ABSTRACT

Pristine and iron (Fe) doped tin oxide (SnO₂) nanoparticles (NPs) were prepared by using a microwave aided co-precipitation method and the effect of doping on structural, optical and photocatalytic belongings have been investigated by XRD, FTIR, HR-SEM with EDX mapping, UV-Vis. DRS and Photoluminescence (PL) spectra respectively. XRD analysis has revealed a tetragonal SnO₂ structure and the typical crystalline size was found to be between 28 nm and 17 nm. Photoluminescence spectra displayed a robust UV emission broadband peaking around 392.5 nm. The 4 % of Fe doped SnO₂ NPs had higher photocatalytic action associated with the pristine and 2 % of Fe-SnO₂, and maximum MO dye degradation efficiency of 87.2 % has been attained 200 min under visible light Moreover, the studies prove that antibacterial activities of produced Fe doped SnO₂ NPs have a momentous performance against various gram-positive (G⁺) and gram-negative (G^-) bacteria.

摘要

使用微波辅助共沉淀法制备了原始和铁 (Fe) 掺杂的氧化锡 (SnO ₂ ) 纳米粒子 (NPs)，并通过 XRD、FTIR、HR-研究了掺杂对结构、光学和光催化物质的影响。带有 EDX 映射、UV-Vis 的 SEM。分别为 DRS 和光致发光 (PL) 光谱。XRD 分析揭示了四方SnO ₂ 结构并且发现典型的晶体尺寸在28nm和17nm之间。光致发光光谱在 392.5 nm 附近显示出稳定的紫外发射宽带峰。4% 的 Fe 掺杂 SnO ₂  NPs 具有更高的光催化作用与原始和 2% 的 Fe-SnO _{2 相关}，并且在可见光下 200 分钟达到了 87.2 % 的最大 MO 染料降解效率 此外，研究证明所制备的 Fe 掺杂的 SnO ₂  NPs 的抗菌活性对各种革兰氏阳性 (G ⁺ ) 和革兰氏阴性(G ^- ) 细菌。