Decolorization of reactive dye using a photo-ferrioxalate system with brick grain-supported iron oxide

Hui Pin Cheng; Yao Hui Huang; Changha Lee

doi:10.1016/j.jhazmat.2011.01.131

Decolorization of reactive dye using a photo-ferrioxalate system with brick grain-supported iron oxide

Hui Pin Cheng, Yao Hui Huang, Changha Lee

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The photocatalytic activity of a brick grain-supported iron oxide (denoted as B1) was tested for its activity to degrade Reactive Black 5 (RB5) in the presence of oxalic acid. B1 was obtained as a solid waste from a wastewater treatment plant, and characterized using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray powder diffraction (XRD) and N₂ adsorption/desorption isotherm analyses. The decolorization experiments were performed in a fluidized bed reactor with aeration under UV-A irradiation (λ=365nm). The effects of various factors such as solution pH, concentration of oxalic acid and dissolved oxygen on the decolorization of RB5 were evaluated considering the contributions of adsorption and photo-catalytic degradation. The role of dissolved iron in the removal of RB5 and the stability of B1 were also examined. In addition, the removal of TOC during the photo-catalytic reaction was monitored.

Original language	English
Pages (from-to)	357-362
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	188
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jhazmat.2011.01.131
Publication status	Published - 2011 Apr 15

All Science Journal Classification (ASJC) codes

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2011.01.131

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title = "Decolorization of reactive dye using a photo-ferrioxalate system with brick grain-supported iron oxide",

abstract = "The photocatalytic activity of a brick grain-supported iron oxide (denoted as B1) was tested for its activity to degrade Reactive Black 5 (RB5) in the presence of oxalic acid. B1 was obtained as a solid waste from a wastewater treatment plant, and characterized using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray powder diffraction (XRD) and N2 adsorption/desorption isotherm analyses. The decolorization experiments were performed in a fluidized bed reactor with aeration under UV-A irradiation (λ=365nm). The effects of various factors such as solution pH, concentration of oxalic acid and dissolved oxygen on the decolorization of RB5 were evaluated considering the contributions of adsorption and photo-catalytic degradation. The role of dissolved iron in the removal of RB5 and the stability of B1 were also examined. In addition, the removal of TOC during the photo-catalytic reaction was monitored.",

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Decolorization of reactive dye using a photo-ferrioxalate system with brick grain-supported iron oxide

Abstract

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