30 فروردین 1403
جواد غلامي

جواد غلامی

مرتبه علمی: استادیار
نشانی:
تحصیلات: دکترای تخصصی / نانوفناوری
تلفن:
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان
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
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Pd NP, Suzuki coupling, Reduction
سال
2021
مجله INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
پژوهشگران جواد غلامی

چکیده

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.