Green synthesis of plasmonic nanoparticles using Sargassum ilicifolium and application in photocatalytic degradation of cationic dyes

Thangavel Akkini Devi; Rajendran Muthukumar Sivaraman; Seth Sheeba Thavamani; Thomas Peter Amaladhas; Mohamad S AlSalhi; Sandhanasamy Devanesan; Maruthamuthu Murali Kannan

doi:10.1016/j.envres.2021.112642

Green synthesis of plasmonic nanoparticles using Sargassum ilicifolium and application in photocatalytic degradation of cationic dyes

Environ Res. 2022 May 15:208:112642. doi: 10.1016/j.envres.2021.112642. Epub 2022 Jan 5.

Authors

Thangavel Akkini Devi¹, Rajendran Muthukumar Sivaraman², Seth Sheeba Thavamani³, Thomas Peter Amaladhas⁴, Mohamad S AlSalhi⁵, Sandhanasamy Devanesan⁵, Maruthamuthu Murali Kannan⁶

Affiliations

¹ Department of Chemistry, A.P.C. Mahalaxmi College for Women, Tuticorin, 628002, Tamil Nadu, India.
² Department of Chemistry, Kamaraj College, Tuticorin, 628003, Tamil Nadu, India.
³ Post Graduate and Research Department of Chemistry, V.O. Chidambaram College, Tuticorin, 628008, Tamil Nadu, India.
⁴ Post Graduate and Research Department of Chemistry, V.O. Chidambaram College, Tuticorin, 628008, Tamil Nadu, India. Electronic address: peter.che@voccollege.ac.in.
⁵ Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box: 2455, Riyadh, 11451, Saudi Arabia.
⁶ Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA.

PMID: 34998807
DOI: 10.1016/j.envres.2021.112642

Abstract

In the present work, a green synthetic method for the preparation of extremely stable silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) using Sargassum ilicifolium has been demonstrated. Thus produced nanoparticles were characterized by UV-Visible (UV-Vis) spectroscopy, Fourier Transform InfraRed spectroscopy (FT-IR), Energy Dispersive X-ray spectroscopy (EDX), X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Dynamic Light Scattering (DLS) and Zeta potential analyses. The average size of Ag and Au NPs was 27.9 and 9.36 nm respectively from TEM, which was further substantiated by XRD data. Zeta potential values of -42.2 mV and -28.3 mV for Ag and Au NPs respectively suggested that the nanoparticles were negatively charged and highly stable. AgNPs showed desirable bactericidal activity towards Enterobacter species, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus and Proteus species. The photocatalytic behaviour of AgNPs was studied to degrade malachite green (MG) and methylene blue (MB) in aqueous medium. In MG, 82.9% degradation was achieved in 180 min of light exposure and the pseudo first order rate constant was 7.2 × 10^-3 min^-1. In MB, almost 100% of the dye was degraded in the same period and the pseudo first order rate constant calculated was 7.5 × 10^-3 min^-1. The bio-derived AgNPs are hence promising materials for treating effluent from dyeing industries and water purification.

Keywords: Antibacterial; Cationic dyes; Gold nanoparticles; Photodegradation; Sargassum ilicifolium; Silver nanoparticles.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Anti-Bacterial Agents / chemistry
Anti-Bacterial Agents / pharmacology
Coloring Agents
Gold / chemistry
Metal Nanoparticles* / chemistry
Sargassum*
Silver / chemistry
Spectroscopy, Fourier Transform Infrared
X-Ray Diffraction

Substances

Anti-Bacterial Agents
Coloring Agents
Silver
Gold