Nitrogen hybridized magnetic ordered mesoporous carbon adsorbent, and preparation method and application thereof
A mesoporous carbon and adsorbent technology, applied in chemical instruments and methods, adsorption water/sewage treatment, inorganic chemistry, etc., can solve the problems of high energy consumption and complicated treatment, achieve good dispersion performance, simple preparation process, and promote The effect of removal
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Embodiment 1
[0033] A nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent, the pore diameter of the nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent is concentrated at 3.8nm, and its surface is partially graphitized, containing magnetic nanoparticles. The magnetic nanoparticles are iron oxide nanoparticles and iron nanoparticles, and the iron oxide is mainly ferric oxide; prepared by the following steps:
[0034] (1) Preparation of mesoporous silicon SBA-15 template:
[0035] First put 4.0g of block copolymer P123 (Pluronic) (manufactured by Sigma, molecular weight: 5800) in 160ml of hydrochloric acid solution with a concentration of 1.54mol / L, and stir in a water bath at 35°C until dissolved, then add 8.6 g tetraethyl orthosilicate (TEOs) to obtain the mixture; the mixture was stirred at 35°C for 20h, then the mixture was transferred to a reaction kettle, and heated at 140°C for 24h to obtain a white precipitate; then the white precipitate was Collect...
Embodiment 2
[0042] Adsorption of heavy metal ions by nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent:
[0043] Taking the solution containing lead ions as an example, using solutions with different initial concentrations of lead ions and different adsorption reaction times, the nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent prepared in Test Example 1 was used to adsorb heavy metals in the solution The ability of ions, considering that the water body contains other ions, in this experiment, 0.01M NaCl was added to all the original aqueous solutions containing lead ions as background ions, and the specific steps for adsorbing heavy metal ions are as follows:
[0044] ⅰ. Prepare 7 groups of 10mL lead-containing ion solutions with a concentration of 50mg / L. Without adjusting the pH of the solution, add 5mg of nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent to the above-mentioned original solution respectively, at about 30°C and 15...
Embodiment 3
[0047] Adsorption of phenolic organic compounds by nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent:
[0048] Taking a phenol-containing solution as an example, using solutions with different initial concentrations of phenol and different adsorption reaction times, the nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent prepared in Test Example 1 was used to adsorb phenolic organic compounds in the solution Similarly, considering that other ions are contained in natural water bodies, in this experiment, 0.01M NaCl was added to all the original aqueous solutions containing phenol as background ions, and the specific steps for adsorbing phenolic organics are as follows:
[0049] ⅰ. Prepare 7 groups of 10mL phenol-containing solutions with a concentration of 50mg / L. Without adjusting the pH of the solution, add 5mg of nitrogen-hybridized magnetically ordered mesoporous carbon adsorbent to the above-mentioned original solution respectively, at a...
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