Spectroscopic Investigation on the Catalytic Efficacy of Biofabricated Gold Nanoparticles using Marine Macroalgae. (2019)

• Record Type: Journal Article
• Authors: Princy, K.F.; Gopinath, Anu
• Is Part Of: Materials today. Volume 9:Part 1(2019)
• Page Start: 38
• Page End: 45
• Publication Date: 2019
• Subjects: Biosynthesis -- gold nanoparticles -- Padina Tetrastromatica -- UV-Visible Spectroscopy -- nanocatalyst -- Nitrophenols; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.02.034
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The present article reports a green and cost effective route for the synthesis of gold nanoparticles (AuNPs) using aqueous extract of marine macroalgae Padina Tetrastromatica. The biosynthesized AuNPs were characterized using UV-Visible spectroscopy, XRD, TEM, SAED, EDAX and FTIR techniques. The prepared AuNPs were found to be more or less spherical with an average size of 11.43nm.They were crystalline in nature, and showed a surface plasmon resonance peak at 532 nm.The biosynthesized AuNPs were used as nanocatalyst in the reduction of anthropogenic organic pollutant, 4-nitrophenol to beneficial 4-aminophenol using NaBH4, which followed a pseudo-first-order kinetics