Structural Properties of Ga-Doped ZnO Nanoparticles Synthesized by Co-Precipitation Process

2015 ◽  
Vol 165 (1) ◽  
pp. 159-166 ◽  
Author(s):  
K. Chongsri ◽  
W. Pecharapa
Keyword(s):  
Structural Properties ◽  
Zno Nanoparticles ◽  
Precipitation Process ◽  
Doped Zno ◽  
Co Precipitation

Structural and Optical Properties of F-Doped ZnO Nanoparticles Synthesized by Co-Precipitation Process

2016 ◽  
Vol 675-676 ◽  
pp. 69-72
Author(s):  
Krisana Chongsri ◽  
Wanichaya Mekprasart ◽  
Wisanu Pecharapa
Keyword(s):  
Zno Nanoparticles ◽  
Fluoride Concentration ◽  
Precursor Solution ◽  
Hexagonal Wurtzite Structure ◽  
Ammonium Fluoride ◽  
Zinc Nitrate ◽  
Precipitation Process ◽  
Vis Spectroscopy ◽  
Doped Zno ◽  
Co Precipitation

In this work, we reported the preparation of F-doped ZnO nanoparticles by facile precipitation process using zinc nitrate and ammonium fluoride as starting precursors for Zn and F, respectively dissolved in deionized water. The precursor solution was prepared at various fluoride composition ranging from 1-5 wt%. The as-precipitated powders were calcined at different temperature from 500 °C to 700 °C for 2 h. Effect of calcination temperature and fluoride concentration on structural, morphologies, optical and electrical properties were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis spectroscopy, respectively. XRD results indicated the complete formation of hexagonal wurtzite structure of ZnO. SEM micrographs showed the agglomeration for each sample that noticeably influenced by fluoride content.

scholarly journals Multi-band visible photoresponse study of Co2+ doped ZnO nanoparticles

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39657-39665 ◽  
Author(s):  
Anju Anna Jacob ◽  
L. Balakrishnan ◽  
K. Shambavi ◽  
Z. C. Alex
Keyword(s):  
Zno Nanoparticles ◽  
Precipitation Method ◽  
Cobalt Doping ◽  
Characteristic Analysis ◽  
Visible Absorption ◽  
Doped Zno ◽  
Co Precipitation ◽  
Multi Band

Cobalt doping enhances visible absorption in ZnO nanoparticles as a result of d–d transitions. By co-precipitation method, Zn1−xCoxO nanoparticles had been synthesised and multiband photodetectors were fabricated after characteristic analysis.

Magnetism in Mn-doped ZnO nanoparticles prepared by a co-precipitation method

2006 ◽  
Vol 17 (5) ◽  
pp. 1278-1285 ◽  
Author(s):  
O D Jayakumar ◽  
H G Salunke ◽  
R M Kadam ◽  
Manoj Mohapatra ◽  
G Yaswant ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Precipitation Method ◽  
Doped Zno ◽  
Co Precipitation ◽  
Mn Doped

Effective Mass Model Supported Band Gap Variation in Cobalt-Doped ZnO Nanoparticles Obtained by Co-Precipitation

2020 ◽  
Vol 54 (3) ◽  
pp. 311-316 ◽  
Author(s):  
K. P. Misra ◽  
S. Jain ◽  
A. Agarwala ◽  
N. Halder ◽  
S. Chattopadhyay
Keyword(s):  
Band Gap ◽  
Effective Mass ◽  
Zno Nanoparticles ◽  
Mass Model ◽  
Doped Zno ◽  
Co Precipitation ◽  
Effective Mass Model

Photocatalytic Activity of Zeolite Supported Transition Metal-(Co2+ and Cr2+) Doped ZnO: Comparative Study

2015 ◽  
Vol 827 ◽  
pp. 43-48
Author(s):  
Annisa Noorhidayati ◽  
Mia Putri Rahmawati ◽  
Nadia Febiana Djaja ◽  
Rosari Saleh
Keyword(s):  
Transition Metal ◽  
Zno Nanoparticles ◽  
Diffuse Reflectance Spectroscopy ◽  
Uv Light ◽  
Transition Metal Ions ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Doped Zno ◽  
Co Precipitation

Transition metal ions (Co and Cr) doped ZnO nanoparticles supported on natural zeolite were synthesized using co-precipitation method. The synthesized samples were characterized by means of X-ray diffraction, energy dispersive X-ray, Fourier-transform infrared absorption, and UV-visible diffuse reflectance spectroscopy. The samples were further used as photocatalyst for degradation of methyl orange and methylene blue in aqueous solutions under UV light irradiation. The results showed that zeolite supported Cr-doped ZnO nanoparticles is more efficient compared with zeolite supported Co-doped ZnO nanoparticles. It is also revealed that zeolite supported samples possessed higher photocatalytic efficiency compared to bare samples.

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