Mineralization and decolorization of C.I. reactive black 5 in sonochemical process and Fenton process

Eunju Cho; Mingcan Cui; Myunghee Lim; Younggyu Son; Boyoun Kweon; Jeehyeong Khim

doi:10.1143/JJAP.48.07GH06

Mineralization and decolorization of C.I. reactive black 5 in sonochemical process and Fenton process

Eunju Cho, Mingcan Cui, Myunghee Lim, Younggyu Son, Boyoun Kweon, Jeehyeong Khim

School of Civil, Environmental and Architectural Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

The objective of this study was to improve the removal efficiency of decolorization and mineralization of reactive black 5 (RB5) by the combination of the sonochemical process and the Fenton process. In the combined process, the RB5 was almost removed and the removal efficiency of chemical oxygen demand (COD) and total organic carbon (TOC) increased. This means that H ₂O₂ and Fe²⁺/Fe³⁺ were reactive continuously. The color was almost removed because the azo bonds are broken down prior to the benzene ring bonds for OH radical. The COD/TOC ratio decreased, implying that the average oxidation state of carbon increased, and the form of RB5 was thus changed from aromatic structures to aliphatic structures.

Original language	English
Article number	07GH06
Journal	Japanese Journal of Applied Physics
Volume	48
Issue number	7 PART 2
DOIs	https://doi.org/10.1143/JJAP.48.07GH06
Publication status	Published - 2009 Jul 1

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ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Cite this

Cho, E., Cui, M., Lim, M., Son, Y., Kweon, B., & Khim, J. (2009). Mineralization and decolorization of C.I. reactive black 5 in sonochemical process and Fenton process. Japanese Journal of Applied Physics, 48(7 PART 2), [07GH06]. https://doi.org/10.1143/JJAP.48.07GH06

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Access to Document

10.1143/JJAP.48.07GH06