Co-Precipitation Synthesis and Characterization of Nanocrystalline Zinc Oxide Particles Doped with Cu&amp;lt;sup&amp;gt;2+&amp;lt;/sup&amp;gt; Ions

Mukhtar, Mergoramadhayenty; Munisa, Lusitra; Saleh, Rosari

doi:10.4236/msa.2012.38077

Cited by 32 publications

(27 citation statements)

References 46 publications

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“…As the particle size decreases on doping, the surface to volume ratios become larger which can lead to attachment of more OH groups. Similar behaviour of PL spectra was also found by other workers on doping host ZnO [16].…”

Section: Pl Studysupporting

confidence: 89%

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Structural and optoelectronic properties of glucose capped Al and Cu doped ZnO nanostructures

Patwari

Kalita

Singha

2016

Materials Science-Poland

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Al and Cu doped ZnO nanoparticles are considered as appropriate for modulation of structural and optoelectronic properties. Al atoms are found to substitute the host Zn whereas Cu dopants mainly segregate in grain boundaries and thereby determine the optical properties. The undoped as well as Al and Cu doped ZnO exhibit spherical well defined particles. The spherical nanoparticles change to rod type structures on co-doping. The average particle size decreases on doping what consequently results in an increment in band gap. Blue shift in UV absorption is governed by the functional group of glucose; further blue shift occurring on metal doping may be attributed to Burstein-Moss effect. PL spectra of doped and undoped ZnO show a dominant near band gap UV emission along with visible emission owing to the defects. The PL peak intensity increases on doping with Cu and Al. The linear I-V characteristics indicate the ohmic behavior of ZnO nanostructures.

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Section: Pl Studysupporting

confidence: 89%

“…Aluminium introduces compressive stress and strain whereas Cu develops longitudinal stress and strain on doping and co-doping a sample of ZnO. In case of co-doping, mutual interaction between Cu and Al atoms and their segregation in grain boundaries contribute to longitudinal stress and strain [16,17].…”

Section: Xrd Studymentioning

confidence: 99%

Structural and optoelectronic properties of glucose capped Al and Cu doped ZnO nanostructures

Patwari

Kalita

Singha

2016

Materials Science-Poland

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“…The relatively strong rbonding of Fe in the host lattice of ZnO significantly reduces ZnO nanoparticle dissolution. Conversely, Cu doping is known to strain the ZnO crystal structure (Mukhtar et al 2012), hence leading to increased dissolution of ZnO and shedding of more Zn ?2 ions. Thus, the substitution of Cu in ZnO lattice affects the ionization of ZnO during exposure and these effects are not in line with Fe-doped ZnO.…”

Section: Antibacterial Activitymentioning

confidence: 99%

A comparative study of pure and copper (Cu)-doped ZnO nanorods for antibacterial and photocatalytic applications with their mechanism of action

et al. 2015

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The present study reports the synthesis of pure and Cu-doped ZnO nanorods for antibacterial and photocatalytic applications. The samples were synthesized by simple, low cost mechanical-assisted thermal decomposition process. The synthesized materials were characterized by scanning electron microscopy, UV-Visible spectroscopy, and photoluminescence studies. The antibacterial activity of characterized samples was determined against Gram-positive bacteria such as Staphylococcus aureus and Streptococcus pyogenes and Gram-negative bacteria such as Escherichia coli using shake flask method with respect to time. The significant antibacterial activity was perceived from scanning electron micrographs that clearly revealed bacterial cell lysis resulting in the release of cytoplasmic content followed by cell death. The degradation of methylene blue was used as a model organic dye for photocatalytic activity. The present study demonstrates the superior photocatalytic and antibacterial activity of Cu-doped ZnO nanorods with respect to pure ZnO nanorods.

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“…The intensity behind doping is to modify the properties of nanoparticles. Further, to enhance the magnetization and their utilization in DMS and spintronics, doping of transition metal ions such as Ni, Co, Mn, and Ni are carried out by the researchers [10]. A number of studies have reported on Co doped ZnO nanoparticles [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Co Doping on Structural and Optical Properties of Zinc Oxide Nanoparticles Synthesized by Sol-Gel Method

Vanaja

Rao

2016

ANP

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In the present work Pure and Cobalt (Co) doped Zinc Oxide (ZnO) Nanoparticles were synthesized by Sol-gel method. The effect of Co doping on structural and optical properties of Nanoparticles were investigated using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopic characterization techniques. The XRD spectrum revealed the formation of Wurtzite structure of ZnO. The structural properties of nanoparticles including particle size and lattice strain were calculated from XRD data. SEM shows the morphology of Nanoparticles. The presence of functional groups was analyzed from FTIR spectra. The properties of Cobalt doped zinc oxide nanoparticles prepared through simple cost effective, Sol-gel method can be used in optoelectronics and thermally stable devices.

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Co-Precipitation Synthesis and Characterization of Nanocrystalline Zinc Oxide Particles Doped with Cu<sup>2+</sup> Ions

Cited by 32 publications

References 46 publications

Structural and optoelectronic properties of glucose capped Al and Cu doped ZnO nanostructures

Structural and optoelectronic properties of glucose capped Al and Cu doped ZnO nanostructures

A comparative study of pure and copper (Cu)-doped ZnO nanorods for antibacterial and photocatalytic applications with their mechanism of action

Effect of Co Doping on Structural and Optical Properties of Zinc Oxide Nanoparticles Synthesized by Sol-Gel Method

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