Removal of basic dye by modified Unye bentonite, Turkey

Eren, Erdal

doi:10.1016/j.jhazmat.2008.06.016

Cited by 53 publications

(23 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the case of MB the % removal increased from 93.55% (at pH 3.0) to 96.88% (at pH 7.0), while it increased from 86% (at pH 3.0) to 96.12% (at pH 7.0) in the case of CV. Similar observations have been reported for the adsorption of MB and CV using different biosorbents (Ponnusami et al, 2009;Eren, 2009).…”

Section: Effect Of Ph On the Removal Of Mb And CVsupporting

confidence: 89%

Equilibrium and kinetic adsorption study of aqueous basic dye solutions using waste foundry sand

Gürkan

Çoruh

2017

IJGW

View full text Add to dashboard Cite

Abstract:The aim of this study is to evaluate adsorption kinetics, isotherms and thermodynamic parameters of crystal violet (CV) and methylene blue (MB) dyes from aqueous solution using waste foundry sand. Adsorption studies were carried out at different initial dye concentrations (12.5 -400 mg l -1 ), contact time (5 -240 min), pH (3.0 -9.0), sorbent doses (0.125 -2 g l -1 ) and adsorption temperature (20°C -70°C). The equilibrium adsorption data were analysed by Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (DRK) adsorption isotherm models. Of the four adsorption isotherms, the R 2 value of Langmuir isotherm model for MB and CV were 0.969 and 0.926, respectively. Experimental data were analysed using the pseudo-first order, the pseudo-second order, intraparticle diffusion and Elovich models. The characteristic parameters for each model have been determined. In addition, the equilibrium thermodynamic parameters, including changes in Gibbs free energy, entropy and enthalpy are determined for the CV and MB on waste foundry sand.

show abstract

Section: Effect Of Ph On the Removal Of Mb And CVsupporting

confidence: 89%

Equilibrium and kinetic adsorption study of aqueous basic dye solutions using waste foundry sand

Gürkan

Çoruh

2017

IJGW

View full text Add to dashboard Cite

show abstract

“…It is assumed that the rate is not limited by mass transfer from the bulk solution to the external surface of adsorbent due to the particles are vigorously agitated during the sorption period [36][37][38][39].…”

Section: Kinetic Studymentioning

confidence: 99%

Equilibrium and kinetic studies on free cyanide adsorption from aqueous solution by activated carbon

Behnamfard

Salarirad

2009

Journal of Hazardous Materials

160

106

View full text Add to dashboard Cite

“…The experiments of adsorption equilibrium and kinetics were carried out as similarly described before [15]. The amount of CV + adsorbed (mmol/g), (q e ), onto bentonite was calculated from the mass balance equation as follows:…”

Section: Dye Adsorption Measurementmentioning

confidence: 99%