Magnetic cobalt cluster catalyst for degrading triphenylmethane dyes, and preparation method thereof
A triphenylmethane and catalyst technology, applied in the field of magnetic cobalt cluster catalysts and its preparation, can solve the problems of cobalt-free cluster catalysts, etc., and achieve good market application prospects, energy saving and low price effects
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Embodiment 1
[0023] Weigh 0.3 mmol of cobalt nitrate, cobalt acetate and cobalt chloride into 2 mL of DMF, stir magnetically until completely dissolved, then weigh 0.3 mmol of 2-(1-hydroxyethyl) benzimidazole into 10 mL of methanol, magnetically stir Stir until completely dissolved, then mix the two solutions, add 300 μL triethylamine, stir magnetically for 30-45 min, filter the solution into a polytetrafluoroethylene autoclave, and move it to a programmable temperature-controlled electric blast drying oven , reacted at 60 °C for three days, then cooled to 30 °C at a cooling rate of 10 °C / h, filtered the solution and left it for three weeks, a large number of brown triangular crystals could be collected, washed with acetone and then air-dried Dry.
Embodiment 2
[0025] Weigh 0.1 mmol of cobalt nitrate, cobalt acetate and cobalt chloride into 1 mL of DMF, stir magnetically until completely dissolved, then weigh 0.1 mmol of 2-(1-hydroxyethyl) benzimidazole into 5 mL of ethanol, magnetically stir Stir until completely dissolved, then mix the two solutions, add 100 μL triethylamine, stir magnetically for 30-45 min, let the solution stand for 24 hours, filter out the supernatant, seal it with a parafilm and leave it for 3 weeks, the collected Few but well-formed brown triangular crystals, washed with acetone and air dried.
Embodiment 3
[0027] Weigh 1 mmol of cobalt nitrate, cobalt acetate and cobalt chloride into 10 mL of DMF, stir magnetically until completely dissolved, then weigh 1 mmol of 2-(1-hydroxyethyl)benzimidazole into 100 mL of ethanol, magnetically stir Stir until completely dissolved, then mix the two solutions, add 1000 μL triethylamine, stir magnetically for 30-45 min, let the solution stand for 24 hours, filter out the supernatant, seal it with a parafilm and let it stand for 3 weeks, it can be collected Numerous and well-formed brown triangular crystals, washed with acetone and air-dried.
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