ZnO electrodeposition onto gold from recordable compact discs and its use as photocatalyst under solar irradiation

Silva, L. J. Venturini da; Foletto, Edson Luiz; Dorneles, L. S.; Paz, Diego Silva; Frantz, Tuanny Santos; Gündel, André

doi:10.1590/s0104-66322013000100017

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…Several photodegradation reactions of organic pollutants follow first-order kinetics [27][28][29], which the photodegradation rate (r) in this case can be expressed as first-order with respect to the disappearance of phenol molecules, i.e,…”

Section: Samplesmentioning

confidence: 99%

Synthesis of ternary zinc spinel oxides and their application in the photodegradation of organic pollutant

Anchieta

Sallet

Foletto

et al. 2014

Ceramics International

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Section: Samplesmentioning

confidence: 99%

Synthesis of ternary zinc spinel oxides and their application in the photodegradation of organic pollutant

Anchieta

Sallet

Foletto

et al. 2014

Ceramics International

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“…The electrodeposition method is a type of plating by depositing material on a substrate through electrochemical reduction (Hasan et al, 2019) and has been applied in photocatalyst preparation. Reactive materials developed using this method include Au/ZnO film (da Silva et al, 2013), TiO 2 film (Hachisu et al, 2016), and TiO 2 on a silicon wafer surface (Basheer et al, 2020).…”

Section: Miscellaneous Methodsmentioning

confidence: 99%

Application of visible light active photocatalysis for water contaminants: A review

Sun

O’Connell

2022

Water Environment Research

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Organic water pollutants are ubiquitous in the natural environment arising from domestic products as well as current and legacy industrial processes. Many of these organic water pollutants are recalcitrant and only partially degraded using conventional water and wastewater treatment processes. In recent decades, visible light active photocatalyst has gained attention as a non‐conventional alternative for the removal of organic pollutants during water treatment, including industrial wastewater and drinking water treatment. This paper reviews the current state of research on the use of visible light active photocatalysts, their modified methods, efficacy, and pilot‐scale applications for the degradation of organic pollutants in water supplies and waste streams. Initially, the general mechanism of the visible light active photocatalyst is evaluated, followed by an overview of the major synthesis techniques. Because few of these photocatalysts are commercialized, particular attention was given to summarizing the different types of visible light active photocatalysts developed to the pilot‐scale stage for practical application and commercialization. The organic pollutant degradation ability of these visible light active photocatalysts was found to be considerable and in many cases comparable with existing and commercially available advanced oxidation processes. Finally, this review concludes with a summary of current achievements and challenges as well as possible directions for further research. Practitioner Points Visible light active photocatalysis is a promising advanced oxidation process (AOP) for the reduction of organic water pollutants. Various mechanisms of photocatalysis using visible light active materials are identified and discussed. Many recent photocatalysts are synthesized from renewable materials that are more sustainable for applications in the 21st century. Only a small number of pilot‐scale applications exist and these are outlined in this review.

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“…In recent years, ZnAl 2 O 4 spinel has been largely used as catalyst in several reactions such as degradation of gaseous toluene 8 , ethanol steam reforming 9 , hydroformylation and hydrogenation 3,10 , combustion of soot under NO x /O 2 atmosphere 11 , transesterification of vegetable oil 12 and iso-butane combustion 13 . The photocatalytic degradation of organic pollutants in the water such as dye [14][15][16] , phenol 17 and pesticide 18 using different semiconductor materials has attracted much attention recently. ZnAl 2 O 4 is also a semiconductor material suitable for ultraviolet (UV) photoeletronic application 19 due it wide energy bandgap (about 3.8 eV) 20 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of zinc aluminate (ZnAl2O4) spinel and its application as photocatalyst

et al. 2014

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ZnAl 2 O 4 spinel was synthesized by co-precipitation using ammonia as precipitating agent, followed by thermal treatment at 750 °C. The structural properties of particles were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), differential thermal analysis (DTA), and N 2 adsorption/desorption isotherms (BET) techniques. The photocatalytic activity was evaluated in the degradation of organic pollutant in aqueous solution under sunlight. The results showed that the ZnAl 2 O 4 particles exhibited a mesoporous structure, and a promising photocatalytic activity for the degradation of pollutant molecules.

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ZnO electrodeposition onto gold from recordable compact discs and its use as photocatalyst under solar irradiation

Cited by 10 publications

References 11 publications

Synthesis of ternary zinc spinel oxides and their application in the photodegradation of organic pollutant

Synthesis of ternary zinc spinel oxides and their application in the photodegradation of organic pollutant

Application of visible light active photocatalysis for water contaminants: A review

Synthesis of zinc aluminate (ZnAl2O4) spinel and its application as photocatalyst

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