Sikhwivhilu Lucky M, Pillai Sreejarani K, Hillie Thembela K
DST/CSIR Nanotechnology Innovation Centre, National Centre for Nano-Structured Materials, CSIR, PO Box 395, Pretoria 0001, South Africa.
J Nanosci Nanotechnol. 2011 Jun;11(6):4988-94. doi: 10.1166/jnn.2011.3930.
Tin oxide (SnO2) nanoparticles with size range of 19 to 100 nm were successfully synthesized using wet chemical process (i.e., chemical precipitation and sol-gel processes). The samples were analysed by X-Ray diffraction, Scanning electron microscopy, Energy dispersive X-ray spectroscopy, Raman and FTIR spectroscopy, BET surface area and Thermogravimetric analyses. The results showed that variation of citric acid concentration directly influences the particle size and the BET specific surface area. The XRD analysis revealed that nanoparticles were phase pure and that all materials exhibited a tetragonal rutile structure of SnO2. Characterisation of the materials was carried out using techniques such as scanning electron microscopy, X-ray diffraction, Fourier Transform Infrared spectroscopy, Thermogravimetric and BET analyses.
采用湿化学法（即化学沉淀法和溶胶-凝胶法）成功合成了尺寸范围为19至100纳米的氧化锡（SnO₂）纳米颗粒。通过X射线衍射、扫描电子显微镜、能量色散X射线光谱、拉曼光谱和傅里叶变换红外光谱、BET比表面积和热重分析对样品进行了分析。结果表明，柠檬酸浓度的变化直接影响颗粒尺寸和BET比表面积。XRD分析表明纳米颗粒为纯相，所有材料均呈现SnO₂的四方金红石结构。使用扫描电子显微镜、X射线衍射、傅里叶变换红外光谱、热重分析和BET分析等技术对材料进行了表征。
