| Photoassisted Fenton degradation of phthalocyanine dyes from wastewater of printing industry using Fe(Ⅱ)/γ-Al2O3 catalyst in up-flow fluidized-bed |
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| 作者姓名： | Hsuhui Cheng Shihjie Chou Shiaoshing Chen Chiajen Yu |
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| 作者单位： | Department of Design for Sustainable Environment, Mingdao University, Changhua 52345, Taiwan, Chinese Taipei;Institute of Environment Engineering and Management, National Taipei University of Technology, Taiwan, Chinese Taipei;Institute of Environment Engineering and Management, National Taipei University of Technology, Taiwan, Chinese Taipei;Department of Design for Sustainable Environment, Mingdao University, Changhua 52345, Taiwan, Chinese Taipei |
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| 摘 要： | Fe(II)/γ-Al2O3 powders synthesized using the dipping method were produced from a mixed aqueous solution containing aluminium oxide(γ-Al2O3) and iron(II)-precursor(FeSO4), and used for photoFenton degradation of phthalocyanine dyes(PCS) under ultraviolet(UV) irradiation in an up-flow fluidized bed. The catalysts were characterized by XRD, ESCA, BET, EDS and SEM. The results showed that Fe2+ion was compounded on the γ-Al2O3 carrier. The effects of different reaction parameters such as catalyst activity, dosage and solution pH on the decolorization of PCS were assessed. Results indicated that maximum decolorization(more than 95%) of PCS occurred with20 wt% Fe(II)/γ-Al2O3 catalyst(dosage of 60 g/L) using a combination of UV irradiation and heterogeneous Fenton system. The degradation efficiency of PCSincreases as pH decreases, exhibiting a maximum efficiency at pH 3.5. The recycled catalyst was capable of repeating three runs without a significant decrease in treatment efficiency, and this demonstrated the stability and reusability of catalyst.
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| 关 键 词： | Fe(Ⅱ)/γ-AlO catalyst phthalocyanine dyes fluidize |
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