Synthetic method of magnetic mesoporous silica for removing copper ions in water

The invention belongs to the technical field of water pollution treatment application, and particularly relates to a synthetic method of magnetic mesoporous silica for removing copper ions in water. The synthetic method comprises the following steps: synthesizing Fe3O4 nanoparticles by using an ionic liquid, slowly dropwise adding TEOS to form a core under a heating condition by using the Fe3O4 nanoparticles as seeds, synthesizing Fe3O4 (at) SiO2 by using CTAB as a template agent, and finally removing the template agent to obtain the mesoporous silica taking Fe3O4 as a magnetic core. Experiments prove the necessity of firstly synthesizing the Fe3O4-coated SiO2 core. and finally removing trace copper ions in the water body by using mesoporous Fe3O4-coated SiO2 with a core-shell structure. Results show that a large number of mesoporous structures exist on the surface and inside the magnetic mesoporous silica, and when the pH value is 6 and the temperature is 60 DEG C, the magnetic mesoporous silica has high ads