Catalytic efficiency and stability of cobalt hydroxide for decomposition of ozone and p-chloronitrobenzene in water

Xu, Z.; Chen, Z.; Joll, Cynthia; Ben, Y.; Shen, J.; Tao, H.

doi:10.1016/j.catcom.2009.01.021

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Access Status

Open access

Authors

Xu, Z.

Chen, Z.

Joll, Cynthia

Ben, Y.

Shen, J.

Tao, H.

Date

2009

Type

Journal Article

Metadata

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Citation

Xu, Zhenzhen and Chen, Zhonglin and Joll, Cynthia and Ben, Yue and Shen, Jimin and Tao, Hui. 2009. Catalytic efficiency and stability of cobalt hydroxide for decomposition of ozone and p-chloronitrobenzene in water. Catalysis Communications. 10 (8): pp. 1221-1225.

Source Title

Catalysis Communications

DOI

10.1016/j.catcom.2009.01.021

ISSN

15667367

Faculty

Curtin Water Quality Research Centre (CWQRC)

Faculty of Science and Engineering

School

Department of Applied Chemistry

Abstract

Cobalt hydroxide, a stable and efficient catalyst prepared in the laboratory, has been successfully used in the decomposition of ozone and trace quantities of p-chloronitrobenzene (pCNB) in water. The cobalt hydroxide was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and the Brunauer-Emmet-Teller (BET) method. The decomposition rate of aqueous ozone was increased by 1.527 times in the presence of cobalt hydroxide. Increasing the catalyst loading from 0 to 500 mg/L increased the removal efficiency of pCNB from 59% to 99%. The catalyst morphology and its composition were found to be unaltered after the catalytic reaction. After five successive recycles, the catalyst remained stable in the catalytic ozonation of pCNB.