A preparation method of tungsten trioxide for catalytic photodegradation of organic matter
A technology of tungsten trioxide and nano-tungsten trioxide, applied in chemical instruments and methods, tungsten oxide/tungsten hydroxide, separation methods, etc., can solve problems such as limiting the application of metal sulfides, catalyst failure, etc., to solve catalyst problems, low cost effect
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Embodiment 1
[0030] Embodiment 1, this embodiment discloses a preparation method of tungsten trioxide for catalytic photodegradation of organic matter, the specific steps are as follows:
[0031] 1) Under the protection of an inert gas, the alkali metal is completely dissolved in a solvent to obtain an alkali metal solution, wherein the solvent is an organic solvent or liquid ammonia;
[0032] 2) Under the protection of an inert gas, according to parts by weight, disperse 1 part by weight of nano-tungsten trioxide particles in the alkali metal solution of step 1) in 1-10 parts by weight, and stir for 6-10 days to obtain a solid-liquid mixture ;
[0033] 3) The solid-liquid mixture in step 2) is centrifuged, and the solid matter is pickled to remove the residual alkali metal solution on the surface, so as to obtain tungsten trioxide for catalytic photodegradation of organic matter.
[0034] In a specific embodiment, the alkali metal in step 1) is at least one of lithium, sodium, potassium,...
Embodiment 2
[0036] Embodiment 2, this embodiment discloses a preparation method of tungsten trioxide for catalytic photodegradation of organic matter, the specific steps are as follows:
[0037] 1) under the protection of an inert gas, according to the molar ratio metal lithium: ethylenediamine 1: 10, metal lithium is completely dissolved in ethylenediamine to obtain an alkali metal solution;
[0038] 2) Under the protection of an inert gas, according to parts by weight, at room temperature, disperse 1 part by weight of nano-tungsten trioxide particles in 1 part by weight of the alkali metal solution of step 1), and stir for 6 days to obtain a solid-liquid mixture ;
[0039] 3) The solid-liquid mixture in step 2) is centrifuged, and the solid matter is pickled to remove the residual alkali metal solution on the surface, so as to obtain tungsten trioxide for catalytic photodegradation of organic matter.
Embodiment 3
[0040] Embodiment 3, this embodiment discloses a preparation method of tungsten trioxide for catalytic photodegradation of organic matter, the specific steps are as follows:
[0041] 1) Under the protection of an inert gas, according to the molar ratio of calcium metal: liquid ammonia is 1:0.0002, calcium metal is completely dissolved in liquid ammonia to obtain an alkali metal solution;
[0042] 2) Under the protection of an inert gas, and under the condition of keeping liquid ammonia as a liquid (such as standard atmospheric pressure, -34°C), according to parts by weight, disperse 1 part by weight of nano-tungsten trioxide particles in 10 parts by weight 1) in the alkali metal solution, fully stirred for 8 days to obtain a solid-liquid mixture;
[0043] 3) The solid-liquid mixture in step 2) is centrifuged, and the solid matter is pickled to remove the residual alkali metal solution on the surface, so as to obtain tungsten trioxide for catalytic photodegradation of organic m...
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