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Clean Technologies and Environmental Policy

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01.01.2015 | Original Paper

Removal of trace Cd(II) from water with the manganese oxides/ACF composite electrode

verfasst von: Yaping Chen, Liang Peng, Qingru Zeng, Yang Yang, Ming Lei, Huijuan Song, Liyuan Chai, Jidong Gu

Erschienen in: Clean Technologies and Environmental Policy | Ausgabe 1/2015

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Abstract

The Manganese oxide/active carbon fiber (MO/ACF) was prepared and its electrosorptive properties of Cd(II) in aqueous solution were investigated. The structure of MO/ACF was characterized with transmission electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. Furthermore, the Cd(II) electrosorptive properties of MO/ACF electrodes with different bias potentials, ionic strengths, and loaded amount of manganese oxides were measured and the electrosorption isotherm and kinetics were investigated. The Cd(II) electrosorptive capacity of MO/ACF was 6 times higher than that of pure ACF. The optimal adsorptive bias voltage was 1.5 V and the optimal electrolyte concentration of NaCl was 0.1 mol/L. The adsorption isotherm was agreed well with the Freundlich adsorption model and its maximum electrosorption capacity was 14.88 mg/g by Langmuir model. The higher adsorptive capacity of MO/ACF than that of pure ACF is attributed to higher capacitance and more adsorptive sites of MO/ACF.

Vorheriger Artikel Removal of elemental mercury from gas stream using sulfur-functionalized silica microspheres (S-SMs)

Nächster Artikel Life cycle assessment of the Spanish cement industry: implementation of environmental-friendly solutions

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Titel: Removal of trace Cd(II) from water with the manganese oxides/ACF composite electrode
verfasst von: Yaping Chen
Liang Peng
Qingru Zeng
Yang Yang
Ming Lei
Huijuan Song
Liyuan Chai
Jidong Gu
Publikationsdatum: 01.01.2015
Verlag: Springer Berlin Heidelberg
Erschienen in: Clean Technologies and Environmental Policy / Ausgabe 1/2015
Print ISSN: 1618-954X
Elektronische ISSN: 1618-9558
DOI: https://doi.org/10.1007/s10098-014-0756-1

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