Functional mesoporous carbon nanospheres: Effects of adding magnetic source during different stage

Abstract To solve the challenge of preparing magnetic mesoporous carbon nanospheres (MMCNs) with uniform and disperse particles, a series of MMCNs are achieved by a self-assembly procedure in one-pot aqueous solution. Impacts of magnetic source on the morphology and textural property of the as-synthesized MMCNs are systematically investigated by altering their adding time. An extended “two-stage dispersion polymerization” mechanism is employed to explain the formation of MMCNs. Interestingly, adding Fe3+ during the particle growing stage can obtain MMCNs-2, exhibiting uniform particle size, large specific surface area, high adsorption capacity and magnetic properties for improving the release of water-insoluble drugs such as Lovastatin (LOV).