Use of bagasse fly ash as an adsorbent for the removal of brilliant green dye from aqueous solution

Mane, Venkat S.; Mall, Indra Deo; Srivastava, Vimal Chandra

doi:10.1016/j.dyepig.2005.12.006

Cited by 297 publications

(128 citation statements)

References 28 publications

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“…This also stimulates a very slow rate of migration of adsorbate from the liquid phase on to the adsorbent surface. The values of k p,1 and k p,2 , as obtained from the slopes of the straight lines, are given in Table 4, and the data indicate that pore diffusion is not the sole rate-controlling step (Mane et al, 2007).…”

Section: Intra-particle Diffusion Modelmentioning

confidence: 99%

Removal of copper(II) ion from aqueous solution by high-porosity activated carbon

Djordjević¹,

Milutin²,

Aleksandar³

et al. 2013

WSA

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The removal of copper(II) ion from aqueous solution by the granular activated carbon, obtained from hazelnut shells (ACHS) (Corylus avellana L. var. lunga istriana), was investigated. The ACHS was prepared from ground dried hazelnut shells by specific method carbonisation and water steam activation at 950 o C for 2 h. The granular activated carbon produced from hazelnut shells has a high specific surface area (1 452 ). In batch tests, the influences of solution pH, contact time, initial metal ion concentration and temperature on the sorption of copper(II) ion on ACHS were studied. The results indicate that sorption of copper(II) ion on ACHS strongly depends on pH values. The adsorption data can be well described by the Langmuir isotherm and Redlich-Peterson model. The monolayer adsorption capacity of the ACHS-copper(II) ion, calculated from the Langmuir isotherms, is 3.07 mmol•g -1. The time-dependent adsorption of copper(II) ion could be described by the pseudo second-order and Elovich kinetics, indicating that the rate-limiting step might be a chemical reaction. The intra-particle diffusion model indicates that adsorption of copper(II) ions on ACHS was diffusion controlled.

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Section: Intra-particle Diffusion Modelmentioning

confidence: 99%

Removal of copper(II) ion from aqueous solution by high-porosity activated carbon

Djordjević¹,

Milutin²,

Aleksandar³

et al. 2013

WSA

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“…Moreover, the uptake of Cr(VI) increases up to a certain threshold and then remains almost unchanged possibly due to the presence of repulsive forces between adsorbate molecules on the solid and bulk phases contributing to the observed moderate rates of adsorption as it approaches the equilibrium 26 . Adsorption curves are single, smooth, and continuous leading to saturation and indicate the possible monolayer coverage 26,27 on the surface of adsorbents by Cr(VI). Due to the rapid adsorption of all available sites and a relatively small amount of adsorbent used, removal efficiency of Cr(VI) decreased, an increase in the amount of adsorbent may therefore reverse adsorption trend 28 .…”

Section: Kinetic Profilementioning

confidence: 99%

Batch Adsorption Study and Kinetic Profile of Cr(VI) Using Lumbang (Aleurites moluccana)-Derived Activated Carbon-Chitosan Composite Crosslinked With Epichlorohydrin

Villarante¹,

Bautista²,

Sumalapao³

2017

Orient. J. Chem

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Batch adsorption of toxic Cr(VI) ion from an aqueous solution using lumbang (Aleurites moluccana) activated carbon-chitosan composite crosslinked with epichlorohydrin as an adsorbent was investigated. The adsorption experiments were performed at varying pH, agitation time, initial Cr(VI) ion concentration, temperature, and adsorbent dose. At an initial concentration of 60 ppm Cr(VI), the maximum adsorption was observed at pH 3, adsorbent dose of 3 g/L, contact time of 75 min, and temperature of 30 o C. Analysis of the experimental data using different kinetic models revealed that the biosorption phenomenon behaved under a pseudo second-order rate mechanism.

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“…The removal of adsorbate was rapid, but it gradually decreased over time until it reached equilibrium. An initial concentration of pesticide of 1 mg/l (Mane et al 2007) was used to investigate the kinetics of adsorption. PFF degradation by bacterial consortium was reported less than 90 % in 5 days (Jabeen et al 2015).…”

Section: Effect Of Contact Timementioning

confidence: 99%

Adsorption kinetics and thermodynamics of organophosphorus profenofos pesticide onto Fe/Ni bimetallic nanoparticles

Mansouriieh

Sohrabi

Khosravi

2016

Int. J. Environ. Sci. Technol.

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Bimetallic Fe/Ni nanoparticles were synthesized and used for the removal of profenofos organophosphorus pesticide from aqueous solution. These novel bimetallic nanoparticles (Fe/Ni) were characterized by scanning electron microscopy, energy-dispersive X-ray analysis spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The effect of the parameters of initial pesticide concentration, pH of the solution, adsorbent dosage, temperature, and contact time on adsorption was investigated. The adsorbent exhibited high efficiency for profenofos adsorption, and equilibrium was achieved in 8 min. The Langmuir, Freundlich, and Temkin isotherm models were used to determine equilibrium. The Langmuir model showed the best fit with the experimental data (R 2 = 0.9988). Pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were tested to determine absorption kinetics. The pseudo-second-order model provided the best correlation with the results (R 2 = 0.99936). The changes in the thermodynamic parameters of Gibb's free energy, enthalpy, and entropy of the adsorption process were also evaluated. Thermodynamic parameters indicate that profenofos adsorption using Fe/Ni nanoparticles is a spontaneous and endothermic process. The value of the activation energy (E a = 109.57 kJ/mol) confirms the nature of the chemisorption of profenofos onto Fe/Ni adsorbent.

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Use of bagasse fly ash as an adsorbent for the removal of brilliant green dye from aqueous solution

Cited by 297 publications

References 28 publications

Removal of copper(II) ion from aqueous solution by high-porosity activated carbon

Removal of copper(II) ion from aqueous solution by high-porosity activated carbon

Batch Adsorption Study and Kinetic Profile of Cr(VI) Using Lumbang (Aleurites moluccana)-Derived Activated Carbon-Chitosan Composite Crosslinked With Epichlorohydrin

Adsorption kinetics and thermodynamics of organophosphorus profenofos pesticide onto Fe/Ni bimetallic nanoparticles

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