Hydrate carbon/amorphous molybdenum poly-selenide composite material as well as preparation method and application thereof
A composite material and amorphous technology, applied in chemical instruments and methods, inorganic chemistry, water/sewage treatment, etc., can solve the problems of unsatisfactory palladium adsorption effect, ineffective diffusion, easy agglomeration of molybdenum selenide, etc., and achieve cost Low, excellent removal effect, good hydrophilic effect
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[0039] The present invention provides a preparation method of the hydrated carbon / amorphous molybdenum selenide composite material according to the above technical scheme, which includes the following steps:
[0040] (1) Mix the carbonaceous material and water to perform a hydrothermal carbonization reaction to obtain hydrated carbon;
[0041] (2) Mix selenium and hydrazine hydrate solution to perform oxidation-reduction reaction to obtain selenium anion solution;
[0042] (3) The hydrated carbon, selenium anion solution, ammonium molybdate and organic solvent are mixed, and a solvothermal reaction is carried out to obtain a hydrated carbon / amorphous molybdenum selenide composite material; the temperature of the solvothermal reaction is not less than 140 ℃;
[0043] The steps (1) and (2) have no time sequence.
[0044] In the present invention, unless otherwise specified, all raw material components are commercially available products well known to those skilled in the art.
[0045] The...
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[0067] Example 1
[0068] Crush 1g of discarded cigarette butts to a size of 0.15~0.27mm, mix with 15mL of water, hydrothermally carbonize at 220℃ for 4h, then centrifuge at 10000r / min for 10min, wash the solid components at 110℃ Dry for 15h to obtain hydrated charcoal.
[0069] Under room temperature and stirring conditions of 360 r / min, 0.31 g of selenium powder with a particle size of 45-58 μm and 20 mL of hydrazine hydrate solution (80 wt%) are mixed, and the oxidation reaction is carried out for 12 hours to obtain a selenium anion solution.
[0070] 0.33g of ammonium molybdate tetrahydrate was added to 20mL of ethanol, 50mg of hydrated charcoal was added and mixed uniformly, the selenium anion solution was added dropwise and ultrasonically mixed for 60min, then transferred to the reaction kettle for solvothermal reaction at 140°C for 12h, and cooled to After room temperature, centrifuge for 10 minutes at a speed of 10000r / min, wash the obtained solid components with ethanol 3 t...
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[0071] Example 2
[0072] The hydrated carbon / amorphous molybdenum selenide composite material was prepared according to the method of Example 1. The difference from Example 1 is that the temperature of the solvothermal reaction was 160°C to obtain the hydrated carbon / amorphous molybdenum selenide composite material (abbreviation MoSe x / hydrochar-160).
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