Removal of trace As(V) from water with the titanium dioxide/ACF composite electrode

Liang Peng; Yaping Chen; Hong Dong; Qingru Zeng; Huijuan Song; Liyuan Chai; Ji Dong Gu

doi:10.1007/s11270-015-2463-x

Removal of trace As(V) from water with the titanium dioxide/ACF composite electrode

Liang Peng^*, Yaping Chen, Hong Dong, Qingru Zeng, Huijuan Song, Liyuan Chai, Ji Dong Gu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

The novel titanium oxide/active carbon fiber (TiO₂/ACF) electrode was prepared, and electrosorptive properties for As(V) in aqueous solution were investigated. The structure of TiO₂/ACF was characterized with transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Furthermore, the As(V) electrosorptive properties of TiO₂/ACF electrodes with calcination temperature, ionic species, and loaded amount of TiO₂ were measured, and the electrosorption isotherm and kinetics were investigated at the applied voltage of 1.5 V. The optimal load quality of TiO₂ was 0.80 g per ACF electrode (length × width × height∈=∈2 cm∈×∈1 cm∈×∈0.4 cm, 0.30 g), and optimum calcination temperature was 450 °C. The maximum electrosorption capacity of TiO₂/ACF was 8.09 mg/g, about 200 % higher than that of ACF. Moreover, the electrode performance was stable than other materials such as pure ACF, manganese oxide/ACF, and iron oxides/ACF. It can process 100 ppb As(V) of water to 6 ppb (reach the drinking water standards of WHO), demonstrating that our novel electrode is with potential practical application.

Original language	English
Article number	203
Journal	Water, Air, and Soil Pollution
Volume	226
Issue number	7
DOIs	https://doi.org/10.1007/s11270-015-2463-x
State	Published - 5 Jun 2015
Externally published	Yes

Keywords

Arsenic
Electrosorption
Titanium dioxide
Water

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title = "Removal of trace As(V) from water with the titanium dioxide/ACF composite electrode",

abstract = "The novel titanium oxide/active carbon fiber (TiO2/ACF) electrode was prepared, and electrosorptive properties for As(V) in aqueous solution were investigated. The structure of TiO2/ACF was characterized with transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Furthermore, the As(V) electrosorptive properties of TiO2/ACF electrodes with calcination temperature, ionic species, and loaded amount of TiO2 were measured, and the electrosorption isotherm and kinetics were investigated at the applied voltage of 1.5 V. The optimal load quality of TiO2 was 0.80 g per ACF electrode (length × width × height∈=∈2 cm∈×∈1 cm∈×∈0.4 cm, 0.30 g), and optimum calcination temperature was 450 °C. The maximum electrosorption capacity of TiO2/ACF was 8.09 mg/g, about 200 % higher than that of ACF. Moreover, the electrode performance was stable than other materials such as pure ACF, manganese oxide/ACF, and iron oxides/ACF. It can process 100 ppb As(V) of water to 6 ppb (reach the drinking water standards of WHO), demonstrating that our novel electrode is with potential practical application.",

keywords = "Arsenic, Electrosorption, Titanium dioxide, Water",

author = "Liang Peng and Yaping Chen and Hong Dong and Qingru Zeng and Huijuan Song and Liyuan Chai and Gu, {Ji Dong}",

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year = "2015",

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doi = "10.1007/s11270-015-2463-x",

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T1 - Removal of trace As(V) from water with the titanium dioxide/ACF composite electrode

AU - Peng, Liang

AU - Chen, Yaping

AU - Dong, Hong

AU - Zeng, Qingru

AU - Song, Huijuan

AU - Chai, Liyuan

AU - Gu, Ji Dong

PY - 2015/6/5

Y1 - 2015/6/5

N2 - The novel titanium oxide/active carbon fiber (TiO2/ACF) electrode was prepared, and electrosorptive properties for As(V) in aqueous solution were investigated. The structure of TiO2/ACF was characterized with transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Furthermore, the As(V) electrosorptive properties of TiO2/ACF electrodes with calcination temperature, ionic species, and loaded amount of TiO2 were measured, and the electrosorption isotherm and kinetics were investigated at the applied voltage of 1.5 V. The optimal load quality of TiO2 was 0.80 g per ACF electrode (length × width × height∈=∈2 cm∈×∈1 cm∈×∈0.4 cm, 0.30 g), and optimum calcination temperature was 450 °C. The maximum electrosorption capacity of TiO2/ACF was 8.09 mg/g, about 200 % higher than that of ACF. Moreover, the electrode performance was stable than other materials such as pure ACF, manganese oxide/ACF, and iron oxides/ACF. It can process 100 ppb As(V) of water to 6 ppb (reach the drinking water standards of WHO), demonstrating that our novel electrode is with potential practical application.

AB - The novel titanium oxide/active carbon fiber (TiO2/ACF) electrode was prepared, and electrosorptive properties for As(V) in aqueous solution were investigated. The structure of TiO2/ACF was characterized with transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Furthermore, the As(V) electrosorptive properties of TiO2/ACF electrodes with calcination temperature, ionic species, and loaded amount of TiO2 were measured, and the electrosorption isotherm and kinetics were investigated at the applied voltage of 1.5 V. The optimal load quality of TiO2 was 0.80 g per ACF electrode (length × width × height∈=∈2 cm∈×∈1 cm∈×∈0.4 cm, 0.30 g), and optimum calcination temperature was 450 °C. The maximum electrosorption capacity of TiO2/ACF was 8.09 mg/g, about 200 % higher than that of ACF. Moreover, the electrode performance was stable than other materials such as pure ACF, manganese oxide/ACF, and iron oxides/ACF. It can process 100 ppb As(V) of water to 6 ppb (reach the drinking water standards of WHO), demonstrating that our novel electrode is with potential practical application.

KW - Arsenic

KW - Electrosorption

KW - Titanium dioxide

KW - Water

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ER -

Removal of trace As(V) from water with the titanium dioxide/ACF composite electrode

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