A titanium dioxide-diatom mud composite material method for indoor photocatalytic degradation of formaldehyde prepared by biological template
A biological template, catalytic degradation technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve problems such as difficulty in recycling
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Embodiment 1
[0044] Take 1000g of diatomite ore, add 1500mL of water and 5g of sodium hydroxide, stir and disperse for 30 minutes with a stirrer in the laboratory, and separate impurities such as grass roots and bark with a 50-mesh sieve; then the obtained product is gravity settled overnight in a plastic basin, and then The ore pulp was separated by a sedimentation centrifuge for 15 minutes, stirred at 90°C for 4 hours, filtered and washed; then roasted at 600°C for 4 hours. Choose diatomaceous earth.
[0045] Take fresh cattails, wash them, remove dead leaves, and check out fresh plants, leaves and roots. Take out the washed stems and cut them into pieces of a certain size, about 1000g. And first soak overnight with 2.5% glutaraldehyde, then soak with 5% HCl, and finally use 30%, 60%, 90%, 100% ethanol to carry out gradient dehydration, and the amount of ethanol used each time should be enough to completely submerge Templates are better. Add Ti precursor solution (TTIP: ethanol: acety...
Embodiment 2
[0048] Take 1000g of diatomite ore, add 1500mL of water and 5g of sodium hydroxide, stir and disperse for 30 minutes with a stirrer in the laboratory, and separate impurities such as grass roots and bark with a 50-mesh sieve; then the obtained product is gravity settled overnight in a plastic basin, and then The ore pulp was separated by a sedimentation centrifuge for 15 minutes, stirred at 90°C for 4 hours, filtered and washed; then roasted at 600°C for 4 hours. Choose diatomaceous earth.
[0049] Take fresh cattails, wash them, remove dead leaves, and check out fresh plants, leaves and roots. Take out the washed roots and cut them into pieces of a certain size, about 1000g. And first soak overnight with 2.5% glutaraldehyde, then soak with 5% HCl, and finally use 30%, 60%, 90%, 100% ethanol to carry out gradient dehydration, and the amount of ethanol used each time should be enough to completely submerge Templates are better. Add Ti precursor solution (TTIP: ethanol: acety...
Embodiment 3
[0052] Take 1000g of diatomite ore, add 1500mL of water and 5g of sodium hydroxide, stir and disperse for 30 minutes with a stirrer in the laboratory, and separate impurities such as grass roots and bark with a 50-mesh sieve; then the obtained product is gravity settled overnight in a plastic basin, and then The ore pulp was separated by a sedimentation centrifuge for 15 minutes, stirred at 90°C for 4 hours, filtered and washed; then roasted at 600°C for 4 hours. Choose diatomaceous earth.
[0053] Take fresh cattails, wash them, remove dead leaves, and check out fresh plants, leaves and roots. Take out the washed leaves and cut them into pieces of a certain size, about 1000g. And first soak overnight with 2.5% glutaraldehyde, then soak with 5% HCl, and finally use 30%, 60%, 90%, 100% ethanol to carry out gradient dehydration, and the amount of ethanol used each time should be enough to completely submerge Templates are better. Add Ti precursor solution (TTIP: ethanol: acet...
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Abstract
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