A preparation method of cobalt-modified porous biochar catalyst for mercury removal
A biochar and catalyst technology, which is applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as uneven dispersion of active components, and achieve a simple and convenient synthesis method, mild reaction conditions, huge The effect of specific surface area
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Embodiment 1
[0025]The raw wood was cut into small pieces of 1cm×1cm, treated with magnetic stirring in deionized water at 90°C for 6h to remove debris and impurities on the surface, and dried in an oven at 100°C for 24h. Take 5.3115g cobalt acetate and 1.8325g ethanolamine to prepare 0.3mol / L cobalt acetate solution (solution A) and 0.3mol / L ethanolamine solution (solution B) respectively; take 30mL solution A and 30mL solution B in a beaker, add etc. A certain amount of absolute ethanol was mixed, and the resulting mixed solution was stirred in a water bath at 60° C. for 2 hours to obtain a uniform colloidal solution. Take 1 g of pretreated wood strip slices on a petri dish, use a syringe to take 2 mL of colloid solution and evenly coat the surface of wood strips, treat it in a vacuum oven at 30 °C for 1 h, and then dry it in an oven at 90 °C for 1.5 h. The process cycle is performed three times. Get 1.4604g cobalt nitrate and 0.7g urotropine, respectively prepare 0.05mol / L cobalt nitra...
Embodiment 2
[0027] The raw wood was cut into small pieces of 1cm×1cm, treated with magnetic stirring in deionized water at 90°C for 6h to remove debris and impurities on the surface, and dried in an oven at 100°C for 24h. Take 5.3115g cobalt acetate and 2.75g ethanolamine to prepare 0.3mol / L cobalt acetate solution (solution A) and 0.3mol / L ethanolamine solution (solution B) respectively; take 30mL solution A and 30mL solution B in a beaker, add etc. A certain amount of absolute ethanol was mixed, and the resulting mixed solution was stirred in a water bath at 60° C. for 2 hours to obtain a uniform colloidal solution. Take 1 g of pretreated wood strip slices on a petri dish, use a syringe to take 2 mL of colloid solution and evenly coat the surface of wood strips, treat it in a vacuum oven at 30 °C for 1 h, and then dry it in an oven at 90 °C for 1.5 h. The process cycle is performed three times. Get 1.4604g cobalt nitrate and 0.7g urotropine, respectively prepare 0.05mol / L cobalt nitrat...
Embodiment 3
[0029] The raw wood was cut into small pieces of 1cm×1cm, treated with magnetic stirring in deionized water at 90°C for 6h to remove debris and impurities on the surface, and dried in an oven at 100°C for 24h. Take 5.3115g cobalt acetate and 3.655g ethanolamine to prepare 0.3mol / L cobalt acetate solution (solution A) and 0.3mol / L ethanolamine solution (solution B) respectively; take 30mL solution A and 30mL solution B in a beaker, add etc. A certain amount of absolute ethanol was mixed, and the resulting mixed solution was stirred in a water bath at 60° C. for 2 hours to obtain a uniform colloidal solution. Take 1 g of pretreated wood strip slices on a petri dish, use a syringe to take 2 mL of colloid solution and evenly coat the surface of wood strips, treat it in a vacuum oven at 30 °C for 1 h, and then dry it in an oven at 90 °C for 1.5 h. The process cycle is performed three times. Get 1.4604g cobalt nitrate and 0.7g urotropine, respectively prepare 0.05mol / L cobalt nitra...
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