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

TY - JOUR

T1 - Removal of trace Cd(II) from water with the manganese oxides/ACF composite electrode

AU - Chen, Yaping

AU - Peng, Liang

AU - Zeng, Qingru

AU - Yang, Yang

AU - Lei, Ming

AU - Song, Huijuan

AU - Chai, Liyuan

AU - Gu, Jidong

N1 - Publisher Copyright: © Springer-Verlag Berlin Heidelberg 2014.

PY - 2015/1

Y1 - 2015/1

N2 - 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.

AB - 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.

KW - Capacitive deionization

KW - Cd(II)

KW - Electrosorption

KW - Manganese oxides

UR - http://www.scopus.com/inward/record.url?scp=84901551138&partnerID=8YFLogxK

U2 - 10.1007/s10098-014-0756-1

DO - 10.1007/s10098-014-0756-1

M3 - 文章

AN - SCOPUS:84901551138

SN - 1618-954X

VL - 17

SP - 49

EP - 57

JO - Clean Technologies and Environmental Policy

JF - Clean Technologies and Environmental Policy

IS - 1

ER -