and prove the effectiveness of walnut shell powder in the usage of decolorization for methylene blue.

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Adsorption of methylene blue on agroindustrial wastes: Experimental investigation and phenomenological modelling

Cited by 163 publications

References 73 publications

Sugarcane Bagasse as an Efficient Biosorbent for Methylene Blue Removal: Kinetics, Isotherms and Thermodynamics

Sugarcane Bagasse as an Efficient Biosorbent for Methylene Blue Removal: Kinetics, Isotherms and Thermodynamics

Effective Adsorption of Methylene Blue dye onto Magnetic Nanocomposites. Modeling and Reuse Studies

Walnut shell powder as a low-cost adsorbent for methylene blue dye: isotherm, kinetics, thermodynamic, desorption and response surface methodology examinations

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