Research Paper

Journal of Nanoparticle Research

, Volume 11, Issue 7, pp 1759-1766

Understanding the role of hexadecyltrimethylammonium bromide in the preparation of selenium nanoparticles: a spectroscopic approach

  • S. K. MehtaAffiliated withDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University Email author 
  • , Savita ChaudharyAffiliated withDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University
  • , K. K. BhasinAffiliated withDepartment of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

In this work, we report the size tunable synthesis of selenium (Se) nanoparticles with an average particle size ~16 nm by using hydrazine hydrate as the reducing agent. The solution of selenium dioxide was taken as the precursor and hexadecyltrimethylammonium bromide (CTAB) a cationic surfactant, which helps in providing sufficient stabilization to the Se nanoparticles. The synthesized Se nanoparticles were characterized by the UV–vis, X-ray diffraction (XRD), and transmission electron microscopic techniques, which demonstrated high stability of Se nanoparticles in aqueous media. The particle sizes estimated from the band gap values using effective mass approximation (EMA) agreed fairly well with those calculated from the XRD measurements. The concentration effects of Se and CTAB on the particle size have also been examined. The capping ability of the CTAB has been quantitatively evaluated from FTIR studies.

Keywords

Size tunable Hexadecyltrimethylammonium bromide Stabilization Band gap Effective mass approximation Capping ability Colloids