Abstract：
In this investigation, ferric (Fe) and nickel (Ni) co-doped tin oxide (SnO2) nanoparticles structural, optical, morphological, and antibacterial characteristics were synthesised, characterised, and examined. By employing SnCl2·2H2O and the transition metal precursors FeCl3 and NiCl2·6H2O with various Fe/Ni molar ratios, thermal annealing was carried out at a high temperature (700 °C). X-ray diffraction (XRD), UV-Visible spectroscopy, Photoluminescence (PL), FT-IR, and scanning electron microscopy (SEM) with energy dispersive X-ray techniques (EDX) were used to examine the materials\' structural, chemical, optical, morphological, and anti-microbial capabilities. The average particle size of pure and co-doped SnO2 nanoparticles was determined to be around 52 nm and 15 nm, and SnO2 crystallites were observed to present tetragonal rutile structure with space group P42/mmm (No.136). Metal ions were replaced in the Sn lattice, as shown by Fe and Ni co-doped SnO2 nanoparticles. Pure and co-doped samples have capsule and sphere-like features in their SEM morphology. Using UV-visible diffuse reflectance spectroscopy, the optical property was examined, and it was observed that the band gaps for pure and co-doped SnO2 were 3.73 eV and 3.53 eV, respectively. The functional groups and incorporation of Fe and Ni in the prepared powder were also validated by FT-IR and EDX studies. By utilising the agar well diffusion technique and Nutrient agar, the antibacterial properties of pure, Ni-Fe co-doped SnO2 nanoparticles annealed at 700 °C were assessed. They were evaluated against various Gram-positive bacteria (Staphylococcus pheumoniae) and Gram-negative bacteria (Shigella dysenteria). The zone of incubation was found against the Gram +Ve and Gram -Ve bacterial strains.
摘要：
在这次调查中,铁（Fe）和镍（Ni）共掺杂的氧化锡（SnO2）纳米结构，光学，形态学,并合成了抗菌特性，特点，和检查。通过使用各种Fe/Ni摩尔比的SnCl2·2H2O和过渡金属前体FeCl3和NiCl2·6H2O，在高温(700°C)下进行热退火。X射线衍射(XRD)紫外可见光谱，光致发光(PL),FT-IR,和扫描电子显微镜（SEM）与能量色散X射线技术（EDX）用于检查材料的结构，化学,光学，形态学,和抗微生物能力。纯的和共掺杂的SnO2纳米颗粒的平均粒径被确定为约52nm和15nm，观察到SnO2微晶呈四方金红石结构，空间群P42/mmm(No.136)。金属离子在Sn晶格中被取代，如Fe和Ni共掺杂的SnO2纳米颗粒所示。纯样品和共掺杂样品在其SEM形态中具有胶囊和球形特征。利用紫外可见漫反射光谱,检查了光学性能，观察到纯SnO2和共掺杂SnO2的带隙分别为3.73eV和3.53eV，分别。还通过FT-IR和EDX研究验证了所制备粉末中Fe和Ni的官能团和掺入。通过利用琼脂孔扩散技术和营养琼脂，纯净的抗菌性能，评估在700°C下退火的Ni-Fe共掺杂的SnO2纳米颗粒。针对各种革兰氏阳性细菌（肺炎葡萄球菌）和革兰氏阴性细菌（志贺氏菌痢疾）进行了评估。针对革兰氏Ve和革兰氏-Ve细菌菌株发现了孵育区。
