Adsorptive removal of dye crystal violet onto low-cost carbon produced from Eichhornia plant: kinetic, equilibrium, and thermodynamic studies

Kaur, Simran; Rani, Seema; Mahajan, Rakesh Kumar

doi:10.1080/19443994.2013.841109

Cited by 40 publications

(20 citation statements)

References 46 publications

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“…They also noticed that adsorption of MB onto WH follows Langmuir isotherm model. Kaur et al [13] have used WH as a potential adsorbent to remove dye crystal violet (CV) from aqueous solutions under different experimental conditions corroborating that adsorption increases with increase in contact time, adsorbent dose, temperature, and pH. The experimental sorption data showed the goodness-of-fit with PSO model along with higher correlation coefficients ( 2 > 0.999).…”

Section: Introductionmentioning

confidence: 92%

“…Malik [8] pointed out that the WH has tremendous survival capability in the presence of toxic pollutants and hence it should be able to be used effectively in heavy metals removal process, as well as other pollutants from polluted water. Many great efforts have demonstrated that WH can be used to adsorb a cationic dye (methylene blue, MB) [4], phenol [9], cadmium [5], copper [10], uranium (VI) [11], Victoria blue [12], crystal violet [13], and so forth, from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Biosorbent, Water-Hyacinth, Uptaking Methylene Blue from Aqueous Solution: Kinetics and Equilibrium Studies

Uddin

Islam

Das

2014

International Journal of Chemical Engineering

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The adsorption of MB dye from aqueous solution onto HCl acid treated water-hyacinth (H-WH) was investigated by carried out batch sorption experiments. The effect of process parameters such as pH, adsorbent dosage, concentrations and contact time, and ionic strength were studied. Adsorption of MB onto H-WH was found highly pH dependent and ionic strength shows negative impact on MB removal. To predict the biosorption isotherms and to determine the characteristic parameters for process design, Langmuir, Freundlich, Temkin, and Halsey isotherms models were utilized to equilibrium data. The adsorption kinetics was tested for pseudo-first-order (PFO), pseudo-second-order (PSO), intraparticle diffusion (IPD), and Bangham’s kinetic models. The Langmuir isotherm model showed the goodness-of-fit among the tested models for equilibrium adsorption of MB over H-WH and indicated the maximum adsorption capacity as 63.30 mg/g. Higher coefficient of determination (R2>0.99) and better agreement between the qe (experimental) andqe(calculated) values predicted that PSO kinetic model showed the goodness-of-fit for kinetic data along with rate constant1.66×10-3,4.42×10-3, and3.57×10-3 mg·g-1min⁡-1/2⁡, respectively, for the studied concentration range. At the initial stage of adsorption, the overall rate of dye uptake was found to be dominated by external mass transfer, and afterwards, it is controlled by IPD mechanism.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

A Novel Biosorbent, Water-Hyacinth, Uptaking Methylene Blue from Aqueous Solution: Kinetics and Equilibrium Studies

Uddin

Islam

Das

2014

International Journal of Chemical Engineering

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“…Figure 2 shows higher values of relative absorbance in the case of untreated samples as compared to pretreated samples. This result could be attributed to the chemical changes observed when sugar cane bagasse is pretreated with phosphoric acid and heat (Kaur et al, 2013).…”

Section: Using Ftir Spectroscopymentioning

confidence: 95%

Chemical and physical preparation of activated carbon using Raw bagasse for cationic dye adsorption

2016

Global NEST Journal

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Agriculture wastes like sugarcane bagasse are available in large quantities in Egypt. Various adsorbents from natural materials, industrial waste materials, agricultural by-products, and biomass based activated carbon can be used in the removal of various dyes. Raw Bagasse pith (RBP) was used to prepare activated carbon (AC) using phosphoric acid (H3PO4) as a chemical activating agent. C The raw BP and the synthesized adsorbent were characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscope (SEM). The effectiveness of AC prepared in adsorption of methylene blue (MB) has been studied as a function of adsorbent type, initial dye concentration and contact time. The effects of the initial dye concentration and contact time were evaluated. Adsorption isotherm models -Langmuir, Freundlich and Temkin were used to simulate the equilibrium data. Langmuir equation was found to have the highest value of R 2 compared with other models. Furthermore, it was found that sugarcane bagasse have a high adsorptive capacity towards MB.

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“…where k 2 (mg g -1 min -1 ) is the pseudo-second-order rate constant of adsorption [20][21][22]. The equilibrium adsorption capacity (Q e ) and k 2 can be found experimentally from the slope and intercept of plot t/Q t vs. t (Fig.…”

Section: Kinetic Modelsmentioning

confidence: 99%

Green synthesized Fe3O4 nanoparticles as a magnetic core to prepare poly 1, 4 phenylenediamine nanocomposite: employment for fast adsorption of lead ions and azo dye

Beyki

Shirkhodaie

Karimi

et al. 2016

Desalination and Water Treatment

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Different approaches such as precipitation, combustion, and hydrothermal method are available to prepare Fe 3 O 4 nanoparticles. Respect to other methods, precipitation, especially with one iron source and natural reducing agents is a more green, economic, fast, and simple route for Fe 3 O 4 synthesis. Based on these viewpoints, we have prepared Fe 3 O 4 magnetic nanoparticles via a sonochemistry precipitation method using only one iron source and sugar, which was employed as a reducing agent. The combination of these prepared magnetic nanoparticles with polyphenylenediamine via an emulsion polymerization resulted in a magnetic polymer nanocomposite. The prepared magnetic material was characterized by Fourier transform infrared (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and vibration sample magnetometer techniques. The magnetic nanocomposite was then successfully employed as an adsorbent in the removal of Pb 2+ ions and Direct red 81 (DR-81) from single and binary solution. The results demonstrated that the maximum adsorption was obtained within 5 min at pH 4.0 and also the adsorption processes of Pb 2+ and DR-81 both were well fitted by pseudo-second-order kinetic model. The experimental data were analyzed by the Langmuir and Freundlich adsorption models. Freundlich model provided the best correlation of the experimental data for dye but lead adsorption well fitted with Langmuir model. Moreover, the maximum capacity of polymer nanocomposite was found to be 144.92 and 370.37 mg g −1 for DR-81 and Pb 2+ , respectively.

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Adsorptive removal of dye crystal violet onto low-cost carbon produced from Eichhornia plant: kinetic, equilibrium, and thermodynamic studies

Cited by 40 publications

References 46 publications

A Novel Biosorbent, Water-Hyacinth, Uptaking Methylene Blue from Aqueous Solution: Kinetics and Equilibrium Studies

A Novel Biosorbent, Water-Hyacinth, Uptaking Methylene Blue from Aqueous Solution: Kinetics and Equilibrium Studies

Chemical and physical preparation of activated carbon using Raw bagasse for cationic dye adsorption

Green synthesized Fe3O4 nanoparticles as a magnetic core to prepare poly 1, 4 phenylenediamine nanocomposite: employment for fast adsorption of lead ions and azo dye

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