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Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2 |
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| Authors: | Hou Mei-Fang Liao Lin Zhang Wei-De Tang Xiao-Yan Wan Hong-Fu Yin Guang-Cai |
| Affiliation: | a School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China b Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-environmental and Soil Sciences, Guangzhou 510650, China c Institute of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China |
| Abstract: | Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2 was investigated. The effects of H2O2 dose, Fe(0) dose, initial concentration of rhodamine B and initial pH value on the degradation of rhodamine B were examined. The results showed that the degradation and mineralization of rhodamine B occurred with low dose of H2O2 and Fe(0). The intermediates of rhodamine B were analyzed with UV-Vis spectrophotometry and ion chromatography and the mechanism of oxidative degradation of rhodamine B was also discussed. The reactive oxygen species (·OH) produced in Fe(0)-based Fenton process with H2O2 is the key to the degradation of rhodamine B by ways of N-de-ethylation, chromophore cleavage, ring-opening and mineralization. |
| Keywords: | Rhodamine B Fe(0) Fenton process H2O2 |
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