May 25, 2024
javad gholami

javad gholami

Academic rank: Assistant Professor
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Education: Ph.D in علوم پایه
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Faculty: science

Research

Title Ultrasound assisted synthesis of Pd NPs decorated chitosan-starch functionalized Fe 3 O 4 nanocomposite catalyst towards Suzuki-Miyaura coupling and reduction of 4-nitrophenol
Type Article
Keywords
Pd NP, Suzuki coupling, Reduction
Journal INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Researchers javad gholami

Abstract

In recent days the nanomagnetic biocomposites have been evolved as sustainable green catalysts. In that context, we are prompted to design and synthesize a novel Pd NP adorned chitosan-starch dual biopolymer encapsulated core-shell type magnetic nanocomposite (Fe 3 O 4 @CS-Starch/Pd) in an eco-friendly pathway applying ultrasound irradiations. The morphological and physicochemical features of the material were determined using several advanced techniques like FT-IR, FESEM, HRTEM, EDX, atomic mapping, VSM, XRD and ICP-OES. Catalytic efficiency of the material was investigated in the ultrasound assisted classical Suzuki-Miyaura coupling towards the synthesis of diverse range of biaryl derivatives and in the catalytic reduction of 4-Nitrophenol.In both the protocols the catalyst exhibited excellent performances. Sonication had a significant role in enhancing the catalytic performances in both the reactions as compared to conventional heating. Due to super-paramagnetism, the catalyst was easily magnetically isolable and reused in 11 cycles without considerable leaching and change in reactivity.