2024 : 10 : 8
javad gholami

javad gholami

Academic rank: Assistant Professor
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Education: PhD.
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Faculty: science
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Research

Title
سنتز سبز نانوذرات Pd روی نانوذرات مغناطیسی اطلاح شده با تانیک اسید به عنوان یک عامل کاهنده سبز و قابل بازیافت: کاربرد آن به عنوان نانوکاتالیست قابل بازیافت Fe3O4@TA-Pd)) جهت کاهش 4-نیترو فنول و واکنشهای سوزوکی
Type
JournalPaper
Keywords
Magnetite Nanoparticles · 4-Nitrophenol · Palladium · Suzuki · Tannic Acid
Year
2018
Journal ChemistrySelect
DOI
Researchers Mozhgan Pirhayati ، javad gholami

Abstract

Tannic acid, as a humic-like substance with phenolic hydroxyl and carbonyl functional groups, can modify surface of Fe3O4 NPs. Moreover, it can improve surface properties and capacity of Fe3O4 for adsorption and reduction of palladium ions through complexing with them, in aqueous solutions. Therefore, Fe3O4@TA NPs have potentials of reducing, stabilizing and immobilizing palladium nano particles to generate novel magnetic palladium nanocatalysts. Inductively coupled plasma (ICP), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectrum (EDS), vibrating sample magnetometer (VSM) and Fourier transform infrared (FTIR) methods unraveled the catalyst properties. Investigation of Fe3O4@TA/Pd NPs performance illustrated its recycle nature and high catalytic activity towards Suzuki-Miyaura cross-coupling reactions and reduction of 4-nitrophenol (4-NP), at room temperature