Ozonization water treatment method by taking fluorine-doped manganese dioxide nano composite material as catalyst
A nano-composite material, manganese dioxide technology, applied in the field of environmental catalysis and water treatment, can solve the problems of narrow degradation range, low mineralization rate, slow reaction rate, etc., and achieve the effect of simple and environmentally friendly synthesis process without secondary pollution
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Embodiment 1
[0017] Weigh 9mmol KMnO 4 , Dissolve it in 80mL of water, and stir it evenly with a magnetic stirrer. Weigh 6mmol MnCl 2 4H 2 O was dissolved in 20 mL of water, and then added dropwise at a rate of 2.4 mL / min to the previously dissolved and stirred KMnO 4 in solution. After the dropwise addition is completed, continue to stir for 1 hour, and then add 15 mL of 0.2 mol·L -1 NH 4 The F solution was added dropwise to the aforementioned solution that had been reacted for 1 h. Waiting for NH 4 After all the solution F was added dropwise, after continuing to stir at the same rate for 1 h, the reaction liquid was transferred to a 120 mL hydrothermal reaction kettle, and reacted at 160° C. for 6 h. After the completion of the hydrothermal reaction, the reactor was naturally cooled to room temperature, and the obtained product was washed to neutrality, and dried at 80° C. for 18 hours to obtain the final nanomaterial.
Embodiment 2
[0019] Weigh 9mmol KMnO 4 , Dissolve it in 80mL of water, and stir it evenly with a magnetic stirrer. Weigh 6mmol MnCl 2 4H 2 O was dissolved in 20 mL of water, and then added dropwise at a rate of 2.4 mL / min to the previously dissolved and stirred KMnO 4 in solution. After the dropwise addition is completed, continue to stir for 1 hour, and then add 15 mL of 0.4 mol·L -1 NH 4 The F solution was added dropwise to the aforementioned solution that had been reacted for 1 h. Waiting for NH 4 After all the solution F was added dropwise, after continuing to stir at the same rate for 1 h, the reaction liquid was transferred to a 120 mL hydrothermal reaction kettle, and reacted at 160° C. for 6 h. After the completion of the hydrothermal reaction, the reactor was naturally cooled to room temperature, and the obtained product was washed to neutrality, and dried at 80° C. for 18 hours to obtain the final nanomaterial.
Embodiment 3
[0021] Weigh 9mmol KMnO 4 , Dissolve it in 80mL of water, and stir it evenly with a magnetic stirrer. Weigh 6mmol MnCl 2 4H 2 O was dissolved in 20 mL of water, and then added dropwise at a rate of 2.4 mL / min to the previously dissolved and stirred KMnO 4 in solution. After the dropwise addition is completed, continue to stir for 1 hour, and then add 15 mL of 0.6 mol·L -1 NH 4 The F solution was added dropwise to the aforementioned solution that had been reacted for 1 h. Waiting for NH 4 After all the solution F was added dropwise, after continuing to stir at the same rate for 1 h, the reaction liquid was transferred to a 120 mL hydrothermal reaction kettle, and reacted at 160° C. for 6 h. After the completion of the hydrothermal reaction, the reactor was naturally cooled to room temperature, and the obtained product was washed to neutrality, and dried at 80°C for 18 hours to obtain the final nanomaterial.
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