Preparation method for octahedral CuFeO2 material
An octahedron, cuso4·5h2o technology, applied in chemical instruments and methods, inorganic chemistry, iron compounds, etc., can solve the problems of complex operation, long reaction time, high energy consumption, etc., achieve high-efficiency photoelectrochemical performance, short reaction time, Simple operation effect
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Embodiment 1
[0031] Synthesis of octahedral CuFeO by hydrothermal method 2 Particles, the specific steps of the method are as follows:
[0032] Weigh 1 mmol CuSO 4 ·5H 2 O and FeSO 4 ·7H 2 O, made into 20 ml solution, then weighed 2 mmol anhydrous citric acid, added to the previous 20 ml mixed solution, continued to weigh 0.1 g PVP and added to the mixed solution, after ultrasonic stirring, the formed mother liquor was transferred into a 30 ml reactor; weigh 50 mmol NaOH, dissolve it in 10 ml of water, then add the NaOH solution into the reactor, react in an oven at 160 °C for 6 h, wash the product several times with alcohol, and transfer it to a 60 ℃ oven drying for 6h to obtain the product.
[0033] figure 1 It is a scanning electron microscope picture of the product prepared in Example 1 of the present invention, and it can be seen from the figure that the shape of the sample is an octahedral structure.
[0034] figure 2 It is the powder X-ray diffraction spectrogram of the mat...
Embodiment 2
[0036] Synthesis of octahedral CuFeO by hydrothermal method 2 Particles, the specific steps of the method are as follows:
[0037] Weigh 1 mmolCuSO 4 ·5H 2 O and FeSO 4 ·7H 2 O, made into 20 ml solution, then weighed 2 mmol anhydrous citric acid, added to the previous 20 ml mixed solution, continued to weigh 0.5 g PVP and added to the mixed solution, after ultrasonic stirring, the mother liquor formed was transferred to into a 30 ml reactor; weigh 80 mmol NaOH, dissolve it in 10 ml of water, then add the NaOH solution into the reactor, react in an oven at 160 °C for 6 h, wash the product several times with alcohol, and then transfer it to Dry in an oven at 60°C for 6h to obtain the product
[0038] image 3 It is a scanning electron microscope picture of the product prepared in Example 2 of the present invention, and it can be seen from the figure that the shape of the sample is an octahedral structure.
[0039] Figure 4 It is the powder X-ray diffraction spectrogram ...
Embodiment 3
[0041] Preparation of Octahedral CuFeO by Thermal Synthesis 2 Particles, the specific steps of the method are as follows:
[0042] Weigh 1 mmolCuSO 4 ·5H2 O and FeSO 4 ·7H 2 O, made into 20 ml solution, then weighed 2 mmol trisodium citrate trihydrate, added to the previous 20 ml mixed solution, continued to weigh 0.5 g PVP and added to the mixed solution, after ultrasonic stirring, the formed The mother liquor was transferred to a 30 ml reaction kettle; 80 mmol NaOH was weighed and dissolved in 10 ml of water respectively, and then the NaOH solution was added to the reaction kettle respectively, and reacted in an oven at 160 °C for 6 h. After washing, it was transferred to an oven at 60 °C for 6 h to obtain the product.
[0043] Figure 5 It is a scanning electron microscope picture of the product prepared in Example 3 of the present invention. It can be seen from the figure that the shape of the sample is an octahedral structure.
[0044] Image 6 It is the powder X-r...
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