Synthesis of Highly Selective Magnetic Mesoporous Adsorbent

Magnetic MCM-41 of large surface area (ca. 800 m(2) g(-1)) and high magnetization (ca. 8.3 emu g(-1)) was prepared at a reasonable iron oxide nanoparticles loading of 10 wt \% by a two-step synthesis process. The 8 nm iron oxide nanoparticles (i.e., 30 m(2) g(-1)) were embedded in the MCM-41 with no observable effects on the particle morphology and pore symmetry, but a slight change (i.e.,