Removal of Lissamine rhodamine B and acid orange 10 from aqueous solution using activated carbon/surfactant: Process optimization, kinetics and equilibrium

Cheng, Zhengjun; Zhang, Lei; Guo, Xiao; Jiang, Xiaohui; Liu, Rong

doi:10.1016/j.jtice.2014.09.032

Cited by 31 publications

(7 citation statements)

References 42 publications

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“…Taking into account the high efficiency, economic feasibility and manipulability, removal of dyes by adsorption technique is regarded as one of the competitive tactics [29][30][31]. However, the synthesis of highly effective adsorbents is still a huge challenge.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of magnetic hybrid Fe3O4/MIL-101 via heterogeneous coprecipitation assembly for efficient adsorption of anionic dyes

Jiang

2016

Journal of the Taiwan Institute of Chemical Engineers

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Section: Introductionmentioning

confidence: 99%

Facile synthesis of magnetic hybrid Fe3O4/MIL-101 via heterogeneous coprecipitation assembly for efficient adsorption of anionic dyes

Jiang

2016

Journal of the Taiwan Institute of Chemical Engineers

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“…At lower concentrations, competition for sites is not very intense, which makes the adsorption rate high (higher values of k2). However, when the concentration increases, the competition for the sites also increases, leading to a lower adsorption rate [26,50]. Another parameter that contributes to determining the predominant kinetic mechanism in the adsorption process is the proximity between the values of qe calculated by theoretical (qe,cal) and experimental (qe,exp) models, in this case, the closer the proximity between these parameters, the greater the applicability of the model [18,37].…”

Section: 𝑙𝑛 (𝑞 𝑒 − 𝑞mentioning

confidence: 99%

Low-cost activated carbon from the husk of Pará nuts for dye removal from aqueous solution: kinetic and thermodynamic mechanism study

Santos

Oliveira²,

Nascimento³

et al. 2022

Sci. Plena

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The use of activated carbon produced from the husk of Pará nuts, Bertholletia excelsa, as an ecological and low-cost alternative for the adsorption of reactive orange 16 dye (RO-16) was used. The adsorbent material, CA-700325, was synthesized by carbonizing the biomass of Brazil nuts at 700 ºC for 2h in order to obtain activated carbon with high adsorptive capacity. The superficial characterization was performed by FTIR and BET. Langmuir, Freundlich and Temkin isotherms were used to describe the adsorption equilibrium, while the adsorption kinetics was studied using pseudo-first order, pseudo-second order, Elovich and intraparticle diffusion models. The removal of RO-16 depends on the pH of the medium, reaching a maximum index at pH 1.0. At a dosage of 5.0 g/L, the removal of RO-16 was greater than 99%. Adsorption isotherms had a better fit of the experimental data with Langmuir model, revealing that the adsorption of RO-16 in the CA-700325 occurs in a monolayer, with a maximum capacity of adsorption in a monolayer of 154.8 mg/g, the adsorption equilibrium appears in 150 min and that the adsorption kinetics follows the pseudo-second order model. The present study reports that the low-cost material is very promising for the treatment of the textile industry effluents.

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“…The parameter β 0 is the model constant, β i the linear coefficient, β ii the quadratic coefficients, and β ij the cross-product coefficients. The analysis of variance (ANOVA) method is applied to estimate the significance level of factors (Cheng et al 2015;Hou et al 2012).…”

Section: Procedures and Analysismentioning

confidence: 99%

Response surface methodology for the optimization of acid dye adsorption onto activated carbon prepared from wild date stones

et al. 2019

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In the present study, wild date stones (WDS) were used as a novel and sustainable precursor for high-quality activated carbon preparation to be applied for the removal of Acid Blue 25 dye (AB25) from synthetic water. The carbonization temperature of the raw material was selected at 850 °C on the basis of thermo-gravimetric analysis. The adsorbents were characterized by the BET method, Fourier transform infrared spectroscopy, and scanning electron microscopy. The results indicated that the activated carbon presents a high specific surface area (610.84 m 2 g −1 ) and a pore volume (0.224 cm 3 g −1 ) compared with the natural material. Based on the central composite design, the effect of different parameters such as the biomass dose, initial dye concentration, contact time and temperature was optimized and the optimal removal of AB25 (99.61%) was achieved for AB25 concentration of 100 mg L −1 and an adsorbent dose of 0.8 g L −1 , at 45 °C after 120 min. The kinetic studies indicated that the pseudo-second-order model was appropriately applied for the adsorption kinetic of AB25 onto wild date stones activated carbon. The intraparticle diffusion model is not the only controlling step, and other mechanisms may be involved in the adsorption process. The Langmuir isotherm provided the best fit with a high correlation coefficient (R 2 ) of 0.993 and a maximum monolayer adsorption capacity of 181.59 mg g −1 .

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Removal of Lissamine rhodamine B and acid orange 10 from aqueous solution using activated carbon/surfactant: Process optimization, kinetics and equilibrium

Cited by 31 publications

References 42 publications

Facile synthesis of magnetic hybrid Fe3O4/MIL-101 via heterogeneous coprecipitation assembly for efficient adsorption of anionic dyes

Facile synthesis of magnetic hybrid Fe3O4/MIL-101 via heterogeneous coprecipitation assembly for efficient adsorption of anionic dyes

Low-cost activated carbon from the husk of Pará nuts for dye removal from aqueous solution: kinetic and thermodynamic mechanism study

Response surface methodology for the optimization of acid dye adsorption onto activated carbon prepared from wild date stones

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