Single-phase [alpha]-Cr2O3 nanoparticles' green synthesis using Callistemon viminalis' red flower extract

• Published in: Green chemistry letters and reviews Vol. 9; no. 2; p. 85
• Main Authors: Sone, B. T, Manikandan, E, Gurib-Fakim, A, Maaza, M
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis Ltd 01.06.2016
• Subjects: Alloys; X-rays
• ISSN: 1751-8253; 1751-7192
• DOI: 10.1080/17518253.2016.1151083

This contribution reports for the first time on the synthesis and the main physical properties of single-phase pure α-Cr2O3 nanoparticles synthesized by a facile, rapid and eco-friendly process using Callistemon viminalis flower's extract as an effective oxidizing/reducing agent. These crystalline nanoparticles exhibit a cubic-like platelet shape with sharp edges with an average particle diagonal size of ∼92.2 nm. The room temperature physical properties of these pure highly crystalline Eskolaite α-Cr2O3 nanoparticles were carried out using complementary techniques such as high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS), XRD, FTIR-ATR, Raman and XPS.