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Supported cobalt oxide on graphene oxide: highly efficient catalysts for the removal of Orange II from water.
J Hazard Mater. 2012 Aug 30; 229-230:331-9.JH

Abstract

The current paper investigated the removal of the azo dye Orange II from water using advanced oxidation processes based on sulfate radicals. The cobalt oxide catalyst immobilized on graphene oxide (GO) can activate peroxymonosulfate (PMS) for the degradation of Orange II in water. The Co(3)O(4)/GO catalyst system was characterized via X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and X-ray spectroscopy. Results showed that Co(3)O(4) was distributed on GO. The Co(3)O(4)/GO catalyst system exhibited high activity in Orange II oxidation when the Co(3)O(4)/GO catalyst has an optimum Co(3)O(4) loading. In addition, 100% decomposition could be achieved within 6 min with 0.2mM Orange II, 0.1 g L(-1) catalyst, and 2mM PMS. Meanwhile, inductively coupled plasma analysis revealed that the leach of cobalt ions was low. The catalyst also exhibited stable performance after several rounds of regeneration. Several operational parameters, such as catalyst amount, oxidant amount, pH, temperature, and oxidation rate, affected the degradation of Orange II.

Authors+Show Affiliations

College of Environment Science and Engineering, Donghua University, Shanghai 201620, PR China. sph1123@163.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22738772

Citation

Shi, Penghui, et al. "Supported Cobalt Oxide On Graphene Oxide: Highly Efficient Catalysts for the Removal of Orange II From Water." Journal of Hazardous Materials, vol. 229-230, 2012, pp. 331-9.
Shi P, Su R, Zhu S, et al. Supported cobalt oxide on graphene oxide: highly efficient catalysts for the removal of Orange II from water. J Hazard Mater. 2012;229-230:331-9.
Shi, P., Su, R., Zhu, S., Zhu, M., Li, D., & Xu, S. (2012). Supported cobalt oxide on graphene oxide: highly efficient catalysts for the removal of Orange II from water. Journal of Hazardous Materials, 229-230, 331-9. https://doi.org/10.1016/j.jhazmat.2012.06.007
Shi P, et al. Supported Cobalt Oxide On Graphene Oxide: Highly Efficient Catalysts for the Removal of Orange II From Water. J Hazard Mater. 2012 Aug 30;229-230:331-9. PubMed PMID: 22738772.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Supported cobalt oxide on graphene oxide: highly efficient catalysts for the removal of Orange II from water. AU - Shi,Penghui, AU - Su,Ruijing, AU - Zhu,Shaobo, AU - Zhu,Mincong, AU - Li,Dengxin, AU - Xu,Shihong, Y1 - 2012/06/15/ PY - 2011/12/25/received PY - 2012/06/04/revised PY - 2012/06/06/accepted PY - 2012/6/29/entrez PY - 2012/6/29/pubmed PY - 2012/12/10/medline SP - 331 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 229-230 N2 - The current paper investigated the removal of the azo dye Orange II from water using advanced oxidation processes based on sulfate radicals. The cobalt oxide catalyst immobilized on graphene oxide (GO) can activate peroxymonosulfate (PMS) for the degradation of Orange II in water. The Co(3)O(4)/GO catalyst system was characterized via X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and X-ray spectroscopy. Results showed that Co(3)O(4) was distributed on GO. The Co(3)O(4)/GO catalyst system exhibited high activity in Orange II oxidation when the Co(3)O(4)/GO catalyst has an optimum Co(3)O(4) loading. In addition, 100% decomposition could be achieved within 6 min with 0.2mM Orange II, 0.1 g L(-1) catalyst, and 2mM PMS. Meanwhile, inductively coupled plasma analysis revealed that the leach of cobalt ions was low. The catalyst also exhibited stable performance after several rounds of regeneration. Several operational parameters, such as catalyst amount, oxidant amount, pH, temperature, and oxidation rate, affected the degradation of Orange II. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/22738772/Supported_cobalt_oxide_on_graphene_oxide:_highly_efficient_catalysts_for_the_removal_of_Orange_II_from_water_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(12)00627-9 DB - PRIME DP - Unbound Medicine ER -