Porous carbon material based on eupatorium adenophorum as well as preparation method and application of porous carbon material
A porous carbon material, Eupatorium adenophorum technology, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of environmental protection and preparation difficulties, and achieve good removal effect, The environmental protection effect of the preparation process
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[0028] Embodiment 1: based on the preparation method of Erythrina japonica porous carbon material, the steps are as follows:
[0029] The stems of Euratopsica chinensis were cut into inch-long sections, rinsed and dedusted, then soaked in 5wt% HCl solution for 2 days and then washed with distilled water to remove HCl; after drying at 90°C in an oven, placed in a tube furnace under nitrogen Under the atmosphere, the temperature is raised to 350°C at a rate of 5°C / min for 2 hours, and then heated to 900°C for carbonization for 5 hours, to obtain the porous carbon material based on Erythrina japonica.
[0030] figure 1 EDS image of the prepared porous carbon material. Depend on figure 1 It can be seen that the prepared porous carbon material only contains C and O elements, and does not contain other impurity elements. It shows that a small amount of metal elements inherent in the stem of Bauhinia japonica has been eluted by HCl solution, and carbon materials without metal ions...
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[0033] Example 2: Using the porous carbon material prepared in Example 1 based on Rhododendron chinensis for the adsorption of phenol in water.
[0034] An aqueous solution with an initial concentration of 100 mg / L of phenol was selected, the dosage of porous carbon material was changed to 0.2-0.7 g / L, and the adsorption time was 12 h to investigate the adsorption of phenol by the adsorbent; the effect of the adsorbent of porous carbon material on adsorption is as follows: Figure 4 shown. from Figure 4It can be clearly seen that with the increase of the amount of porous carbon material adsorbent, the adsorption rate of phenol increases, and the adsorption rate reaches the maximum when the amount of porous carbon material adsorbent is equal to 0.5 g / L, and then the adsorption tends to balance. The adsorption amount of phenol showed a significant downward trend with the increase of the amount of porous carbon material adsorbent. This is because the increase of the amount of p...
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