Molybdenum sulfide composite fullerene material and its application in near-infrared light denitrification
A technology of near-infrared light and molybdenum sulfide, which is applied in special compound water treatment, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of cost reduction, simple preparation method, and easy control of conditions
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[0043] An embodiment of the present invention provides a method for preparing a molybdenum sulfide composite fullerene material, comprising the following steps:
[0044] Provide molybdenum sulfide solid;
[0045] The fullerene and molybdenum sulfide solids are mixed uniformly in a solvent to prepare a mixed solution, and then the mixed solution is reacted at a temperature of 100-150° C. for 6-10 hours to prepare the molybdenum sulfide composite fullerene material.
[0046] The embodiment of the present invention also provides the use of the molybdenum sulfide composite fullerene material in the photocatalytic degradation of ammonia nitrogen.
[0047] The embodiment of the present invention also provides a method for degrading ammonia nitrogen, which includes: under near-infrared light irradiation conditions, using the above-mentioned molybdenum sulfide composite fullerene material as a photocatalyst in an alkaline atmosphere to directly catalyze the oxidation of ammonia nitrog...
Embodiment 1
[0059] (1)MoS 2 Preparation: Take 1.21g Na 2 MoO 4 2H 2 O (0.005mol), 1.56g CS (NH 2 ) 2 (0.020mol) was poured into a beaker with a volume of 100mL, stirred until it was completely dissolved, and then transferred to a polytetrafluoroethylene inner sleeve, and deionized water was added to 80% of the total volume to fully dissolve the solid. Put it in a stainless steel outer sleeve, seal it, heat it to 200°C, and react for 24 hours. The samples were then cooled at room temperature and washed with deionized water to remove soluble matter. The obtained black solid was dried in an oven at 40 °C for 6 h, and the prepared MoS 2 semiconductors. see figure 2 The diffraction peaks at 2θ = 14.2°, 33.5°, 39.5° and 59.0° correspond to the MoS 2 (002), (100), (103) and (110) crystal plane indicators, MoS 2 The diffraction peaks are consistent with the standard spectrum (JCPDS37-1492), so it can be determined that the obtained sample is MoS 2 (the space group is ), see Figure...
Embodiment 2
[0067] (1)MoS 2 Preparation: take 1.21gNa 2 MoO 4 2H 2 O (0.005mol), 1.56g CS (NH 2 ) 2 (0.020mol), pour it into a beaker with a volume of 100mL, stir until it is completely dissolved, then transfer it to the inner sleeve of polytetrafluoroethylene, add deionized water to 80% of the total volume, so that the solid is fully dissolved and the inner sleeve Place it in a stainless steel outer sleeve, seal it, heat it to 200°C, and react for 24 hours. The samples were then cooled at room temperature and washed with deionized water to remove soluble matter. The obtained black solid was dried in an oven at 40 °C for 6 h, and the prepared MoS 2 semiconductors. see image 3 As shown, MoS 2 The unit cell is stacked according to the hexagonal symmetry, which belongs to space group ( ), according to the symmetry, MoS 2 Vibrational modes with 4 Raman activities: E. 1g , A 1g , located at 385cm -1 and 408cm -1 The Raman peaks at and A 1g vibration, which further ind...
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