Tetrazole derivatives synthesis using…
Conclusion
An economical, green, and simple method is applied to coat MNPs using fbroin.
Consequent treatment with chlorosulfuric acid could prepare a novel solid acid
nanocatalyst. As illustrated by FE-SEM and TEM analyses, the average diameters of
Fe3O4@fbroin particles were in the range of 16–22 nm with uniform morphology.
The presence of fbroin biopolymer and sulfonyl groups in the nanocatalyst structure
has been proved using SEM, EDS, FT-IR, TEM, and TGA characterization tech-
niques. Moreover, the Fe3O4@fbroin-SO3H performance was examined in the syn-
thesis of tetrazole derivatives. In fact, excellent catalytic performance was obtained
under mild reaction conditions within a short time. This paper ofered a simple,
green, and new approach for the synthesis of novel core-type–shell-type magnetic
nanoparticles and their catalytic applications.
Acknowledgements The authors acknowledge the fnancial support from the Semnan University
Research Council and Seyed Amin Shobeiri for comments that greatly improved the manuscript.
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