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Characterization of sepiolite by inverse gas chromatography at infinite and finite surface coverage

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Abstract.
The adsorption properties of sepiolite from Andrici, Serbia, were studied by inverse gas chromatography at
zero and finite surface coverage between 483 and 513 K. The thermodynamic parameters (free energy,
enthalpy, entropy) of adsorption, as well as the dispersive and specific components of the free energy of
adsorption and the acid/base of the solid were calculated from the IGC data at zero coverage. The KD/KA ratio
indicated basis character. The adsorption isotherms were used to estimate the specific surface area, isosteric heat of adsorption and the adsorption energy distribution for the adsorption of organic molecules.

Keywords: Inverse gas chromatography, Sepiolite, Adsorption, Acid–base interactions

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Informasi Detail

Judul Seri

Applied Clay Science

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Applied Clay Science 43 (2009) 41–48

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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