Iron oxide nanoparticles coated with green tea extract as a novel magnetite reductant and stabilizer sorbent for silver ions: Synthetic application of Fe3O4@green tea/Ag nanoparticles as magnetically separable and reusable nanocatalyst for reduction of 4‐nitrophenol

• DOI: 10.1002/aoc.3711
• Publication Date: 2017-01-30T05:03:48Z
• Authors: Hojat Veisi; Fatemeh Ghorbani
• Keywords: Silver nanoparticle; Reducing agent; Green tea extract

Green tea extract having many phenolic hydroxyl and carbonyl functional groups in its molecular framework can be used the modification of Fe 3 O 4 nanoparticles. Moreover, feasibility complexation polyphenols with silver ions aqueous solution improve surface properties capacity @green nanoparticles (Fe @GTE NPs) for sorption reduction ions. Therefore, novel NPs nano‐sorbent has potential ability as both reducing stabilizing agent immobilization to make a magnetic nanocatalyst @GTE/Ag NPs). Inductively coupled plasma analysis, transmission scanning electron microscopies, energy‐dispersive X‐ray Fourier transform infrared spectroscopies, vibrating sample magnetometry were characterize catalyst. shows high catalytic activity recyclable 4‐nitrophenol at room temperature.