Influence of surfactants on structural, morphological, optical and antibacterial properties of SnO2 nanoparticles. Issue 9 (11th October 2019)

• Record Type: Journal Article
• Authors: Karuppiah, Sujatha; Thangaraj, Seethalakshmi; Arunachalam Palaniappan, Sudha; Olapalayam Lakshmanan, Shanmugasundaram
• Is Part Of: IET nanobiotechnology. Volume 13:Issue 9(2019)
• Page Start: 952
• Page End: 956
• Publication Date: 2019-10-11
• Subjects: visible spectra -- precipitation (physical chemistry) -- ultraviolet spectra -- nanofabrication -- tin compounds -- X‐ray diffraction -- crystallites -- titanium compounds -- particle size -- antibacterial activity -- surfactants -- nanoparticles -- energy gap -- scanning electron microscopy -- surface morphology -- semiconductor materials -- optical constants -- semiconductor growth; SnO2 -- co‐precipitation method -- anti‐bacterial activities -- X‐ray diffraction patterns -- tetragonal rutile structure -- spherical shape morphology -- band gap energy -- sodium dodecyl sulphate surfactant -- surface morphology -- surfactant‐aided SnO2 nanoparticles -- crystallite size -- scanning electron microscopy -- UV–visible absorption spectra -- Escherichia coli -- Staphylococcus aureus bacteria -- TRITON X‐100 surfactant -- n‐cetyl trimethyl ammonium bromide surfactant; Biotechnology -- Periodicals; Nanotechnology -- Periodicals; 660.6
• DOI: 10.1049/iet-nbt.2019.0095
• Languages: English
• ISSNs: 1751-8741

Abstract

Abstract : Tin oxide (SnO2 ) nanoparticles were synthesised using various surfactants of different charges (n‐cetyl trimethyl ammonium bromide, sodium dodecyl sulphate and TRITON X‐100) by the co‐precipitation method. The synthesised nanomaterials were characterised using different techniques to study their structural, surface morphological, optical and anti‐bacterial activities. X‐ray diffraction patterns revealed the formation of a tetragonal rutile structure in pure and surfactants‐aided SnO2 nanoparticles and the results show good agreement with JCPDS data [41‐1445]. The crystallite size of SnO2 nanoparticles was found to decrease with the addition of surfactants. Scanning electron microscopy images exhibit spherical shape morphology with an average diameter of 30–75 nm for pure and surfactants‐aided SnO2 nanoparticles. The band gap energy of the prepared materials was estimated from the UV–visible absorption spectra and a considerable increase in band gap energy was observed in surfactants‐aided SnO2 nanoparticles (3.487, 3.57, 3.50 and 3.3 eV). The antibacterial activities of the synthesised nanoparticles were studied against Escherichia coli and Staphylococcus aureus bacteria.