Near-UV-VIS light induced acid orange 7 bleaching in the presence of SiW12O404- catalyst

Idil Arslan-Alaton; John L. Ferry

doi:10.1016/S1010-6030(02)00185-5

Near-UV-VIS light induced acid orange 7 bleaching in the presence of SiW₁₂O₄₀^4- catalyst

Idil Arslan-Alaton^*
, John L. Ferry

^*Bu çalışma için yazışmadan sorumlu yazar

Çevre Mühendisliği Bölümü

University of South Carolina

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

20 Atıf (Scopus)

Özet

The azo dye acid orange 7 (AO7) was decolourized by SiW₁₂O₄₀^5-, the one-electron photo-chemically reduced form of SiW₁₂O₄₀^4- catalyst, in aqueous solutions of aerated and de-aerated sacrificial electron donor isopropanol. Under our experimental conditions, the AO7 decay rate depended upon the competition between the azo dye and molecular oxygen for SiW₁₂O₄₀^5-. The colour removal rate constant was found as 5.2 × 10⁴ M^-1 s^-1 by applying AO7-O₂ competition kinetics based on a simple kinetic reaction scheme.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	175-181
Sayfa sayısı	7
Dergi	Journal of Photochemistry and Photobiology A: Chemistry
Hacim	152
Basın numarası	1-3
DOI'lar	https://doi.org/10.1016/S1010-6030(02)00185-5
Yayın durumu	Yayınlandı - 20 Eyl 2002

Belgeye Erişim

10.1016/S1010-6030(02)00185-5

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{de51af0f6d4d44e097b5b8903fd5a66c,

title = "Near-UV-VIS light induced acid orange 7 bleaching in the presence of SiW12O404- catalyst",

abstract = "The azo dye acid orange 7 (AO7) was decolourized by SiW12O405-, the one-electron photo-chemically reduced form of SiW12O404- catalyst, in aqueous solutions of aerated and de-aerated sacrificial electron donor isopropanol. Under our experimental conditions, the AO7 decay rate depended upon the competition between the azo dye and molecular oxygen for SiW12O405-. The colour removal rate constant was found as 5.2 × 104 M-1 s-1 by applying AO7-O2 competition kinetics based on a simple kinetic reaction scheme.",

keywords = "Acid orange 7, Competition kinetics, Heteropolyblue, Photochemical treatment, Polyoxometalates, SiWO catalyst, Textile azo dyes",

author = "Idil Arslan-Alaton and Ferry, \{John L.\}",

year = "2002",

month = sep,

day = "20",

doi = "10.1016/S1010-6030(02)00185-5",

language = "English",

volume = "152",

pages = "175--181",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

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TY - JOUR

T1 - Near-UV-VIS light induced acid orange 7 bleaching in the presence of SiW12O404- catalyst

AU - Arslan-Alaton, Idil

AU - Ferry, John L.

PY - 2002/9/20

Y1 - 2002/9/20

N2 - The azo dye acid orange 7 (AO7) was decolourized by SiW12O405-, the one-electron photo-chemically reduced form of SiW12O404- catalyst, in aqueous solutions of aerated and de-aerated sacrificial electron donor isopropanol. Under our experimental conditions, the AO7 decay rate depended upon the competition between the azo dye and molecular oxygen for SiW12O405-. The colour removal rate constant was found as 5.2 × 104 M-1 s-1 by applying AO7-O2 competition kinetics based on a simple kinetic reaction scheme.

AB - The azo dye acid orange 7 (AO7) was decolourized by SiW12O405-, the one-electron photo-chemically reduced form of SiW12O404- catalyst, in aqueous solutions of aerated and de-aerated sacrificial electron donor isopropanol. Under our experimental conditions, the AO7 decay rate depended upon the competition between the azo dye and molecular oxygen for SiW12O405-. The colour removal rate constant was found as 5.2 × 104 M-1 s-1 by applying AO7-O2 competition kinetics based on a simple kinetic reaction scheme.

KW - Acid orange 7

KW - Competition kinetics

KW - Heteropolyblue

KW - Photochemical treatment

KW - Polyoxometalates

KW - SiWO catalyst

KW - Textile azo dyes

UR - https://www.scopus.com/pages/publications/0037144734

U2 - 10.1016/S1010-6030(02)00185-5

DO - 10.1016/S1010-6030(02)00185-5

M3 - Article

AN - SCOPUS:0037144734

SN - 1010-6030

VL - 152

SP - 175

EP - 181

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 1-3