Preparation of (Fe, Ni)-Codoped ZnO and Its Photocatalytic Activity for Deg-radation of Methyl Orange

Fu, Tianhua; Gao, Qiang; Liu, Fei; Dai, Huajun; Kou, Xingming

doi:10.3724/sp.j.1088.2010.91220

Cited by 4 publications

(5 citation statements)

References 14 publications

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“…( ) Zn OH − and 2 g( ) A OH − in the hydrothermal environment of the high temperature and pressure, intermolecular dehydration occurs, Zn-O-Ag molecular bond force forms ZnO/Ag2O nuclei, in strong alkaline environment, gradually grow into nano particles reported consistent with the literature [3,4] . As can be seen from Fig.…”

Section: X-ray Diffraction (Xrd) Analysissupporting

confidence: 87%

“…ZnO has a wide band gap (3.37eV), and it is a good semiconductor photocatalyst. Because of its stable chemical properties, low cost, and non-toxic, it has been widely used in the field of photocatalysis [2][3]. However, the spectral response range of ZnO is narrow, and it has low utilization of visible light and larger probability of the photo-generated electron and hole recombination, which limit its application in photocatalytic.…”

Section: Introductionmentioning

confidence: 99%

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Preparation Nano-Sized ZnO/Ag Particles and Photocatalytic Degradation of UDMH Wastewater

Jia

Liang

et al. 2014

AMR

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Different morphologies of nanoZnO have been synthesized by hydrothermal method and ethanol-assisted hydrothermal method, the quantum yield has been improved by noble metal doping, and also the range of spectral absorption has been widened. Then the products are used in the photocatalytic process of UDMH waste water. It is found that the crystallite size of the products is about 41~46nm, the maximum degradation rates of ZnO/Ag are 92.7% under the ultraviolet light, and 80.2% under the sunlight. The variation of the photocatalytic middle-product under different light sources is analyzed and it is found that the middle-product is decomposed more quickly and throughly under sunlight.

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Section: X-ray Diffraction (Xrd) Analysissupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Preparation Nano-Sized ZnO/Ag Particles and Photocatalytic Degradation of UDMH Wastewater

Jia

Liang

et al. 2014

AMR

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“…In recent times, designing photocatalysts that can be activated by visible light is one of the major research areas in order to efficiently and costeffectively utilize them using the sunlight. Activation of wide bandgap metal oxide photocatalysts under visible light irradiation can be achieved in various ways, among which doping with transition metals, [4][5][6] creating intermediate defects, 7,8 sensitizing with visible light active dyes or other semiconductors materials, [9][10][11] narrow bandgap semiconductor coupling [12][13][14] etc. are some of the commonly used methods.…”

Section: Introductionmentioning

confidence: 99%

Role of surface defects on visible light enabled plasmonic photocatalysis in Au–ZnO nanocatalysts

