Adsorption of Copper(II) onto Perlite

Alkan, Mahir; Doğan, Mehmet

doi:10.1006/jcis.2001.7796

Cited by 187 publications

(105 citation statements)

References 49 publications

(65 reference statements)

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“…The energy changes associated with the adsorption process were also investigated by evaluating thermodynamic parameters: standard Gibbs energy change (DG ), enthalpy change (DH ) and entropy change (DS ). The thermodynamic parameters for the adsorption process were obtained using Equations (8) and (9):…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

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Green synthesis and characterisation of L-Serine capped magnetite nanoparticles for removal of Rhodamine B from contaminated water

Belachew

Devi

Basavaiah

2017

Journal of Experimental Nanoscience

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This paper describes a green one-pot synthesis of L-Serine (L-Ser) capped magnetite nanoparticles (Fe 3 O 4 NPs) and its potential application for adsorption of RhB dye from aqueous solution. The surface property, structure, morphology and magnetic properties of as prepared L-Ser capped Fe 3 O 4 NPs were characterised through UV-Visible spectroscopy, Fourier transform-infrared spectroscopy, X-Ray Diffraction (XRD), scanning electron microscope, transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The XRD results were indicated the formation of high crystalline spinel type Fe 3 O 4 NPs. TEM images were shown the spherical shape of L-Ser capped Fe 3 O 4 NPs with particle size of 5.9 nm. The VSM curve showed the superparamagnetic behaviour of L-Ser capped Fe 3 O 4 . A plausible interaction mechanism of L-Ser and Fe 3 O 4 NPs was also investigated. L-Ser capped Fe 3 O 4 NPs due to its large surface area and a strong magnetism was shown potential adsorption efficiency towards RhB dye from aqueous solution. The adsorption isotherm data fitted well with Langmuir isotherm model and the monolayer adsorption capacity (q e,exp ) was found to be 6.82 mg/g at pH 7.4 and 300 K. The experimental kinetic data fitted very well with the pseudo-second-order model. The thermodynamic studies reveal that adsorption efficiency is critically dependent on temperature.

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Section: Adsorption Thermodynamicsmentioning

confidence: 99%

“…In the last decades, many approaches have been studied for the development of lowcost and more effective adsorbents such as silica gel [7], perlite [8], lignite [9], fly ash [10], etc. Most of these adsorbents due to their highly porous in nature provide sufficient surface area for adsorption.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis and characterisation of L-Serine capped magnetite nanoparticles for removal of Rhodamine B from contaminated water

Belachew

Devi

Basavaiah

2017

Journal of Experimental Nanoscience

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“…Expanded perlite (EP) is inexpensive and abundantly available, most of perlite contains greater than 70% silica and are adsorptive [1],which could make it an economical adsorbent for removing heavy metals [2] and organic matter [3]. Moreover, EP was classified as ultra-light weight material with a density of about 32 g/L, which is also an excellent candidate in solid phase extraction .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ionic Liquid-immobilized Expanded Perlite and Its Analytical Application

Liu

Bakheet

Zhu

2015

The Proceedings of the 2nd International Conference on Industrial Application Engineering 2015

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The ultra-light weight ionic liquid immobilized expanded perlite (IL-EP) was synthesized and characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). ionic liquid immobilized expanded perlite (IL-EP) as a novel adsorbent solid phase extraction (SPE) coupled with UV-visible absorption spectrometry for the determination of abiraterone acetate/abiraterone was established. The results were shown that the IL-EP could be conveniently separated The method was applied to analyzing abiraterone acetate/ abiraterone in tablet and serum samples with reasonable results.

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“…Adsorption is a mass transfer process, which involves the contact of solid (adsorbent) with a fluid containing certain pollutants (Reynolds and Richards, 1995;Alkan and Dogan, 2001;Chien and Shah, 2007;Igwe et al, 2008;Shah et al, 2009). As a result of the contact, the pollutant binds to the surface of the adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Multiscale estimation of the Freundlich adsorption isotherm

Nounou

2010

Int. J. Environ. Sci. Technol.

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ABSTRACT:Adsorption plays an important role in water and wastewater treatment. The analysis and design of processes that involve adsorption rely on the availability of isotherms that describe these adsorption processes. Adsorption isotherms are usually estimated empirically from measurements of the adsorption process variables. Unfortunately, these measurements are usually contaminated with errors that degrade the accuracy of estimated isotherms. Therefore, these errors need to be filtered for improved isotherm estimation accuracy. Multiscale wavelet based filtering has been shown to be a powerful filtering tool. In this work, multiscale filtering is utilized to improve the estimation accuracy of the Freundlich adsorption isotherm in the presence of measurement noise in the data by developing a multiscale algorithm for the estimation of Freundlich isotherm parameters. The idea behind the algorithm is to use multiscale filtering to filter the data at different scales, use the filtered data from all scales to construct multiple isotherms and then select among all scales the isotherm that best represents the data based on a cross validation mean squares error criterion. The developed multiscale isotherm estimation algorithm is shown to outperform the conventional time-domain estimation method through a simulated example.

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Adsorption of Copper(II) onto Perlite

Cited by 187 publications

References 49 publications

Green synthesis and characterisation of L-Serine capped magnetite nanoparticles for removal of Rhodamine B from contaminated water

Green synthesis and characterisation of L-Serine capped magnetite nanoparticles for removal of Rhodamine B from contaminated water

Preparation of Ionic Liquid-immobilized Expanded Perlite and Its Analytical Application

Multiscale estimation of the Freundlich adsorption isotherm

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