A kind of ni-ni2o3 nanocomposite material
A technology of nanocomposite materials and nanowires, applied in the direction of nanotechnology, inorganic material magnetism, etc., can solve the problems of catalytic activity, Ni ferromagnetism, etc., to improve light absorption performance, improve utilization efficiency and photocatalysis effect, the effect of significant degradation
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Embodiment 1
[0023] 2.37gNiCl 2 ·6H 2 O powder was dissolved in 50ml of ethanol solution, and 0.8g of NaOH was added, and the mixed solution was fully stirred to make the components evenly mixed; 1ml of hydrazine hydrate with a concentration of 80% was added to the mixed solution, and fully stirred evenly; the mixed solution was transferred to 80ml After reacting at 200°C for 2.5 hours in a high-pressure reactor, the reactor was naturally cooled to room temperature; the reactor was opened, and the black precipitate at the bottom was taken out, washed with water, and dried to obtain the final Ni-Ni 2 o 3 nanocomposites.
[0024] The morphology of the powder samples was observed with a 1530VP field emission scanning electron microscope from LEO Company of Germany, and the measurement results are shown in the attached instructions. figure 1shown. It can be seen from the figure that Ni is a nanowire, and Ni 2 o 3 Exist in granular form.
Embodiment 2
[0026] 2.37gNiCl 2 ·6H 2 O powder was dissolved in 50ml of ethanol solution, and 1.12g of KOH was added, and the mixed solution was fully stirred to make the components evenly mixed; 1ml of hydrazine hydrate with a concentration of 80% was added to the mixed solution, and fully stirred evenly; the mixed solution was transferred to 80ml In a high-pressure reactor, after reacting at a temperature of 150°C for 3 hours, the reactor was naturally cooled to room temperature; the reactor was opened, and the black precipitate at the bottom was taken out, washed and dried to obtain the final Ni-Ni 2 o 3 nanocomposites.
[0027] The magnetic hysteresis loop at room temperature was measured with a magnetic measuring instrument (MPMS-9), and the measurement results are as attached to the instruction manual. figure 2 shown. It can be seen from the figure that the material is ferromagnetic at room temperature, and the saturation magnetization is 21.2emu / g.
Embodiment 3
[0029] 2.37gNiCl 2 ·6H 2 O powder was dissolved in 50ml of ethanol solution, and 0.8g of NaOH was added, and the mixed solution was fully stirred to make the components evenly mixed; 1ml of hydrazine hydrate with a concentration of 80% was added to the mixed solution, and fully stirred evenly; the mixed solution was transferred to 100ml In a high-pressure reactor, after reacting at a temperature of 180°C for 2 hours, the reactor was naturally cooled to room temperature; the reactor was opened, and the black precipitate at the bottom was taken out, washed and dried to obtain the final Ni-Ni 2 o 3 nanocomposites.
[0030] The optical absorption spectrum was measured with an ultraviolet-visible spectrophotometer (HITACHIUV-4100) from Hitachi, and the measurement results are as attached to the instruction manual. image 3 shown. It can be seen from the figure that the sample material has strong absorption characteristics in the wavelength range from 350nm to 2300nm.
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