RAFT (Reversible addition-fragmentation chain transfer) polymerization preparation method of magnetic mesoporous molecular imprinted hybrid silicon spheres
A technology of mesoporous silicon spheres and molecular imprinting, applied in chemical instruments and methods, other chemical processes, magnetic field/electric field water/sewage treatment, etc., can solve the problems of laborious, low removal efficiency, time-consuming, etc., and achieve easy implementation and improved use efficiency , the effect of easy separation
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[0025] A RAFT polymerization preparation method of magnetic mesoporous molecularly imprinted hybrid silicon spheres, first using a solvothermal method to prepare Fe 3 o 4 The magnetic microspheres were then deposited on Fe by sol-gel method 3 o 4 The surface of the magnetic microsphere is coated with mesoporous silicon dioxide to obtain a magnetic mesoporous silicon sphere. Finally, the magnetic mesoporous molecularly imprinted hybrid silicon spheres were synthesized on the surface of the magnetic mesoporous silicon spheres using RAFT molecular imprinting technology, including the following steps:
[0026] 1) Fe 3 o 4 Synthetic preparation of microspheres
[0027] Synthesis of Fe by Solvothermal Method 3 o 4 Microspheres: 1mmol of FeCl 3 ·6H 2 O was dissolved in 40ml of ethylene glycol to obtain a yellow transparent solution. Add 3mmol of anhydrous sodium acetate to the above solution, and after magnetically stirring for 30min, transfer the solution into a 50ml stain...
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