Adsorption of Styrene on Hydrochloric Acid-Modified Sepiolite

Zhao Du; Bin Bin Yang; Er Hong Duan; Bin Guo

doi:10.4028/www.scientific.net/AMR.518-523.2058

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Adsorption of Styrene on Hydrochloric...

Adsorption of Styrene on Hydrochloric Acid-Modified Sepiolite

Abstract:

In this work, the breakthrough curves of styrene in fixed beds packed separately with hydrochloric acid-modified sepiolite were determined. And the Temperature Programmed Desorption (TPD) method is applied to research the desorption activation energy on modified sepiolite and untreated sepiolite. The results showed that in compared with the original sepiolite, the hydrochloric acid-modified sepiolite had more surface basic groups, pore volume and higher surface area so that their adsorption capacities of styrene were improved. The sepiolite modified with 12% hydrochloric acid solution had more micropore volume and higher surface area than the other modified sepiolite, and thus its adsorption capacity of styrene was the highest. The activation energy for desorption of styrene on the modified is higher than on the original sepiolite, this show that using hydrochloric acid modified sepiolite can enhance its adsorption of styrene.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

2058-2063

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https://doi.org/10.4028/www.scientific.net/AMR.518-523.2058

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Online since:

May 2012

Authors:

Zhao Du, Bin Bin Yang, Er Hong Duan, Bin Guo

Keywords:

Adsorption, Hydrochloric Acid-Modified, Sepiolite, Styrene

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