Magnetic-guide self-propelled micro/nano motor based on gamma-Fe2O3/MnO2 and preparation method of micro/nano motor
A micro-nano motor, -fe2o3 technology, applied in chemical instruments and methods, other chemical processes, water/sewage treatment, etc., can solve problems such as not seen, achieve simple preparation process, excellent adsorption performance and recycling performance, The effect of common and easy-to-obtain raw materials
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[0026] Example 1
[0027] Dissolve 0.03 mol of ferric chloride and 0.015 mol of ferric chloride in 50 mL of deionized water, put the kapok fiber at 60°C and ultrasonic for 3 hours, remove the kapok and wash it with deionized water 2-3 times, and put it into freeze-drying The box is dry. Afterwards, the dried sample was sintered under the protection of nitrogen, the temperature was raised to 550°C at 10°C / min and the temperature was kept for 30 min, and the sample was taken out after being cooled to room temperature. Take 4.5 mg of the sintered sample and place it in 25 mL of deionized water ultrasonically to disperse the sintered sample in the solution. Then add 11.06 mg of potassium permanganate to stir to dissolve, and transfer to a 50 ml PTFE hydrothermal reactor. React at 120°C for 2 h, and cool to room temperature after the reaction is complete. The product was centrifuged in a high-speed centrifuge at 3000 rpm for 5 min, washed with deionized water, and at 60°C for 48 h t...
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[0028] Example 2
[0029] By configuring H 2 O 2 Put the solution into γ-Fe 2 O 3 / MnO 2 The micro-nano motor is placed on an optical microscope for shooting, and a magnetic field is applied to control the movement direction of the micro-nano motor.
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