Removal of basic dyes in binary system by adsorption using rarasaponin–bentonite: Revisited of extended Langmuir model

Kurniawan, Alfin; Sutiono, Hogiartha; Indraswati, Nani; Ismadji, Suryadi

doi:10.1016/j.cej.2012.02.070

Cited by 113 publications

(58 citation statements)

References 37 publications

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“…Recently, Kurniawan et al [23] and Soetaredjo et al [16] modified the extended Langmuir model by including fractional surface loading or coverage [23] and selectivity factor [16]. Since both epicatechin and catechin are organic compounds, the fractional surface loading approach by Kurniawan et al [23] is more suitable to represent the binary adsorption data of this study. Since competition between catechin and epicatechin molecules for vacant adsorption sites in the activated carbon occurred during the adsorption process, catechin and epicatechin were adsorbed in certain amount, and the adsorption capacity of the activated for both adsorbates (binary) can be written as…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…This competition may act as the controlling factor for the adsorption process [16,23] and such phenomenon is not captured by original extended Langmuir model. Recently, Kurniawan et al [23] and Soetaredjo et al [16] modified the extended Langmuir model by including fractional surface loading or coverage [23] and selectivity factor [16]. Since both epicatechin and catechin are organic compounds, the fractional surface loading approach by Kurniawan et al [23] is more suitable to represent the binary adsorption data of this study.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…Therefore it will be convenient if the multi-component isotherm can be constructed based on single adsorption isotherms. Various models have been developed for this purpose and one of the most widely used is the extended Langmuir and its modified forms [16,22,23]. The extended Langmuir model for a two-component system can be expressed as:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

See 2 more Smart Citations

Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Soetaredjo

Ismadji

Santoso

et al. 2013

Chemical Engineering Journal

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Recovery of catechin and epicatechin from sago waste effluent. Supercritical CO 2 desorption of catechin and epicatechin from activated carbon. Adsorption of catechin and epicatechin in binary system. a r t i c l e i n f o b s t r a c tThe recovery of valuable phenolic compounds (catechin and epicatechin) from sago waste effluent by activated carbon adsorption was studied in this work. Single and binary component of catechin and epicatechin was studied in static mode using synthetic effluent. Langmuir model was applied to evaluate the adsorption equilibrium data in single system. In binary system, the modified extended Langmuir model by inclusion of surface coverage was used to represent the adsorption data. All experimental data were well represented either by Langmuir model or its modified form. For kinetic study, it was found that pseudo-second order model represents the experimental data better than pseudo-first order model. Adsorption study using real sago waste effluent indicated that activated carbon adsorption process is promising for recovery of valuable phenolic compounds. Supercritical CO 2 extraction of phenolic compounds from activated carbon resulted in low recovery. The addition of ethanol as co-solvent significantly enhanced the desorption of catechin and epicatechin from activated carbon.

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Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Adsorption Isothermsmentioning

confidence: 99%

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Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Soetaredjo

Ismadji

Santoso

et al. 2013

Chemical Engineering Journal

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“…Such phenomena result in the solid surface being covered by both adsorbates with certain fractional loadings. Moreover, the adsorption potential of the surface is also affected by lateral interaction or competition between adsorbate species (Kurniawan et al 2012).…”

Section: Multi-component Adsorptionmentioning

confidence: 99%

Review of the use of mesoporous silicas for removing dye from textile wastewater

Salahshoor

Shahbazi

2014

European Journal of Environmental Sciences

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The textile industry is a major user of dyes and hence an important source of water pollution, which poses a threat to aquatic as well as human life. Adsorption is a widely used technique for separating and removing dye from wastewater. Recently the use of mesoporous silica (MPSs) as an adsorbent in wastewater treatment has received considerable attention. MPSs are emerging as potential adsorbents because of their surface area, tunable and uniform pore structure, high pore volume, ordered pore structure, thermal and mechanical stability, and extraordinarily wide possibilities for functionalization to increase their adsorption capacity. In this paper the ability of MPSs to absorb dyes from aqueous solutions is reviewed. This article provides information on adsorption studies carried out under different operational conditions such as contact time, solution pH, temperature, agitation speed, etc. This review also summarizes and attempts to compare the equilibrium isotherm and kinetic models, and the thermodynamic studies that report the adsorption of dyes onto MPSs. The literature reviewed, indicate that SBA-MPSs have a higher adsorption capacity than MCM-MPSs and functionalized MPSs a better adsorption capacity than MPSs. It is evident from the literature that the potential of MPS based nano-sorbents being used for removing dyes from aqueous solution is very high. However, still more research work is needed on developing cost effective and more efficient MPS based nano-sorbents for use commercially.

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“…One of this reason is probably the difficulty to quantify the analytes, methods such as chromatography [9], mass spectrometry [10] and capillary electrophoresis [11] usually require complex techniques, extended scanning times or expensive equipment. Although, spectrophotometric methods, based on Lambert-Beer law, are less reported, they represent a reliable and time-saving methodology when the single-components in the mixture do not react but their spectra are overlapped [12,13].…”

Section: Introductionmentioning

confidence: 99%

Removal of the Mixture of Azo Dyes Allura Red - Tartrazine by Adsorption onto Corncob

Jiménez¹,

Velásquez²,

Mejía³

et al. 2017

International Conference of Recent Trends in Environmental Science and Engineering

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-Synthetic dyes are widely used around the world, and big volumes of coloured effluents end up being discharged into water bodies. Allura Red and Tartrazine are azo dyes with a broad use spectrum mainly in food and textile industries and their removal from the aquatic ecosystems, is a challenge. In the last decades, several methods have emerged to find a solution of this environmental problem, among them, adsorption using agro-industrial by-products stands out as a high efficient and low cost metodology for the removal of dyes, both individual and in mixture. Thus, the aim of this work was to confirm the reliability of spectrophotometric techniques for quantifying coloured compounds and then to evaluate the adsorption process of the mixture Allura Red -Tartrazine through a 2 3 full factorial design with a central point. The Lambert-Beer law allows to quantify with errors lower than 2.0%. The best percentage of adsorption of the azo dyes mixture, in order of 94.92%, was achieved with a dosage of 20 g/L and concentrations of 20 ppm for both dyes. These results show that adsorption using agricultural wastes is a promising alternative for treating mixtures of dyes in solution.

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Removal of basic dyes in binary system by adsorption using rarasaponin–bentonite: Revisited of extended Langmuir model

Cited by 113 publications

References 37 publications

Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Recovery of catechin and epicatechin from sago waste effluent: Study of kinetic and binary adsorption isotherm studies

Review of the use of mesoporous silicas for removing dye from textile wastewater

Removal of the Mixture of Azo Dyes Allura Red - Tartrazine by Adsorption onto Corncob

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