Photoelectrochemical treatment of 1-amino-8-hydroxynaphthalene-3,6-disulphonic acid at electrode covered with TiO/RuO

Socha, A.; Chrześcijańska, Ewa; Kuśmierek, Elżbieta

doi:10.1016/j.dyepig.2005.05.012

Cited by 18 publications

(2 citation statements)

References 13 publications

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“…Table 1 shows that, independently of the treatment and of the catalyst used, the final solution pH is lower than the initial one. According to Socha et al [60], the reaction rate does not depend on pH in the range from 3.5 to 10.…”

Section: Photocatalytic Activity Evaluationmentioning

confidence: 96%

TiO2 thick films supported on stainless steel foams and their photoactivity in the nonylphenol ethoxylate mineralization

Silva

Bortolozzi

Banús

et al. 2016

Chemical Engineering Journal

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Section: Photocatalytic Activity Evaluationmentioning

confidence: 96%

TiO2 thick films supported on stainless steel foams and their photoactivity in the nonylphenol ethoxylate mineralization

Silva

Bortolozzi

Banús

et al. 2016

Chemical Engineering Journal

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“…However, their performances remain moderate and suffer from a loss of charge carriers by recombination and low carrier mobility due to the narrow width of d orbital. Noble metals such Pt, Ag and RuO 2 are commonly used to prevent the charge carrier recombination by acting as electron accumulators which facilitate the electron transfer owing to their low over-voltages (Soonhyun and Soo-Keun 2009;Lou et al 2011;Socha et al 2006). However, these materials are costly but can be easily recovered after use.…”

Section: Introductionmentioning

confidence: 99%

Characterization and application of the hetero-junction ZnFe2O4/TiO2 for Cr(VI) reduction under visible light

2015

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The spinel ZnFe 2 O 4 prepared by nitrate route is used as dispersed photons collector capable to sensitize TiO 2 under visible light and to reduce Cr(VI) into trivalent state. The transport properties, optical and photo-electrochemical characterizations are correlated, to build the energetic diagram of the hetero-system ZnFe 2 O 4 /TiO 2 /CrO 4 solution. A gap of 1.97 eV is obtained for the spinel from the diffuse reflectance. The conduction band of ZnFe 2 O 4 (-1.47 V SCE) favors the electrons injection into TiO 2 , permitting a physical separation of the charge carriers. The oxidation of oxalic acid by photoholes prevents the corrosion of the spinel. The best configuration ZnFe 2 O 4 (75 %)/TiO 2 (25 %) is used to catalyze the downhill reaction (2HCrO 4-? 3C 2 H 4 O 4 ? 1.5O 2 ? 8H ? ? 2Cr 3? ? 6CO 2 ? 11 H 2 O, DG°=-557 kcal mol-1). 60 % of Cr(VI) are reduced after 3 h of visible light illumination and the photoactivity follows a first-order kinetic with a half-life of 70 min. The water reduction competes with the HCrO 4 reduction which is the reason in the regression of the photoactivity; a hydrogen evolution rate of 24 lmol mg-1 h-1 is obtained.

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Biological, Chemical and Photochemical Treatment of Commercially Important Naphthalene Sulphonates

Arslan-Alaton

Ölmez-Hancı

2009

Xenobiotics in the Urban Water Cycle

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Photoelectrochemical treatment of 1-amino-8-hydroxynaphthalene-3,6-disulphonic acid at electrode covered with TiO/RuO

Cited by 18 publications

References 13 publications

TiO2 thick films supported on stainless steel foams and their photoactivity in the nonylphenol ethoxylate mineralization

TiO2 thick films supported on stainless steel foams and their photoactivity in the nonylphenol ethoxylate mineralization

Characterization and application of the hetero-junction ZnFe2O4/TiO2 for Cr(VI) reduction under visible light

Biological, Chemical and Photochemical Treatment of Commercially Important Naphthalene Sulphonates

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