Adsorption Characteristics of Pb2+ from Aqueous Solution on the Corn Stalk/montmorillonite Nanocomposite

Xiao Li Wang; Lixiang Wang; Huijuan Wang

doi:10.4028/www.scientific.net/AMM.295-298.438

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 295-298Adsorption Characteristics of Pb2+ from Aqueous...

Adsorption Characteristics of Pb²⁺ from Aqueous Solution on the Corn Stalk/montmorillonite Nanocomposite

Abstract:

The corn stalk/montmorillonite(CS/MMT) nanocomposite was prepared by a solution intercalation technique. The effects of the initial pH value of Pb2+ solution, contact time and the dosage of adsorbent on the adsorption capacitiy of CS/MMT nanocomposite for Pb2+ were investigated. The adsorption kinetics and isotherms of nanocomposite were also studied. The results indicated that with the initial pH value increasing, the adsorption capacity of the CS/MMT nanocomposite increased. Compared with the adsorption capacity of CS (6.32 mg/g), the nanocomposite exhibited the higher adsorption capacity (31.95 mg/g). The adsorption behaviors of CS/MMT nanocomposite showed that the adsorption kinetics was in accorded with pseudo-second-order equation and the adsorption isotherms followed the Langmuir and Freundlich equation.

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Periodical:

Applied Mechanics and Materials (Volumes 295-298)

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438-442

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.295-298.438

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Online since:

February 2013

Authors:

Xiao Li Wang, Lixiang Wang, Huijuan Wang

Keywords:

Adsorption, Corn Stalk, Montmorillonite, Nanocomposite, Pb²⁺

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