Persulfate activation method and application thereof
An activation method and persulfate technology, applied in chemical instruments and methods, molybdenum sulfide, oxidized water/sewage treatment, etc., can solve problems such as polluted environment and high energy consumption, and achieve the effect of solving high energy consumption and enriching activation pathways
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Embodiment 1
[0045] The application provides the application example of the activation of the first persulfate, and the specific steps are as follows:
[0046] 1. MoS 2 Preparation of nanoflowers: Sodium molybdate and thiourea were dissolved in ultrapure water, and hydrochloric acid was added dropwise under stirring conditions to make the pH value about 1. The resulting mixed solution was magnetically stirred for 30 min, and then transferred to a Teflon reactor. Black MoS was generated by reacting in a Teflon reactor at 180°C for 24 hours 2 The nanoflower solution was suction filtered and washed three times with ultrapure water and ethanol, and the resulting material was vacuum freeze-dried to obtain MoS 2 Nanoflowers (marked as MoS 2 NFs).
[0047] 2. Design four different systems to measure the removal effect of degraded phenol. The four different systems are:
[0048] a, add potassium monopersulfate in organic pollutant waste water containing phenol and do ultrasonic treatment ( f...
Embodiment 2
[0056] This application provides MoS 2 The preparation method and analysis of nanoflowers, the specific steps are as follows:
[0057] 1. MoS 2 Preparation of nanoflowers: Sodium molybdate and thiourea were dissolved in ultrapure water, and hydrochloric acid was added dropwise under stirring conditions to make the pH value about 1. The resulting mixed solution was magnetically stirred for 30 min, and then transferred to a Teflon reactor. Black MoS was generated by reacting in a Teflon reactor at 180°C for 24 hours 2 The nanoflower solution was suction filtered and washed three times with ultrapure water and ethanol, and the resulting material was vacuum freeze-dried to obtain MoS 2 nanoflowers. Take the MoS of this embodiment 2 Nanoflowers do scanning electron microscope analysis (SEM), the results are as follows figure 2 shown.
[0058] Depend on figure 2 It can be seen from the scanning electron microscope images that the average size of the synthesized material is...
Embodiment 4
[0065] The application provides the application example of the activation of the third persulfate, and the specific steps are as follows:
[0066] Add phenol to deionized water to obtain organic pollutant wastewater to be treated with an initial concentration of phenol of 10mg / L, add 0.1g / L, 0.2g / L, 0.3g / L, 0.4g / L, 0.5g / L respectively MoS of Example 1 2 For nanoflowers, the concentration of potassium monopersulfate is 3.25mmol / L. Ultrasound at a constant temperature of 25°C for 180min. After 180min of reaction, 0.8mL of the solution is taken out and passed through a 0.22μm filter membrane, and 0.2mL of ethanol is added to quench the free radicals. agent to terminate the degradation reaction, stored in a 1.5mL brown liquid phase vial for the determination of phenol concentration, and calculated the reaction time of 180min, each different MoS 2 The degradation efficiency of phenol in the system with the dosage of nanoflowers. The removal effect of phenol in the system with dif...
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Abstract
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