Removal Of Indigo Carmine Dye (Ic) By Batch Adsorption Method Onto Dried Cola Nut Shells And Its Active Carbon From Aqueous Medium

Odogu, Ankoro Naphtali; Kouotou, Daouda; Desire, Belibi Belibi Placide; Nsami, Ndi Julius; Mbadcam, Ketcha Joseph

doi:10.5281/zenodo.48382

2016

DOI: 10.5281/zenodo.48382

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Removal Of Indigo Carmine Dye (Ic) By Batch Adsorption Method Onto Dried Cola Nut Shells And Its Active Carbon From Aqueous Medium

Ankoro Naphtali Odogu¹,

Daouda Kouotou²,

Belibi Belibi Placide Desire³

et al.

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Cited by 4 publications

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Influence of alternating current on the adsorption of indigo carmine

Kesraoui

Selmi

Seffen

et al. 2016

Environ Sci Pollut Res

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The main purpose of this work is to study the effect of a new process of accelerating which consist to couple the electrochemical process with the adsorption to remove an anionic dye, the indigo carmine. That is why, we investigated the effects of the new process of accelerating the adsorption process by using alternating current (AC) on the retention of an anionic dye, the indigo carmine. The adsorption capacity of dye (mg/g) was raised with the raise of current voltage in solution, temperature, and initial indigo carmine concentration and decreased with the increase of initial solution pH, current density, and mass of carbon. The results demonstrate that the removal efficiency of 97.0 % with the current voltage of 15 V is achieved at a current density of 0.014 A/cm, of pH 2 using zinc as electrodes and contact time of 210 min for adsorption in the presence of AC. Concerning the adsorption without AC, the results obtained showed that for an initial concentration equal to 20 mg/L, more than 95 % amount of adsorbed dye was retained after 405 min of contact in batch system. The comparison between adsorption in the presence and absence of an alternating current shows the importance of the alternating current in the acceleration of the adsorption method and improve the performances of FILTRASORB 200. For both cases, the adsorption mechanism follows the fractal kinetics BSf(n,α) model and the Brouers-Sotolongo isotherm model provides a good fit of the experimental data for both adsorption with and without alternating current.

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Influence of alternating current on the adsorption of indigo carmine

Kesraoui

Selmi

Seffen

et al. 2016

Environ Sci Pollut Res

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Corn cobs and KOH-treated biomasses for indigo carmine removal: kinetics and isotherms

Echeverría-Pérez,

Carvajal-Palacio,

Gómez-Plata

et al. 2023

emergent mater.

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Batch Studies for the Removal of a Hazardous Azo Dye Methyl Orange from Water through Adsorption on Regenerated Activated Carbons

Asseng¹,

Dzoujo²,

Dina³

et al. 2020

JMSE-B

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The study of the performances of regenerated activated carbons for the adsorption of MO (methyl orange) in an aqueous medium was carried out with the aim to evaluate the adsorption capacities of these activated carbons. Three regenerated activated carbons issued from the unit of oil treatment of the thermal power station of Dibamba (Cameroon)-DPDC (Dibamba Power Development Company) were obtained thermally and chemically. These three samples (namely CAR 400 °C (chemical regenerated activated carbon at 400 °C), CAR 700 °C (physical regenerated activated carbon at 700 °C) and CAR 900 °C (physical regenerated activated carbon at 900 °C)) and the non-used one CA were characterized by iodine number, XRD (X-ray Diffraction) and FTIR (Fourier-transform infrared spectroscopy). MO adsorption tests were performed in batch mode; this technique allowed the study of the influence of the parameters such as: the contact time, the initial's MO concentration and the pH. Moreover, different kinetic models (first-order, pseudo-second-order and Webber and Morris intra-particle diffusion) and adsorption isotherms (Langmuir and Freundlich) are used for the evaluation of adsorption capacities. The physicochemical characterization of these adsorbents showed that they were micro-porous (iodine value: 600 mg/g) and strongly crystallized according to their regeneration pathways. The influence of the parameters revealed that the adsorption of MO is the most favorable for concentrations from 5 to 25 mg/L (for materials CA and CAR 400 °C) and 10 to 25 g/L (for materials CAR 700 °C and 900 °C); and that it was maximum in acid medium (at pH = 3 on the materials CA, CAR 400 °C, CAR 900 °C and at pH = 5 on the material CAR 900 °C). The modeling of the adsorption kinetics of MO has revealed the conformity of the kinetic model of pseudosecond-order and intra-particle diffusion for some of these materials. The study of isotherms has shown that the Langmuir isotherm best describes the adsorption of MO on most of these adsorbents.

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Removal Of Indigo Carmine Dye (Ic) By Batch Adsorption Method Onto Dried Cola Nut Shells And Its Active Carbon From Aqueous Medium

Cited by 4 publications

References 0 publications

Influence of alternating current on the adsorption of indigo carmine

Influence of alternating current on the adsorption of indigo carmine

Corn cobs and KOH-treated biomasses for indigo carmine removal: kinetics and isotherms

Batch Studies for the Removal of a Hazardous Azo Dye Methyl Orange from Water through Adsorption on Regenerated Activated Carbons

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