RESUMO
In this study, the synthesis of ultra-fine grade antimony trioxide (Sb2O3) using plant extract for the first time is reported. Antimony chloride was used as a starting material and Dioscorea alata tuber extract was used as a reducing and capping agent. The synthesised nanoparticles were characterised by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), dynamic light scattering (DLS), and Fourier transform infrared spectroscopy. XRD analysis indicates the formation of pure Sb2O3 nanoparticles. The result from FE-SEM and DLS showed that the particles have a cube-like morphology and have an average size of 346.4â nm which falls within the range of ultra-fine grade Sb2O3.
Assuntos
Antimônio/química , Dioscorea/química , Química Verde/métodos , Nanopartículas Metálicas/química , Extratos Vegetais/química , Teste de Materiais , Testes de Sensibilidade Microbiana , Microscopia Eletrônica de Varredura , Microscopia Eletrônica de Transmissão , Tamanho da Partícula , Espectroscopia de Infravermelho com Transformada de Fourier , Difração de Raios XRESUMO
Here, the authors report a rapid, simple, and eco-friendly process for synthesis of Bi2O3 nano-needles. Dioscorea alata tuber extract was used as both reducing and capping agent for the first time. These nanoparticles were characterised by X-ray diffraction, field emission scanning electron microscope, and Fourier transform infrared (FTIR) spectrometry, the nano-structured Bi2O3 needles have an average diameter of 158â nm with the lengths in the range of 1-3â µm. CLSI M27-A2 standard was followed for evaluation of anti-fungal activity. Bi2O3 nano-needles show remarkable activity against Candida albicans. It exhibits four time greater activity than bulk Bi2O3 powder and two time greater activity than itraconazole, which makes it a potent anti-fungal drug.
