Adsorption of Malachite Green dye onto activated carbon derived from Borassus aethiopum flower biomass

Nethaji, S.; Sivasamy, A.; Thennarasu, G.; Saravanan, S.

doi:10.1016/j.jhazmat.2010.05.008

Cited by 270 publications

(78 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Despite the fact that BET surface area was found to be 0.683 and 0.114 m 2 g À1 for CAd and SAd, respectively, it highlights the need for carbonization after chemical treatment for precursors. Some works have reported the similar result for low-cost adsorbents prepared from Delonix regia pods and Borassus aethiopum flower biomass (Ho et al, 2009;Nethaji et al, 2010). The use of adsorbents with BET surface area much lesser than 100 m 2 g À1 in the removal of pollutants has also been reported (Daifullah and Girgis, 1998;Danish et al, 2011;Jassim et al, 2012;Karago¨z et al, 2008;Munusamy et al, 2011;Murthy et al, 2013;Norlia et al, 2011;Singh et al, 2006).…”

Section: Resultsmentioning

confidence: 63%

Model-fitting approach for methylene blue dye adsorption on Camelina and Sapindus seeds-derived adsorbents

Sharma

Tiwari

Pant

2016

Adsorption Science & Technology

View full text Add to dashboard Cite

Adsorption of methylene blue dye over the adsorbent derived from Sapindus seed hull (S) and Camelina (C) is studied. Batch adsorption study on both adsorbents is compared as a function of various parameters such as time, initial concentration and temperature. Langmuir and Freundlich models were fitted to the equilibrium data of methylene blue dye adsorption. Kinetics was evaluated using pseudo-first-and second-order models. Weber Morris model helped to understand the intraparticle diffusion during adsorption of methylene blue molecules. Thermodynamic analysis on both adsorbents revealed the spontaneity of the process. The relative study illustrated a comparison in adsorption capacities among both the adsorbents. Morphology explicated the surface characteristics of both the sorbents. Fourier transform infrared spectroscopy spectrum revealed a variety of functional groups on adsorbents' surface.

show abstract

Section: Resultsmentioning

confidence: 63%

Model-fitting approach for methylene blue dye adsorption on Camelina and Sapindus seeds-derived adsorbents

Sharma

Tiwari

Pant

2016

Adsorption Science & Technology

View full text Add to dashboard Cite

show abstract

“…As can be seen, the adsorption uptakes of RBBR increased from 4.2 to 14.1 mg/g and from 11.5 to 30.4 mg/g for R-CL and Zn-CL, respectively for an increase in Zn-CL dose from 0.2 to 0.5 g. This was due to contribution of the increasing sorbent surface area and availability of more adsorption sites. However, the adsorption uptakes decreased after 0.5 g. This may be due to the decrease in total adsorption surface area available to RBBR resulting from overlapping or aggregation of adsorption sites [14]. …”

Section: Effect Of the Adsorbent Dosagementioning

confidence: 95%

Enhancement of Remazol Brilliant Blue R Adsorption Capacity by using Modified Clinoptilolite

Alrozi

Anuar

Faraziehan

et al. 2016

IJEE

View full text Add to dashboard Cite

In this study, the adsorption behavior of Remazol Brilliant Blue R (RBBR) from aqueous solution by using raw and modified clinoptilolites were investigated. In the experimental work, raw clinoptilolite (R-CL) was treated with Zn(NO3)2 in ethanol and produced zinc-grafted clinoptilolite (Zn-CL).The adsorption experiments were carried out under different conditions of initial concentration (25-250 mg/L), adsorption time (0-2h), solution pH (2-12), and temperature (300-353 K) to determine optimum conditions for the highest RBBR removal. The influence of these parameters on the adsorption capacity was studied using the batch process. The results indicated that the solution pH was observed to be a key factor of the RBBR adsorption process. The maximum dye adsorption was achieved with Zn-CL adsorbent at pH~6 and the corresponding adsorption capacity was found to be 42.2 mg/g, which was higher than R-CL (12.5 mg/g). Lower adsorption capacity of RBBR was found by Zn-CL between pH 8 and 12 opposite to R-CL which showed a marginal increase in adsorption capacity within the same pH range. The results proved that Zn-CL which is a modified clinoptilolite is an effective adsorbent for the removal of RBBR from aqueous solution.

show abstract

“…In order to investigate mechanism of adsorption and to determine rate-controlling step the following kinetic rate equations have been used to test the experimental data (Zhao et al, 2008;Nethaji et al, 2010).…”

Section: Adsorption Kineticsmentioning

confidence: 99%

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

Adsorption of Malachite Green dye onto activated carbon derived from Borassus aethiopum flower biomass

Cited by 270 publications

References 26 publications

Model-fitting approach for methylene blue dye adsorption on Camelina and Sapindus seeds-derived adsorbents

Model-fitting approach for methylene blue dye adsorption on Camelina and Sapindus seeds-derived adsorbents

Enhancement of Remazol Brilliant Blue R Adsorption Capacity by using Modified Clinoptilolite

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

Contact Info

Product

Resources

About