Arularasu M V, Anbarasu M, Poovaragan S, Sundaram R, Kanimozhi K, Magdalane C Maria, Kaviyarasu K, Thema F T, Letsholathebe D, Mola Genene T, Maaza M
PG and Research Department of Chemistry, Presidency College (Autonomous), Chennai 600005, Tamil Nadu, India.
PG Research and Department of Chemistry, Auxilium College (Autonomous), Vellore 632006, India.
J Nanosci Nanotechnol. 2018 May 1;18(5):3511-3517. doi: 10.1166/jnn.2018.14658.
Nanoparticles of tin oxide (SnO2) powders were prepared by co-precipitation method at 500 °C, 700 °C and 900 °C temperature. The sintered SnO2 nanoparticles, structural, optical, magnetic, morphological properties and microbial activity have been studied. XRD studies reveals that sintered powder which exhibits tetragonal crystal structure and both crystallinity as well as crystal size increase with increase in temperature. The morphological studies reveal randomly arranged grains with compact nature grain size increases with sintering temperature. The compositional analyses of SnO2 nanoparticles have been studied using X-ray photoelectron spectroscopy analysis. The optical band gap values of SnO2 nanoparticles were calculated to be about 4.3 eV in the temperature 500 °C, comparing with that of the bulk SnO2 3.78 eV, by optical absorption measurement. Room temperature M-H curve for pure SnO2 nanoparticles exhibits ferromagnetic behaviour. The tin oxide nanoparticles are acted as potential candidate material for bacterial and fungal activity.
采用共沉淀法在500℃、700℃和900℃温度下制备了氧化锡（SnO₂）粉末纳米颗粒。对烧结后的SnO₂纳米颗粒的结构、光学、磁性、形态学性质及微生物活性进行了研究。X射线衍射（XRD）研究表明，烧结粉末呈现四方晶体结构，且结晶度和晶体尺寸均随温度升高而增加。形态学研究表明，晶粒随机排列，具有致密性质，晶粒尺寸随烧结温度增加。利用X射线光电子能谱分析对SnO₂纳米颗粒进行了成分分析。通过光吸收测量，计算得出500℃温度下SnO₂纳米颗粒的光学带隙值约为4.3eV，而块状SnO₂的光学带隙值为3.78eV。纯SnO₂纳米颗粒的室温磁滞回线呈现铁磁行为。氧化锡纳米颗粒可作为细菌和真菌活性的潜在候选材料。
