Enhanced Photocatalytic Activity of ZnO/CuO Nanocomposites Synthesized by Hydrothermal Method

Chang, Tongqin; Li, Zijiong; Yun, Gaoqian; Jia, Yong; Yang, Hongjun

doi:10.5101/nml.v5i3.p163-168

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…We have noted considerable enhancement of the degradation process of humic acid by combined effect of ZnO and H 2 O 2 . We have extended our research by doping ZnO NPs with CuO by hydrothermal method to enhance their photo-catalytic efficiency (Saravanana et al 2013;Chang et al 2013), and tested the application of this composite catalyst for decomposition of humus substances of a local pond water.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle-assisted photo-Fenton reaction for photo-decomposition of humic acid

Banik

Basumallick

2017

Appl Water Sci

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We report here the synthesis of CuO-doped ZnO composite nanomaterials (NMs) by chemical route and demonstrated for the first time that these NMs are efficient catalysts for H 2 O 2-assisted photo-decomposition (photoFenton type catalyst) of humic acid, a natural pollutant of surface water by solar irradiation. This has been explained by faster electron transfer to OH radical at the p-n heterojunction of this composite catalyst. Application of this composite catalyst in decomposing humus substances of local pond water by solar energy has been demonstrated.

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Section: Introductionmentioning

confidence: 99%

Nanoparticle-assisted photo-Fenton reaction for photo-decomposition of humic acid

Banik

Basumallick

2017

Appl Water Sci

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“…When disrupted, the bacteria can no longer produce energy, thus it is eventually killed [5]. On the other hand, Cu nanoparticles, when oxidized to CuO, can also act as promising photocatalysts [6]. CuO, when irradiated with light energy, can release OH radicals and oxygen super anions [6] that can help degrade organic pollutants, odors, and some known pathogens.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, Cu nanoparticles, when oxidized to CuO, can also act as promising photocatalysts [6]. CuO, when irradiated with light energy, can release OH radicals and oxygen super anions [6] that can help degrade organic pollutants, odors, and some known pathogens. CuO is a narrow band gap p-type semiconductor [7].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polyacrylonitrile-Kapok Hollow Microtubes Decorated with Cu Nanoparticles

Agcaoili

Ishihara

Balela

2015

MATEC Web of Conferences

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Abstract.A novel copper (Cu) nanoparticle carrier was fabricated using kapok natural microtubes as a substrate. Cu nanoparticles were grown on a thin polymer film on the surface of the kapok fibers. The polymer film was deposited on the surface of the microtube using a surfactant-assisted polymerization of acrylonitrile monomers. Cetyltrimethyl ammonium bromide (CTAB) was used surfactant. The contact angle decreased from 120.5 to 0 after polyacrylonitrile coating (PAN), which suggests improved hydrophilicity of the kapok fibers. Addition of 1.5 mL acrylonitrile and 0.020 -0.035 g CTAB yielded evenly coated kapok fibers. Cu nanoparticles, with diameters of 82-186 nm, were formed on the surface of the composite by reducing 0.16 M copper sulphate (CuSO 4 ) with hydrazine (N 2 H 4 ) at 70 o C. EDX reveals that more Cu nanoparticles formed on the surface of PAN-kapok composites with 0.035g CTAB due to thicker PAN coating.

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“…The sol-gel derived ZnO layer need usually be annealed under high temperature to decompose of zinc acetate precursor and increase the carrier mobility, which inhibits its application in plastic substrates [9]. Recently, PSCs based on solution-processed ZnO nanoparticles have been developed without high temperature treatment [10,11]. However, synthetic ZnO nanoparticle size and thickness of ZnO electron selective layer need precisely be controlled to gain high performance of PSCs.…”

Section: Introductionmentioning

confidence: 99%

Efficiency Enhancement of Inverted Polymer Solar Cells Using Ionic Liquid-functionalized Carbon Nanoparticles-modified ZnO as Electron Selective Layer

Chen¹,

Zhu²,

Lü³

et al. 2013

Nano-Micro Lett

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ZnO thin film was fabricated on tin-doped indium oxide electrode as an electron selective layer of inverted polymer solar cells using magnetron sputtering deposition. Ionic liquid-functionalized carbon nanoparticles (ILCNs) film was further deposited onto ZnO surfaces by drop-casting ILCNs solution to improve interface properties. The power conversion efficiency (PCE) of inverted polymer solar cells (PSCs) with only ZnO layer was quickly decreased from 2.7% to 2.2% when the thickness of ZnO layer was increased from 15 nm to 60 nm. However, the average PCE of inverted PSCs with ZnO layer modified with ILCNs only decreased from 3.5% to 3.4%, which is comparable to that of traditional PSCs with poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) anode buffer layer. The results suggested that the contact barrier between ZnO layer and poly(3-hexylthiophene) and phenyl-C61-butyric acid methylester (P3HT:PCBM) blended film compared to ZnO bulk resistance can more significantly influence the performance of inverted PSCs with sputtered ZnO layer. The vanishment of negative capacitive behavior of inverted PSCs with ILCNs modified ZnO layer indicated ILCNs can greatly decrease the contact barrier of ZnO/P3HT:PCBM interface.

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Enhanced Photocatalytic Activity of ZnO/CuO Nanocomposites Synthesized by Hydrothermal Method

Cited by 6 publications

References 24 publications

Nanoparticle-assisted photo-Fenton reaction for photo-decomposition of humic acid

Nanoparticle-assisted photo-Fenton reaction for photo-decomposition of humic acid

Preparation of Polyacrylonitrile-Kapok Hollow Microtubes Decorated with Cu Nanoparticles

Efficiency Enhancement of Inverted Polymer Solar Cells Using Ionic Liquid-functionalized Carbon Nanoparticles-modified ZnO as Electron Selective Layer

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