Preparation method and application of a mesoporous silicon-based catalyst supporting iron and cerium
A technology of mesoporous silicon and catalysts, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve problems such as secondary pollution, achieve strong removal ability, prevent sintering, and high catalytic activity
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Embodiment 1
[0030] A preparation method for a mesoporous silicon-based catalyst loaded with iron and cerium, comprising the following steps:
[0031] (1) Put 2g of surfactant P123, 63.95ml of deionized water and 10ml of hydrochloric acid (12M) into a beaker, stir until completely dissolved, add 4.25g of ethyl tetrasilicate TEOS dropwise to it, and mechanically Stir for 24 hours, pour into a hydrothermal kettle, then place the hydrothermal kettle in an oven at 100°C for static crystallization for 24 hours, after cooling, filtering, and drying, place it in a muffle furnace for calcination at 550°C for 6 hours to obtain mesoporous silicon;
[0032] (2) prepare 0.5mol / L cerium nitrate aqueous solution, prepare 0.036mol / L ferric nitrate aqueous solution;
[0033] (3) Take 2g of mesoporous silicon obtained in step (1) and add it to 50ml of the cerium nitrate aqueous solution prepared in step (2), stir for 8 hours, filter and wash, dry in an oven at 80°C for 12 hours, and then place in a muffle ...
Embodiment 2
[0037] A preparation method for a mesoporous silicon-based catalyst loaded with iron and cerium, comprising the following steps:
[0038] (1) Put 2g of surfactant P123, 63.95ml of deionized water and 10ml of hydrochloric acid (12M) into a beaker, stir until completely dissolved, then add 4.25g of ethyl tetrasilicate TEOS dropwise to it, and mechanically Stir for 24 hours, pour into a hydrothermal kettle, then place the hydrothermal kettle in an oven at 100°C for static crystallization for 24 hours, after cooling, filtering, and drying, place it in a muffle furnace for calcination at 550°C for 6 hours to obtain mesoporous silicon;
[0039] (2) prepare 0.5mol / L cerium nitrate aqueous solution, prepare 0.072mol / L ferric nitrate aqueous solution;
[0040] (3) Take 2g of mesoporous silicon obtained in step (1) and add it to 50ml of the cerium nitrate aqueous solution prepared in step (2), stir for 8 hours, filter and wash, dry in an oven at 80°C for 12 hours, and then place in a mu...
Embodiment 3
[0044] A preparation method for a mesoporous silicon-based catalyst loaded with iron and cerium, comprising the following steps:
[0045] (1) Put 2g of surfactant P123, 63.95ml of deionized water and 10ml of hydrochloric acid (12M) into a beaker, stir until completely dissolved, add 4.25g of ethyl tetrasilicate TEOS dropwise to it, and mechanically Stir for 24 hours, pour into a hydrothermal kettle, then place the hydrothermal kettle in an oven at 100°C for static crystallization for 24 hours, after cooling, filtering, and drying, place it in a muffle furnace for calcination at 550°C for 6 hours to obtain mesoporous silicon powder;
[0046] (2) prepare 0.5mol / L cerium nitrate aqueous solution, prepare 0.108mol / L ferric nitrate aqueous solution;
[0047] (3) Take 2g of mesoporous silicon obtained in step (1) and add it to 50ml of the cerium nitrate aqueous solution prepared in step (2), stir for 8 hours, filter and wash, dry in an oven at 80°C for 12 hours, and then place in a ...
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