Study on the Photochemical Decolorization of Orange II by Natural Goethite

Wei Li Zhou; Wei Ding; Jie Kuang; Long Chen; Jin Jun Li

doi:10.4028/www.scientific.net/AMR.821-822.480

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 821-822Study on the Photochemical Decolorization of...

Study on the Photochemical Decolorization of Orange II by Natural Goethite

Abstract:

The decolorization of Orange II in goethite/UV system was investigated. It was discovered that the optimum condition is: pH=3, [α-FeOOH]=0.5 g/L, [Orange II]=10 mg/L. Furthermore, the absorption of Orange II on goethite, and the effect of pH values, goethite dosage and carboxylate on the decolorization were investigated. The decolorization efficiency was 90% after 6h irradiation when the concentration of pyruvic acid was 1.0mmol/L, α-FeOOH concentration was 0.3 g/L, and Orange II concentration was 10 mg/L at pH 3.0. Besides, total organic carbon (TOC) and chemical oxygen demand (COD) were determined, and a possible reaction mechanism was prompted as well.

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Periodical:

Advanced Materials Research (Volumes 821-822)

Pages:

480-483

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.821-822.480

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Online since:

September 2013

Authors:

Wei Li Zhou, Wei Ding, Jie Kuang, Long Chen, Jin Jun Li

Keywords:

Decolorization, Fenton Reaction, Goethite, Orange II, Photochemistry

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