Adsorption material suitable for seawater desalination and preparation method thereof
A technology of adsorbent and porous material, which is applied in the field of adsorption material and its preparation suitable for seawater desalination, can solve problems such as economic loss and equipment corrosion, and achieve the effects of saving energy, increasing adsorption capacity, and good industrial application prospects
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Embodiment 1
[0033] A. Accurately weigh 1.13g of SBA-15 and place it in a glass bottle, dry it in vacuum at 100°C for 12 hours, use metal sodium to remove water and reflux the toluene until dark blue for collection. After the 250mL three-necked reaction flask was ventilated with nitrogen for 10 minutes, pour the dry SBA-15 into it, add a stirring bar and 20mL dry toluene and start stirring. Mix tetraethoxysilane and dry toluene at a volume ratio of 1:1 to form a 50mL solution, put it in the dropping funnel, add the mixed solution dropwise into the reaction flask, and stir at reflux at 90°C for 24h under the protection of nitrogen.
[0034] B. After the solid obtained by centrifugation was washed with ethanol, the solid was added to 150 mL of 10% (mass percentage concentration) HCl solution, and stirred at room temperature for 12 h. After the reaction was completed and the centrifuged solid was washed several times with deionized water, it was placed in a blast drying oven at 80°C and dried...
Embodiment 2
[0037] A. Accurately weigh 2.08g of SBA-15 and place it in a glass bottle, dry it in vacuum at 100°C for 16 hours, use metal sodium to remove water and reflux the toluene until it is dark blue for collection. After the 250mL three-necked reaction flask was ventilated with nitrogen for 10 minutes, pour the dry SBA-15 into it, add a stirring bar and 20mL dry toluene and start stirring. Mix tetraethoxysilane and dry toluene at a volume ratio of 1:1 to form a 50mL solution, put it in the dropping funnel, add the mixed solution drop by drop into the reaction flask, and stir at reflux at 80°C for 20h under the protection of nitrogen. .
[0038] B. After the solid obtained by centrifugation was washed with ethanol, the solid was added to 150 mL of 10% (mass percentage concentration) HCl solution, and stirred at room temperature for 8 h. After the reaction was completed and the centrifuged solid was washed several times with deionized water, it was placed in a blast drying oven at 80...
Embodiment 3
[0041] A. Accurately weigh 4.56g of SBA-15 and place it in a glass bottle, dry it in vacuum at 100°C for 20 hours, use metal sodium to remove water and reflux the toluene until it is dark blue for collection. After the 500mL three-necked reaction flask was ventilated with nitrogen for 15 minutes, pour the dry SBA-15 into it, add a stirring bar and 50mL dry toluene and start stirring. Mix tetraethoxysilane (TEOS) and dry toluene at a volume ratio of 1:1 to form a 100mL solution, put it in the dropping funnel, add the mixed solution drop by drop into the reaction flask, and stir under constant temperature at reflux at 90°C under nitrogen protection 36h.
[0042] B. After the solid obtained by centrifugation was washed several times with ethanol, the solid was added to 300 mL of 10% HCl (mass percentage concentration) solution, and stirred at room temperature for 24 h. After the reaction was completed and the centrifuged solid was washed several times with deionized water, it wa...
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Abstract
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