e-journal

Radiation induced degradation of dyes—An overview

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Abstract.
Synthetic dyes are amajor part of our life. Products ranging fromclothes to leather accessories to furniture
all depend on extensive use of organic dyes. An unfortunate side effect of extensive use of these chemicals
is that huge amounts of these potentially carcinogenic compounds enter our water supplies. Various
advanced oxidation processes (AOPs) including the use of high-energy radiation have been developed to
degrade these compounds. In this review, dye decoloration and degradation as a result of its exposure
to high energy radiation such as gamma radiation and pulsed electron beam are discussed in detail.
The role of various transient species such as •H, •OH and eaq− are taken into account as reported by
various researchers. Literature citations in this area show that eaq− is very effective in decolorization but
is less active in the further degradation of the products formed. The degradation of the dyes is initiated
exclusively by •OH attack on electron-rich sites of the dye molecules. Additionally, various parameters
that affect the efficiency of radiation induced degradation of dyes, such as effect of radiation dose, oxygen, pH, hydrogen peroxide, added ions and dye classes are also reviewed and summarized. Lastly, pilot plant application of radiation for wastewater treatment is briefly discussed.

Keywords:
Advanced oxidation process
Degradation
Dosimeters
Dyes
Radiation

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 166 (2009) 6–16

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

LINGKUNGAN HIDUP

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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