Synthesis and structural, optical, and magnetic properties of Mn-doped CdS quantum dots prepared by chemical precipitation method

2021 ◽  
Author(s):  
R. S. Ibrahim ◽  
A. A. Azab ◽  
A. M. Mansour
Keyword(s):  
Quantum Dots ◽  
Magnetic Properties ◽  
Chemical Precipitation ◽  
Chemical Precipitation Method ◽  
Precipitation Method ◽  
Cds Quantum Dots ◽  
Optical And Magnetic Properties ◽  
Mn Doped

scholarly journals Impact of Iron on the Fe–Co–Ni Ternary Nanocomposites Structural and Magnetic Features Obtained via Chemical Precipitation Followed by Reduction Process for Various Magnetically Coupled Devices Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 341
Author(s):  
Tien Hiep Nguyen ◽  
Gopalu Karunakaran ◽  
Yu.V. Konyukhov ◽  
Nguyen Van Minh ◽  
D.Yu. Karpenkov ◽  
...  
Keyword(s):  
Particle Size ◽  
Magnetic Properties ◽  
Reduction Process ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
Magnetic Characteristics ◽  
Reduction Temperature ◽  
Fe Content ◽  
Magnetic Features ◽  
Co Precipitation

This paper presents the synthesis of Fe–Co–Ni nanocomposites by chemical precipitation, followed by a reduction process. It was found that the influence of the chemical composition and reduction temperature greatly alters the phase formation, its structures, particle size distribution, and magnetic properties of Fe–Co–Ni nanocomposites. The initial hydroxides of Fe–Co–Ni combinations were prepared by the co-precipitation method from nitrate precursors and precipitated using alkali. The reduction process was carried out by hydrogen in the temperature range of 300–500 °C under isothermal conditions. The nanocomposites had metallic and intermetallic phases with different lattice parameter values due to the increase in Fe content. In this paper, we showed that the values of the magnetic parameters of nanocomposites can be controlled in the ranges of MS = 7.6–192.5 Am2/kg, Mr = 0.4–39.7 Am2/kg, Mr/Ms = 0.02–0.32, and HcM = 4.72–60.68 kA/m by regulating the composition and reduction temperature of the Fe–Co–Ni composites. Due to the reduction process, drastic variations in the magnetic features result from the intermetallic and metallic face formation. The variation in magnetic characteristics is guided by the reduction degree, particle size growth, and crystallinity enhancement. Moreover, the reduction of the surface spins fraction of the nanocomposites under their growth induced an increase in the saturation magnetization. This is the first report where the influence of Fe content on the Fe–Co–Ni ternary system phase content and magnetic properties was evaluated. The Fe–Co–Ni ternary nanocomposites obtained by co-precipitation, followed by the hydrogen reduction led to the formation of better magnetic materials for various magnetically coupled device applications.

Effect of Gd doping on structural, surface and optical properties of ZnS prepared by chemical precipitation method

Optik ◽  
2017 ◽  
Vol 136 ◽  
pp. 259-264 ◽  
Author(s):  
Manivannan N. ◽  
Chandar Shekar B. ◽  
Senthil Kumaran C.K. ◽  
Sathyamoorthy R.
Keyword(s):  
Optical Properties ◽  
Chemical Precipitation ◽  
Chemical Precipitation Method ◽  
Precipitation Method ◽  
Structural Surface

Synthesis and photocatalytic properties of magnetic separable and recyclable p-n heterojunction CoFe2O4/Bi12O17Cl2 photocatalyst

CrystEngComm ◽  
2021 ◽  
Author(s):  
Kexin Fang ◽  
Lei Shi ◽  
Lishuang Cui ◽  
Chunwei Shi ◽  
Weiwei Si
Keyword(s):  
Chemical Precipitation ◽  
Photocatalytic Properties ◽  
Chemical Precipitation Method ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Crystallinity

A series of CoFe2O4/Bi12O17Cl2 (CFO/Bi12O17Cl2) nanocomposites have been prepared by chemical precipitation method. The result of X-ray diffraction showed that CFO/Bi12O17Cl2 composites had high crystallinity. It was found that CoFe2O4...

Optical and magnetic properties of Mn doped ZnO thin films grown by SILAR method

2012 ◽  
Vol 24 (6) ◽  
pp. 1782-1787 ◽  
Author(s):  
S. Balamurali ◽  
R. Chandramohan ◽  
N. Suriyamurthy ◽  
P. Parameswaran ◽  
M. Karunakaran ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Zno Thin Films ◽  
Silar Method ◽  
Optical And Magnetic Properties ◽  
Doped Zno ◽  
Mn Doped

scholarly journals Impact of Reducing Agent on the Synthesis of Nickel Oxide Nanoparticles by Chemical Precipitation Method

2021 ◽  
Vol 10 (1) ◽  
pp. 14-18
Author(s):  
V.Kayathri V.Kayathri ◽  
K.Kousalya K.Kousalya ◽  
A.Mafeena A.Mafeena ◽  
M.Monisha M.Monisha ◽  
S.Naga Nandhini S.Naga Nandhini ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Chemical Precipitation ◽  
Reducing Agent ◽  
Chemical Precipitation Method ◽  
Precipitation Method ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles
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