et al. 2015

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Visible light photocatalytic activity of the plasmonic gold-zinc oxide (Au-ZnO) nanorods (NRs) is investigated with respect to the surface defects of the ZnO NRs, controlled by annealing the NRs in ambient at different temperatures. IntroductionPhotocatalysis by nanostructured metal oxides has been extensively explored in the past due to the potential application in controlling the environmental pollutants for complete mineralization. AbstractVisible light photocatalytic activity of the plasmonic gold-zinc oxide (Au-ZnO) nanorods (NRs) is investigated with respect to the surface defects of the ZnO NRs, controlled by annealing the NRs in ambient at different temperatures. Understanding the role of surface defects on the charge transfer behaviour across a metal-semiconductor junction is vital for efficient visible light active photocatalysis. Au nanoparticles (NPs) are in situ deposited on the surface of the ZnO NRs having different surface defect densities, demonstrating efficient harvesting of visible light due to the surface plasmon absorption. The surface defects in the ZnO NRs are probed by using photoluminescence (PL) spectroscopy, X-ray photoemission spectroscopy (XPS), and photo-electro-chemical current-voltage measurements to study the photo-generated charge transfer efficiency across the Au-ZnO Schottky interface. The results show that the surface situated oxygen vacancy sites in the ZnO NRs significantly reduce the charge transfer efficiency across the Au-ZnO Schottky interfaces lowering the photocatalytic activity of the system. Reduction in the oxygen vacancy sites through annealing the ZnO NRs resulted in the enhancement of visible light enabled photocatalytic activity of the Au-ZnO plasmonic nanocatalyst, adding vital insight towards the design of efficient plasmonic photocatalysts. rsc_RA_c5ra16569e higher surface-to-volume ratios resulting in improved catalytic activity compared to their bulk counterparts. Metal oxides, for example, titanium dioxide (TiO 2 ), zinc oxide (ZnO), etc. are commonly used as photocatalysts, and are typically active under ultra-violet (UV) light due to their wide band gap energies. In recent times, designing photocatalysts that can be activated by visible light is one of the major research areas in order to efficiently and cost-effectively utilize them using the sunlight. Activation of wide bandgap metal oxide photocatalysts under visible light irradiation can be achieved in various ways, among which doping with transition metals, 4-6 creating intermediate defects, 7,8 sensitizing with visible light active dyes or other semiconductors materials, 9-11 narrow bandgap semiconductor coupling 12-14 etc. are some of the commonly used methods.Sensitizing the metal oxide photocatalysts with noble metal NPs to harvest visible light utilizing the surface plasmon resonance (SPR) absorption of the metallic NPs, and hence the name plasmonic photocatalysis, is emerging as a new area for designing smart photocatalysts. 15,16 Plasmonic photocatalysis typically involves distribution of ...

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“…Zinc oxide co-doped with Fe and Ni was reported for the photocatalytic degradation of methyl orange in a paper by Fu and colleagues. 427 The usual suite of techniques was used to characterise these materials.…”

Section: Catalystsmentioning

confidence: 99%

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Carter

Fisher

Goodall

et al. 2011

J. Anal. At. Spectrom.

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Metals 1.1 Ferrous metals and alloys 1.2 Non-ferrous metals and alloys 2 Chemicals 2.1 Petroleum and petroleum products 2.1.1 Petroleum products -gasoline, diesels, gasohol, exhaust particulates 2.1.2 Fuel -coal, fly ash, particulates/emissions 2.1.3 Oils -crude oil, lubricants 2.1.4 Alternative fuels 2.2 Organic chemicals and solvents 2.2.1 The analysis of archaeological and art objects 2.2.2 LIBS and other laser techniques 2.2.3 Mass spectrometric techniques 2.2.4 Ion beam techniques 2.2.5 Speciation 2.2.6 Extraction, preconcentration and sample introduction 2.3 Inorganic chemicals and acids 2.3.1 Reviews, overviews and CRMs 2.3.2 Cements, concretes and plasters 2.3.3 Matrix modifiers 2.3.4 Forensic applications 2.3.5 Other applications 2.3.6 The analysis of nano-structures 2.3.6.1 Reviews and CRMs 2.3.6.2 Methods of analysis 2.4 Nuclear materials 2.4.1 Reviews and overviews 2.4.2 Nuclear forensic and safeguards applications 2.4.3 Other nuclear applications 3 Advanced materials 3.1 Polymeric materials and composites

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Preparation of (Fe, Ni)-Codoped ZnO and Its Photocatalytic Activity for Deg-radation of Methyl Orange

Cited by 4 publications

References 14 publications

Preparation Nano-Sized ZnO/Ag Particles and Photocatalytic Degradation of UDMH Wastewater

Preparation Nano-Sized ZnO/Ag Particles and Photocatalytic Degradation of UDMH Wastewater

Role of surface defects on visible light enabled plasmonic photocatalysis in Au–ZnO nanocatalysts

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

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