Solar Photocatalytic Decolorization of Two Azo Dye Derivatives, Acid Red 17 and Reactive Red 241 in Aqueous Suspension

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Solar Photocatalytic Decolorization of Two Azo Dye Derivatives, Acid Red 17 and Reactive Red 241 in Aqueous Suspension. / Khan, A.; Mir, Niyaz. A.; Haque, M. M. et al.
In: Science of Advanced Materials, Vol. 5, No. 2, 02.2013, p. 160-165.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Khan, A. ; Mir, Niyaz. A. ; Haque, M. M. et al. / Solar Photocatalytic Decolorization of Two Azo Dye Derivatives, Acid Red 17 and Reactive Red 241 in Aqueous Suspension. In: Science of Advanced Materials. 2013 ; Vol. 5, No. 2. pp. 160-165.

Bibtex

@article{47d86bfd92504d14b056495762315466,

title = "Solar Photocatalytic Decolorization of Two Azo Dye Derivatives, Acid Red 17 and Reactive Red 241 in Aqueous Suspension",

abstract = "The photocatalytic decolorization approach using sunlight has potential applications in the treatment of effluents from textile dye industries. With this aim, the decolorization of two representative commercially used textile azo dye derivatives such as AR17 and RR241 have been investigated under sunlight and atmospheric oxygen in aqueous suspension of titanium dioxide by monitoring the change in concentration using UV-Vis. Spectrophotometry. A detailed decolorization kinetics of both dye derivatives have been investigated under variety of conditions such as type of TiO2 powders (Anatase/Anatase-rutile mixture), catalyst dose, substrate concentration, pH and electron acceptors (H2O2 and KBrO3). The highest decolorization rate for dye derivative AR17 and RR241 were observed at pH 7.5 and 6.0, respectively. The photocatalyst Degussa P25 having 80:20 anatase:rutile mixture was found to be better for the decolorization of both the dyes as compared to two other photocatalysts tested. The decolorization rate was enhanced in the presence of electron acceptors such as H2O2 and KBrO3. Results demonstrated that the decolorization of dyes under sunlight is strongly influenced by different parameters investigated in this paper.",

keywords = "Decolorization, Semiconductor, Acid Red 17, POLLUTANTS, NANOPARTICLES, Titanium Dioxide, PHOTOSENSITIZED DEGRADATION, TEXTILE EFFLUENT, Reactive Red 241, TIO2 THIN-FILMS, VISIBLE-LIGHT, PHOTODEGRADATION, DISPERSIONS, REDUCTION, Textile Dye, RADIATION",

author = "A. Khan and Mir, {Niyaz. A.} and Haque, {M. M.} and M. Muneer and C. Boxall",

year = "2013",

month = feb,

doi = "10.1166/sam.2013.1442",

language = "English",

volume = "5",

pages = "160--165",

journal = "Science of Advanced Materials",

issn = "1947-2935",

publisher = "American Scientific Publishers",

number = "2",

}

RIS

TY - JOUR

T1 - Solar Photocatalytic Decolorization of Two Azo Dye Derivatives, Acid Red 17 and Reactive Red 241 in Aqueous Suspension

AU - Khan, A.

AU - Mir, Niyaz. A.

AU - Haque, M. M.

AU - Muneer, M.

AU - Boxall, C.

PY - 2013/2

Y1 - 2013/2

N2 - The photocatalytic decolorization approach using sunlight has potential applications in the treatment of effluents from textile dye industries. With this aim, the decolorization of two representative commercially used textile azo dye derivatives such as AR17 and RR241 have been investigated under sunlight and atmospheric oxygen in aqueous suspension of titanium dioxide by monitoring the change in concentration using UV-Vis. Spectrophotometry. A detailed decolorization kinetics of both dye derivatives have been investigated under variety of conditions such as type of TiO2 powders (Anatase/Anatase-rutile mixture), catalyst dose, substrate concentration, pH and electron acceptors (H2O2 and KBrO3). The highest decolorization rate for dye derivative AR17 and RR241 were observed at pH 7.5 and 6.0, respectively. The photocatalyst Degussa P25 having 80:20 anatase:rutile mixture was found to be better for the decolorization of both the dyes as compared to two other photocatalysts tested. The decolorization rate was enhanced in the presence of electron acceptors such as H2O2 and KBrO3. Results demonstrated that the decolorization of dyes under sunlight is strongly influenced by different parameters investigated in this paper.

AB - The photocatalytic decolorization approach using sunlight has potential applications in the treatment of effluents from textile dye industries. With this aim, the decolorization of two representative commercially used textile azo dye derivatives such as AR17 and RR241 have been investigated under sunlight and atmospheric oxygen in aqueous suspension of titanium dioxide by monitoring the change in concentration using UV-Vis. Spectrophotometry. A detailed decolorization kinetics of both dye derivatives have been investigated under variety of conditions such as type of TiO2 powders (Anatase/Anatase-rutile mixture), catalyst dose, substrate concentration, pH and electron acceptors (H2O2 and KBrO3). The highest decolorization rate for dye derivative AR17 and RR241 were observed at pH 7.5 and 6.0, respectively. The photocatalyst Degussa P25 having 80:20 anatase:rutile mixture was found to be better for the decolorization of both the dyes as compared to two other photocatalysts tested. The decolorization rate was enhanced in the presence of electron acceptors such as H2O2 and KBrO3. Results demonstrated that the decolorization of dyes under sunlight is strongly influenced by different parameters investigated in this paper.

KW - Decolorization

KW - Semiconductor

KW - Acid Red 17

KW - POLLUTANTS

KW - NANOPARTICLES

KW - Titanium Dioxide

KW - PHOTOSENSITIZED DEGRADATION

KW - TEXTILE EFFLUENT

KW - Reactive Red 241

KW - TIO2 THIN-FILMS

KW - VISIBLE-LIGHT

KW - PHOTODEGRADATION

KW - DISPERSIONS

KW - REDUCTION

KW - Textile Dye

KW - RADIATION

U2 - 10.1166/sam.2013.1442

DO - 10.1166/sam.2013.1442

M3 - Journal article

VL - 5

SP - 160

EP - 165

JO - Science of Advanced Materials

JF - Science of Advanced Materials

SN - 1947-2935

IS - 2

ER -

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