Thermal evolution of morphological, structural, optical and photocatalytic properties of CuO thin films

Sahu, Kavita; Choudhary, Shipra; Khan, Saif; Pandey, Akhilesh; Mohapatra, Satyabrata

doi:10.1016/j.nanoso.2018.12.005

Cited by 62 publications

(15 citation statements)

References 71 publications

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“…11 a, b Decolourization of MB dye with time in three cyclic runs using CS1 and CP2 as photocatalysts, c, d XRD patterns of nanostructured CoFe 2 O 4 photocatalysts CS1 and CP2 after repeated photocatalytic treatments semiconductor photocatalytic material. Sahu et al [52] have shown that CuO thin films prepared using thermal evaporation exhibit efficient photocatalytic activity towards organic dye degradation in water due to improved utilization of light. In our study, the observed enhanced photocatalytic activity of CoFe 2 O 4 nanostructures is mainly because of two factors.…”

Section: Photocatalytic Studiesmentioning

confidence: 99%

Facile synthesis, morphological, structural, photocatalytic and optical properties of CoFe2O4 nanostructures

Bisht

Mohapatra

2019

SN Appl. Sci.

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CoFe 2 O 4 nanostructures were prepared by a facile co-precipitation route using polyvinyl alcohol (PVA) and sodium dodecyl sulphate (SDS) as capping agents. The effects of PVA and SDS concentration on the structural, optical behaviour and photocatalytic response of the prepared CoFe 2 O 4 nanostructures were studied. XRD studies showed cubic spinel structure of CoFe 2 O 4 nanostructures. The crystallite size of CoFe 2 O 4 nanostructures was found to vary from 13 to 19.2 nm with change in PVA and SDS concentration, while the optical band gap varied from 2.2 to 2.31 eV. CoFe 2 O 4 nanostructures prepared using optimal SDS concentration exhibited enhanced photocatalytic performance and efficiently degraded methylene blue in only 20 min of solar illumination. In situ scavenger studies confirmed the photoexcited electrons to be the major active species responsible for the strong photocatalytic performance of CoFe 2 O 4 nanostructures. The observed strong photocatalytic response of nanostructured CoFe 2 O 4 photocatalysts and their simpler magnetic separation capability make them promising for photocatalytic water purification applications.

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Section: Photocatalytic Studiesmentioning

confidence: 99%

Facile synthesis, morphological, structural, photocatalytic and optical properties of CoFe2O4 nanostructures

Bisht

Mohapatra

2019

SN Appl. Sci.

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“…Endüstriyel gelişim, beraberinde hava kirliliği, gürültü kirliliği ve su kirliliğine yol açmıştır [1]. Çevre kirliliğinin en önemlilerinden biri atık suların kirliliğidir.…”

Section: Giriş (Introduction)unclassified

“…Filmlerin fotokatalitik verimliliklerinin yüksek olduğunu gördüler ve boyar maddelerin 90 dakika içinde tamamen bozunmasına yol açtığını belirlediler [15]. Bakır tabanlı ince filmleri üretmek için; sprey piroliz tekniği, spin kaplama, daldırmalı kaplama, termal buharlaştırma, kimyasal buhar biriktirme, sol-jel, kimyasal banyo yöntemi gibi çeşitli teknikler kullanılmıştır [1,[20][21][22][23][24][25]. Nano yapılı bakır oksit parçacık üretmek için birçok yöntem bulunmasına rağmen, çoğu zaman alıcıdır ve oldukça maliyetlidir [26].…”

Section: Giriş (Introduction)unclassified

Bakır oksit ince filmlere bor katkısının metil mavisi üzerindeki fotokatalitik etkisinin araştırılması

Kerli¹,

Kavgacı²

2021

Journal of Boron

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Çalışmamızda, bakır oksit ve bor katkılı bakır oksit ince filmler sprey piroliz yöntemi ile sentezlenmiştir. Bu ince filmlerin fiziksel özelliklerini belirlemek için XRD ve SEM ölçümleri yapılmıştır. XRD sonuçları incelendiğinde filmlerin monoklinik yapıda olduğu görülmüştür. Elde edilen bu ince filmlerin fotokatalitik aktiviteleri incelenmiştir. Fotokatalitik inceleme ksenon lamba altında metil mavisi boyar madde kullanılarak yapılmıştır. Elde edilen sonuçlarda ince filmlerin metil mavisi üzerinde yüksek fotokatalitik bozunma oranlarının olduğunu göstermiştir. Fotokatalitik deney sonuçları, bor katkılama miktarının bozunma verimini ve reaksiyon süresini olumlu etkilediğini göstermiştir. Buradan bor katkılı bakır oksit ince filmlerin metil mavisi için etkili bir fotokatalizör olduğunu gösterdi. Sonuç olarak, bor katkılı bakır oksit ince filmlerin metil mavi boya içeren atık sularda fotokatalitik bozunma için potansiyel aday olduğu kabul edilebilir.

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“…A number of physical and chemical techniques have been reported for the removal of dye compounds such as adsorption, biodegradation, ozonation, iltration, coagulation and advanced oxidation processes such as Fenton's catalytic reaction and Semiconductor photocatalysts Aggarwal (2016). One of the methods for organic dye waste treatments is using photocatalytic process with semiconductors as catalysts and it has received great attention during the last three decades Aggarwal (2016); Kuriakose et al (2015Kuriakose et al ( , 2017; Muthirulan et al (2017); Sahu, Choudhary, et al (2019); Sahu et al (2018); Singh (2015); Singh, Sahu, et al (2017); .…”

Section: Introductionmentioning

confidence: 99%

Copper Oxide Thin Film Synthesis, Characterization and Application as Cathode in Photoelectrocatalytic Cell for Methyl Orange Degradation

Gunawan

Haris

Pratista

2021

Int. J. Eng. Tech. Mgmt. Res.

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A copper oxide thin film was synthesized through a copper sheet annealing process that was carried out using a gas stove, furnace and 1000 W tungsten . The product and its response were measured using a and then characterized by XRD, SEM and EDX. Furthermore, the copper oxide was applied as a photocathode in a cell with Platinum (Pt) as the anode for methyl orange degradation, and the thin film annealed at 60 sec produced the highest current density. According to XRD and EDX results, copper oxide structure was dominated by Cu2O, while SEM showed the presence of a Cu2O porous surface. Methyl orange solution degradation also showed the best result for the copper oxide annealed at 60 sec and in all pH variations, while the best degradation was obtained at pH 1.

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Thermal evolution of morphological, structural, optical and photocatalytic properties of CuO thin films

Cited by 62 publications

References 71 publications

Facile synthesis, morphological, structural, photocatalytic and optical properties of CoFe2O4 nanostructures

Facile synthesis, morphological, structural, photocatalytic and optical properties of CoFe2O4 nanostructures

Bakır oksit ince filmlere bor katkısının metil mavisi üzerindeki fotokatalitik etkisinin araştırılması

Copper Oxide Thin Film Synthesis, Characterization and Application as Cathode in Photoelectrocatalytic Cell for Methyl Orange Degradation

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