Preparation method of nano-cuprous oxide
A nano-cuprous oxide solution technology, which is applied in the chemical industry, can solve the problems of uneven particle size and unstable performance of nano-cuprous oxide, and achieve the effects of good dispersion, uniform appearance, and cheap raw materials
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Embodiment 1
[0022] A preparation method of nano-cuprous oxide is completed according to the following steps:
[0023] (1) CuCl 2 Completely dissolved in deionized water to prepare CuCl 2 solution;
[0024] (2) Control a certain temperature, add additives, stir to make it evenly dispersed in CuCl 2 in solution;
[0025] (3) Add 1.0mol / L NaOH solution dropwise to adjust CuCl 2 Solution pH;
[0026] (4) Add 0.04 g / mL freshly prepared KBH dropwise to the above solution 4 solution, reacted for 4h;
[0027] (5) After the reaction is completed, leave it at room temperature for aging, centrifuge, wash, and dry to obtain dark red Cu 2 O powder.
[0028] CuCl in the present embodiment step (1) 2 The solution concentration is 0.02mol / L.
[0029] The temperature of the water bath in steps (2)(3)(4) of this embodiment is 50-90°C.
[0030] In the present embodiment step (2), the surfactant consumption is every milliliter of CuCl 2 The solution uses 0.0025-0.01 g of a self-made additive for ...
Embodiment 2
[0035] A kind of preparation method of nano cuprous oxide is carried out according to the following steps: (1) take by weighing 3.40gCuCl 2 ?H 2 O is completely dissolved in 200mL of deionized water and prepared as CuCl with a molar concentration of 0.02mol / L 2 solution; (2) under the condition of 70°C water bath, add 1.0 g of homemade additives for adjusting surface tension based on polyvinylpyrrolidone, and stir at a constant speed with a magnetic stirrer until the additives are completely dissolved in CuCl 2 solution, and then continue to stir for 20min; (3) dropwise add 1.0mol / L NaOH solution, adjust CuCl 2 Solution pH, make the solution pH in the range of 4.6-5.0, dropwise adding time 20min; (4) After adding NaOH dropwise, after stirring for 10min, add 0.04g / mL freshly prepared KBH dropwise 4 Solution 10mL, dripping time 20min; continuous 70℃ water bath, stirring at a constant speed for 4h; (5) after the reaction is completed, stand at room temperature and age for 0.5h,...
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