Preparation method of cobalt carbonate composite bismuth carbonate photocatalyst
A technology of photocatalyst and cobalt carbonate, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems that need to be improved
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Embodiment 1
[0012] Take by weighing 16mmol cobalt nitrate, configure it into a 12mmol / L cobalt nitrate solution, weigh 8mmol sodium carbonate, configure it into a 16mmol / L sodium carbonate solution; mix the above two solutions at a speed of 350 rpm to form a gel The substance was continuously stirred for 3 hours, and sodium carbonate and cobalt nitrate reacted during the stirring process to generate cobalt carbonate colloid; the cobalt carbonate colloid was placed in a semi-permeable membrane bag, washed 3 times with distilled water to remove free ions, and then the cobalt carbonate colloid was The colloid was added to 60 mL of bismuth nitrate solution with a concentration of 0.1 mol / L, soaked for 8 days, and bismuth carbonate nanoparticles were formed on the surface of cobalt carbonate particles, separated from solid and liquid, washed with deionized water twice, and dried at 75°C to obtain A cobalt carbonate composite bismuth carbonate photocatalyst.
[0013] Add 0.5 g of the obtained c...
Embodiment 2
[0015] Take by weighing 12mmol cobalt nitrate, be configured into a 12mmol / L cobalt nitrate solution, weigh 6.6mmol sodium carbonate, and be configured into a 16mmol / L sodium carbonate solution; the above two solutions are mixed at a speed of 400 rpm to form a gel Stir continuously for 4 hours, during the stirring process, sodium carbonate and cobalt nitrate react to generate cobalt carbonate colloid; place cobalt carbonate colloid in a semi-permeable membrane bag, wash 4 times with distilled water, remove free ions, and then the carbonic acid colloid Cobalt colloid was added to 80 mL of bismuth nitrate solution with a concentration of 0.3 mol / L, soaked for 6 days, bismuth carbonate nanoparticles were formed on the surface of cobalt carbonate particles, solid-liquid separation was performed, the solid was washed with deionized water for 3 times, and dried at 105 ° C to prepare A cobalt carbonate composite bismuth carbonate photocatalyst was obtained.
[0016] Add 0.5 g of the ...
Embodiment 3
[0018] Take by weighing 14mmol cobalt nitrate, configure it into a 12mmol / L cobalt nitrate solution, weigh 7mmol sodium carbonate, configure it into a 16mmol / L sodium carbonate solution; mix the above two solutions at a speed of 400 rpm to form a gel The substance was continuously stirred for 4 hours. During the stirring process, sodium carbonate and cobalt nitrate reacted to generate cobalt carbonate colloid; the cobalt carbonate colloid was placed in a semi-permeable membrane bag, washed 4 times with distilled water to remove free ions, and then the cobalt carbonate colloid was The colloid was added to 70 mL of bismuth nitrate solution with a concentration of 0.2 mol / L, soaked for 10 days, and bismuth carbonate nanoparticles were formed on the surface of cobalt carbonate particles, separated from solid and liquid, washed with deionized water for 3 times, and dried at 95°C to obtain A cobalt carbonate composite bismuth carbonate photocatalyst.
[0019] Add 0.5 g of the obtain...
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