Adsorption of Benzene Homologs Materials from Organic Wastewater onto Modified Bentonite

Yong Juan Liu; Long Gui Peng; Li Li Jia

doi:10.4028/www.scientific.net/AMM.865.662

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 865Adsorption of Benzene Homologs Materials from...

Adsorption of Benzene Homologs Materials from Organic Wastewater onto Modified Bentonite

Abstract:

Bentonite has been purified by suspension method and sodiumed with sodium carbonate, and then modified with polyaniline. Finally, characterized by the polarizing microscope, the X-ray diffractometer(XRD) and Fourier infrared spectrometer (FT-IR), in order to determine the optimal preparation technology of polyaniline/bentonite. And the optimal preparation of PAn/MMT is used to research the adsorption dynamics analysis on phenol. The result shows that the sodium ion enters into the bentonite interlayer through ion exchange; When the dosage of bentonite is 5 g, the dosage of FeCl₃·6H₂O is 2.7 g, the dosage of aniline is 46.5 g, and the dosage of DBSA is 3.26 g, its layer spacing of modified bentonite is 2.823nm, increaseing 1.600nm than the first, so the hydrophobicity and separation effects of the modified bentonite get greatly improvement. And the dosage of PAn/MMT is 0.1 g and the initial concentration of phenol、P-nitrophenol、o-cresol is 10 mg/L, their adsorption rates reach to 51.50%, 80.56%, 62.93%, more high than the sodium bentonite under the same conditinns. It indicates that the modified bentonite is more suitable for the adsorption of benzene homologs.

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Periodical:

Applied Mechanics and Materials (Volume 865)

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662-666

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.865.662

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Online since:

June 2017

Authors:

Yong Juan Liu, Long Gui Peng*, Li Li Jia

Keywords:

Adsorption, Bentonite, Benzene Homologs, Polyaniline

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