Removal of Remazol Brilliant Blue R From Aqueous Solution by Pirina Pretreated with Nitric Acid and Commercial Activated Carbon

Dağdelen, Sevgi; Acemioğlu, Bilal; Baran, Evrim; Koçer, Oğuzhan

doi:10.1007/s11270-014-1899-8

Cited by 33 publications

(17 citation statements)

References 26 publications

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“…For determining the adsorption system, the data were fitted for applying different models [145] such as Langmuir, Freundlich and Du-binin-Radushkevich (D-R) isotherms.…”

Section: Adsorption Isotherm Studymentioning

confidence: 99%

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

El-Araby¹,

Ibrahim²,

Mangood³

et al. 2017

GEP

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In this study, the adsorption behavior of copper(II) ions from aqueous solutions onto sesame husk (SH) was investigated. The effect of different parameters such as pH, contact time, adsorbent dosage, adsorbate concentration, temperature and agitation speed was studied. Thermodynamic parameters, equilibrium isotherms and kinetic data have been evaluated. The functional groups and surface morphology of SH adsorbent were characterized by FTIR and SEM. Adsorption equilibrium isotherms were expressed by Langmuir, Freundlich and Dubinin-Radushkevich (D-R) adsorption models and it was found that Langmuir adsorption model fits the experimental data better than Freundlich and D-R models. The adsorption can be best described by the pseudo second-order kinetic model.

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“…For determining the adsorption system, the data were fitted for applying different models [145] such as Langmuir, Freundlich and Du-binin-Radushkevich (D-R) isotherms.…”

Section: Adsorption Isotherm Studymentioning

confidence: 99%

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

El-Araby¹,

Ibrahim²,

Mangood³

et al. 2017

GEP

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“…Furthermore, adsorption isotherms describe the adsorbate interaction with the adsorbent, including the adsorption features and types. The fitting of data is accomplished using diverse models in order to design adsorption systems (Dag˘delen et al, 2014). For this aim, Langmuir (1916) and Freundlich (1906) models were performed to the adsorption data of MB, MG, and RB on EAC.…”

Section: Equilibrium Studiesmentioning

confidence: 99%

Adsorption of cationic dyes on activated carbon obtained from waste Elaeagnus stone

Geçgel

Üner

Gökara

et al. 2016

Adsorption Science & Technology

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Activated carbon was obtained from waste Elaeagnus stone by a chemical activation method utilizing ZnCl 2 . The resultant Elaeagnus activated carbon (EAC) with a high activated specific surface area of 1588 m 2 /g was characterized using Brunauer-Emmett-Teller method, Fourier transform infrared spectra, point of zero charge, and scanning electron microscopy. The removals of cationic dyes, i.e., malachite green (MG), rhodamine B (RB), and methylene blue (MB) from aqueous solutions via EAC adsorption were characterized by investigating the effects of adsorbent concentration, contact time, initial dye concentration, and temperature. Langmuir model provided the most appropriate fit for all EAC dye adsorption processes, and the adsorption capacities for MB, RB, and MG at 25 C were calculated to be 288.18, 281.69, and 432.90 mg/g, respectively. The EAC adsorption curves of MB, RB, and MG follow a pseudo second-order kinetic model, and the calculated thermodynamic parameters, i.e., ÁG , ÁH , and ÁS revealed that the synthetic dye adsorptions from aqueous solution were endothermic and spontaneous.

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“…2. In raw material FTIR spectrum, the broad absorption band between 3200 and 3400 cm −1 shows the existences of OH groups and the vibration of N-H stretching (Dağdelen et al 2014). The bands located at 2923 and 2854 cm −1 indicate C-H vibrations methylene and methyl groups (Sun and Webley 2010).…”

Section: Characterization Of Cacmentioning

confidence: 99%

“…Also, the adsorption isotherm describes how the adsorbate interacts with the adsorbent, and the adsorption isotherm gives its adsorption type and its features. For the design of adsorption systems, the fitting of data with different models is used (Dağdelen et al 2014). In this study, the models of Langmuir (Langmuir 1916) and (Freundlich 1906) are applied in the adsorption of MB onto CAC.…”

Section: Equilibrium Studiesmentioning

confidence: 99%

Adsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioides

Geçgel

Kocabıyık

Üner

2015

Water Air Soil Pollut

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In this study, the fruit of Catalpa bignonioides was used as the raw material to obtain low-cost activated carbon. The activation process was carried out by using chemical activation method with zinc chloride. Catalpa activated carbon (CAC) was characterized using elemental analyzer, Brunauer-EmmetTeller (BET), scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR), and the point of zero charge (pH ZPC ). The BET surface area of CAC prepared by the impregnation ratio of 30 % ZnCl 2 (w/w) was found to be 896.02 m 2 /g. The efficiency in the process of the removal of methylene blue (MB) from aqueous solution by CAC was searched with different factors, such as temperature, pH, adsorbent concentration, dye concentration, and contact time. From the experimental data obtained, the studies related to adsorption isotherm, kinetics, and thermodynamics were performed. Langmuir model provided the best fit, and the adsorption capacity for the removal of methylene blue from aqueous solution by CAC was calculated to be 271.00 mg/g at 25°C. The adsorption follows a pseudo-second-order kinetic model. Moreover, the thermodynamic parameters such as ΔG°, ΔH°, and ΔS°presented that the adsorption was spontaneous and endothermic.

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Removal of Remazol Brilliant Blue R From Aqueous Solution by Pirina Pretreated with Nitric Acid and Commercial Activated Carbon

Cited by 33 publications

References 26 publications

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

Adsorption of cationic dyes on activated carbon obtained from waste Elaeagnus stone

Adsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioides

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