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Title: Dark ambient degradation of Bisphenol A and Acid Orange 8 as organic pollutants by perovskite SrFeO3−δ metal oxide
Authors: Leiw, Ming Yian
Guai, Guan Hong
Wang, Xiaoping
Tse, Man Siu
Ng, Chee Mang
Tan, Ooi Kiang
Keywords: SrFeO3−δ
Dark degradation
Issue Date: 2013
Source: Leiw, M. Y., Guai, G. H., Wang, X., Tse, M. S., Ng, C. M., & Tan, O. K. (2013). Dark ambient degradation of Bisphenol A and Acid Orange 8 as organic pollutants by perovskite SrFeO3−δ metal oxide. Journal of Hazardous Materials, 260, 1-8.
Series/Report no.: Journal of Hazardous Materials
Abstract: Current advanced oxidation processes (AOPs) are chemically and energetically intensive processes, which are undesirable for cost-effective and large-scale system water treatment and wastewater recycling. This study explored the Strontium Ferrite (SFO) metal oxide on the degradation of highly concentrated organic pollutants under dark ambient condition without any external stimulants. The SFO particles with single perovskite structure were successfully synthesized with a combined high temperature and high-energy ball milling process. An endocrine disruptor, Bisphenol A (BPA) and an azo dye, Acid Orange 8 (AO8) were used as probe organic pollutants. BPA was completely degraded with 83% of mineralization in 24 h while rapid decoloration of AO8 was achieved in 60 min and complete breakdown into primary intermediates and aliphatic acids occurred in 24 h under the treatment of dispersed SFO metal oxide in water. Such efficient degradation could be attributed to the enhanced adsorption of these anionic pollutants on positively charged ball-milled SFO metal oxide surface, resulted in higher degradation activity. Preliminary degradation mechanisms of BPA and AO8 under the action of SFO metal oxide were proposed. These results showed that the SFO metal oxide could be an efficient alternative material as novel advanced oxidation technology for low cost water treatment.
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2013.04.031
Schools: School of Chemical and Biomedical Engineering 
School of Civil and Environmental Engineering 
School of Electrical and Electronic Engineering 
Rights: © 2013 Elsevier.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles
EEE Journal Articles
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