Enhancement of catalytic activity by homo-dispersing S2O82--Fe2O3 nanoparticles on SBA-15 through ultrasonic adsorption

Mesoporous superacids S2O82--Fe2O3/SBA-15 with active nanoparticles are prepared by ultrasonic adsorption. TEM images show S2O82--Fe2O3 nanoparticles of approximately 6 × 8 nm are uniformly distributed in the inner mesoporous channels of SBA-15.