Bismuth based novel substrate for surface enhanced Raman spectroscopy

Arti Saroj; Uttam Sharma; Santanu Das; Venkatnarayan Ramanathan

doi:10.1016/j.saa.2022.121576

Bismuth based novel substrate for surface enhanced Raman spectroscopy

Spectrochim Acta A Mol Biomol Spectrosc. 2022 Nov 5:280:121576. doi: 10.1016/j.saa.2022.121576. Epub 2022 Jun 30.

Authors

Arti Saroj¹, Uttam Sharma², Santanu Das², Venkatnarayan Ramanathan³

Affiliations

¹ Department of Chemistry, IIT(BHU) Varanasi, India.
² Department of Ceramic Engineering, IIT(BHU) Varanasi, India.
³ Department of Chemistry, IIT(BHU) Varanasi, India. Electronic address: vraman.chy@iitbhu.ac.in.

PMID: 35785710
DOI: 10.1016/j.saa.2022.121576

Abstract

Exploring the potential of non-noble metal substrates for Surface-enhanced Raman spectroscopy (SERS) has attracted considerable interest in recent years. In this work, we prepared nanoplate β-Bi₂O₃/Bi₂O₂CO₃ heterostructure via calcination of Bi₂O₂CO₃ precursor using a facile hydrothermal process and successfully demonstrated its use as a novel SERS substrate. The SERS sensitivity of substrate was performed by probing methyl orange (MO), rhodamine B (RhB), vitamin C (Vit. C), and melamine. The observed results show that the SERS signal is enhanced considerably by the adsorption of probe molecules on the surface of the Bismuth heterostructure SERS substrate.

Keywords: Bismuth nanomaterials; Novel SERS substrate; Raman Spectroscopy; Surface enhancement.

MeSH terms

Adsorption
Bismuth
Metal Nanoparticles* / chemistry
Silver / chemistry
Spectrum Analysis, Raman* / methods

Substances

Silver
Bismuth