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Sulfonic acid functionalized SBA-15 nanoporous material (SBA-Pr-SO3H) with a pore size of 6nm was found to be a green and effective solid acid catalyst in the one-pot synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles under solvent-free conditions. SBA-Pr-SO3H was proved to be a recyclable, green, and highly efficient catalyst which could be easily handled, recovered, and reused...
SrFe12O19 magnetic nanoparticles (MNPs) were synthesized through a very simple sol–gel auto-combustion technique. Then, it was characterized by different techniques. Likewise, the semi-spherical SrFe12O19 MNPs was observed in SEM image with the average particles’ size of 70 nm. Also, BET surface of particles was calculated as 10.4 ± 0.5 m2/g. Through VSM, magnetic saturation of SrFe12O19 MNPs was...