A method for adjusting and controlling the exposed crystal plane of bismuth oxybromide
A bismuth oxybromide nanometer and crystal face technology, applied in chemical instruments and methods, bismuth compounds, inorganic chemistry and other directions, can solve problems such as large waste water and environmental pollution, and achieve the effects of simple control method, good repeatability and high yield
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Embodiment 1
[0024] A method for regulating and controlling the exposed crystal plane of bismuth oxybromide, comprising the steps of:
[0025] 1) ultrasonically dissolve 1 mmol of bismuth nitrate pentahydrate in 25 mL of 0.1 mol / L mannitol aqueous solution, then add 10 ml of 0.1 mol / L sodium bromide aqueous solution for ultrasonic dispersion to obtain a uniform white suspension;
[0026] 2) Transfer the obtained white suspension to a closed reaction kettle, heat to 180°C for 3 hours of constant temperature reaction, after the reaction, carry out centrifugation, washing (washing with pure water and ethanol) and drying (60°C) to obtain Final product (BiOBr nanomaterial).
[0027] The product obtained in this embodiment is analyzed by X-ray diffraction, from figure 1 It can be seen from the figure that the obtained product is completely consistent with the standard card (BiOBr, JCPDS 73-2061), and there is no impurity peak, indicating that the synthesized substance is bismuth oxybromide, and...
Embodiment 2
[0029] A method for regulating and controlling the exposed crystal plane of bismuth oxybromide, comprising the steps of:
[0030] 1) ultrasonically dissolve 1 mmol of bismuth nitrate pentahydrate in 25 mL of 0.5 mol / L mannitol aqueous solution, then add 10 ml of 0.1 mol / L sodium bromide aqueous solution for ultrasonic dispersion to obtain a uniform white suspension;
[0031] 2) Transfer the resulting white suspension to a closed reaction kettle, heat to 200°C for constant temperature reaction for 6 hours, after the reaction, perform centrifugation, washing (washing with pure water and ethanol) and drying (60°C) to obtain BiOBr nanomaterials.
[0032] The test results show that the main exposed crystal plane of the BiOBr nanomaterial obtained in this example is the (001) plane.
Embodiment 3
[0034] A method for regulating and controlling the exposed crystal plane of bismuth oxybromide, comprising the steps of:
[0035] 1) 2mmol of bismuth nitrate pentahydrate was ultrasonically dissolved in 25mL of 0.1mol / L mannitol aqueous solution, and then 4ml of 0.5mol / L sodium bromide aqueous solution was added for ultrasonic dispersion to obtain a uniform white suspension;
[0036] 2) Transfer the obtained white suspension to a closed reaction kettle, heat to 180°C for constant temperature reaction for 6 hours, after the reaction, carry out centrifugation, washing (washing with pure water and ethanol) and drying (60°C) to obtain BiOBr nanomaterials.
[0037] The test results show that the main exposed crystal plane of the BiOBr nanomaterial obtained in this example is the (001) plane.
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