Journal
RESEARCH ON CHEMICAL INTERMEDIATES
Volume 42, Issue 2, Pages 481-497Publisher
SPRINGER
DOI: 10.1007/s11164-015-2035-0
Keywords
Persulfate; Zero valent iron (ZVI); CuO; Dual catalysts; Orange G
Categories
Funding
- National Natural Science Foundation of China [51208206]
- Guangdong Provincial Department of Science [2012A032300015]
- Guangdong Natural Science Foundation [S2011040000389]
- Fundamental Research Funds for the Central Universities [2013ZZ0031]
Ask authors/readers for more resources
The degradation of Orange G (OG) by persulfate (PS, S2O8 (2-)) activated with dual catalysts that combined zero-valent iron (ZVI) and copper oxide (CuO) was investigated through batch experiments. Effects of pH, initial OG concentration, persulfate dosages, and dosages of dual catalysts on OG degradation were also examined. Higher persulfate concentration and catalysts dosages resulted in higher OG degrading rates. The OG degradation was higher under acidic conditions (pH 3.0 and 5.0) when compared to alkaline conditions. The constituents and the morphology of the catalysts coating before and after reaction were also investigated with X-ray diffraction and scanning electron microscopy. Radical mechanism was studied and three radical scavengers [methanol (MA), tert-butanol (TBA), phenol] were used to determine the type of major active species taking part in the degradation of OG. It was assumed that the or played a major role in the OG degradation. In conclusion, the ZVI/CuO/PS system is a good candidate for use in detoxifying water contaminants.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available