Treatment of textile industry wastewater by supported photocatalysis

Alinsafi, A.; Evenou, Fanny; Abdulkarim, E.M.; Pons, Marie‐Noëlle; Zahraa, Orfan; Benhammou, A.; Yaacoubi, Abdelrani; Nejmeddine, A.

doi:10.1016/j.dyepig.2006.02.024

Cited by 209 publications

(94 citation statements)

References 32 publications

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“…Therefore, destructive treatment methods for the remediation of recalcitrant or hazardous pollutants are currently under investigation. In this direction and taking advantage of high oxidative power of the ·OH radical (2.8 V versus NHE), several advanced oxidation processes (AOPs) such photocatalysis, Fenton and photo-Fenton has been used in the remediation of textile wastewaters [13][14][15].…”

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confidence: 99%

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

2014

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This work focuses in the use of Fenton reagent and UV-irradiation, in a lab-scale experiment, for the treatment of real dye wastewater coming from a Spanish textile manufacturer.Response surface methodology (RSM) and a 2 3 factorial design were used to evaluate the effects of the three independent variables considered for the optimization of the oxidative process: temperature, Fe (II) and H 2 O 2 concentrations, for a textile wastewater generated during a dyeing process with chemical oxygen demand (COD) of 1705 mg·L -1 O 2 at pH = 3. Wastewater degradation was followed in terms of COD decrease.In the optimization, the correlation coefficients for the model (R The combination of Fenton, Fenton-like and photon-Fenton reactions has been proved to be highly effective for the treatment of such a type of wastewaters, and several advantages for the technique application arise from the study. Under these conditions, 120 min of treatment resulted in a 62.9 % and 76.3 % decrease in COD after Fenton and photo-Fenton treatments respectively.

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Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

2014

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“…Industrial wastewater, which is a major cause of pollution, is becoming more and more difficult to treat. The textile industry generates a large amount of wastewater causing pollution from dyestuffs [15,16]. Dyes used in the textile industry are highly toxic and carcinogenic in nature [17].…”

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confidence: 99%

Thermal characterisation of dye-intercalated K-10 montmorillonite ceramics using photoacoustic technique

Joseph¹,

Gopinath

Haridas

et al. 2009

Philosophical Magazine

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“…Much attention has been given to photocatalysis due to its potential to degrade a wide range of recalcitrant organic contaminants into less harmful products at ambient temperature [4][5][6].…”

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confidence: 99%

Plasmonic metal decorated titanium dioxide thin films for enhanced photodegradation of organic contaminants

Nyamukamba

Tichagwa

Ngila

et al. 2017

Journal of Photochemistry and Photobiology A: Chemistry

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Nyamukambo, P. et al. (2017). Plasmonic metal decorated titanium dioxide thin films for enhanced photodegradation of organic contaminants. Pardon Nyamukamba, Lilian Tichagwa, Jane Catherine Ngila and Leslie Petrik Abstract Photocatalysis using titanium dioxide as photocatalyst is an efficient way for the removal of organic contaminants in water using solar energy. In this study, thin films of copper and silver were deposited on fused silica using the thermal evaporation technique. A 100 nm film of titanium dioxide (TiO2) was then deposited on the plasmonic metal films using a sputter coating technique. The opposite order of deposition of the film was also explored. The prepared thin films were fully characterized using high resolution scanning electron microscopy (HRSEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and Rutherford backscattering spectrometry (RBS). The effect of plasmonic metal film thickness, order of deposition and the use of bimetallic layers on the photocatalytic activity of the TiO2 photocatalyst was evaluated using methyl orange as a model pollutant. It was shown that, the increase in Ag film thickness underneath the TiO2 film increased the photocatalytic activity of the TiO2 photocatalyst until an optimum film thickness of 20 nm was attained. In the case of copper, the increase in film thickness above 5 nm led to reduced photocatalytic activity. Silver was found to be a better plasmonic metal than copper in enhancing the photocatalytic activity of TiO2 under UV light illumination. Cu was found to perform better when deposited underneath the TiO2 film whereas Ag performed better when deposited on top of the TiO2 photocatalyst film. The use of bimetallic layers was found to enhance TiO2 photocatalytic activity more than monometallic layers.

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Treatment of textile industry wastewater by supported photocatalysis

Cited by 209 publications

References 32 publications

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

Thermal characterisation of dye-intercalated K-10 montmorillonite ceramics using photoacoustic technique

Plasmonic metal decorated titanium dioxide thin films for enhanced photodegradation of organic contaminants

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