Scholarlink

<p>TiO<sub>2</sub> and Zr/P substituted TiO<sub>2</sub> nanocatalysts were prepared by the sol–gel technique. The phase confirmation, elementary concentrations, particle size, morphology and oxidation states of each element are observed using XRD (X-Ray diffraction), E-DAX (Energy dispersive X-ray spectrum), TEM (Transmission Electron Microscopy) and XPS (X-ray photoelectron spectroscopy). The X-ray diffraction peaks of TiO<sub>2</sub> and Zr/p substituted TiO<sub>2</sub> nano catalysts confirm the tetragonal anatase phase. E-DAX spectra of all nano catalysts exhibit an elemental ratio in each catalyst that is well matched with the initial percentages of weight ratio. The ZrPT6 (0.25 Wt % of Zr and 1 Wt % of P doped in TiO<sub>2</sub>) nanocatalyst has a grain size of 15.956&#xa0;nm, making it the smallest of all the other nanocatalysts. TEM images’ predicted particle size and the XRD results agreed quite well. The average particle size of ZrPT6 and TiO<sub>2</sub> nanocatalysts is 6.59&#xa0;nm and 15.73&#xa0;nm. The corresponding planes and inter-planer distance show that Zr/P is appropriately doped in TiO<sub>2</sub>, and these results are consistent with XRD. XPS reveals the oxidation states, quantitative surface and chemical composition of TiO<sub>2</sub> and Zr/P substituted TiO<sub>2</sub> nanocatalysts. The antifungal activity of the TiO<sub>2</sub> and ZrPT6 nanocatalysts was tested against the organism Aspergillus niger. The pathogen Aspergillus niger-MTCC 282 with ZrPT6 nanocatalyst had a strong inhibition zone at 600&#xa0;µg/mL which is 28.37&#xa0;mm.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigation on the Antifungal Activity of Zr/P-TiO2 Nanoparticles Against the Aspergillus niger-MTCC 282 Pathogen

  • 期刊论文

  • 发表日期：

    2025年4月1日

查看全文
  • Lakshmi Rekha Buddiga,
  • Ganapathi Rao Gajula,
  • Gnana Praveena Nethala

摘要

TiO2 and Zr/P substituted TiO2 nanocatalysts were prepared by the sol–gel technique. The phase confirmation, elementary concentrations, particle size, morphology and oxidation states of each element are observed using XRD (X-Ray diffraction), E-DAX (Energy dispersive X-ray spectrum), TEM (Transmission Electron Microscopy) and XPS (X-ray photoelectron spectroscopy). The X-ray diffraction peaks of TiO2 and Zr/p substituted TiO2 nano catalysts confirm the tetragonal anatase phase. E-DAX spectra of all nano catalysts exhibit an elemental ratio in each catalyst that is well matched with the initial percentages of weight ratio. The ZrPT6 (0.25 Wt % of Zr and 1 Wt % of P doped in TiO2) nanocatalyst has a grain size of 15.956 nm, making it the smallest of all the other nanocatalysts. TEM images’ predicted particle size and the XRD results agreed quite well. The average particle size of ZrPT6 and TiO2 nanocatalysts is 6.59 nm and 15.73 nm. The corresponding planes and inter-planer distance show that Zr/P is appropriately doped in TiO2, and these results are consistent with XRD. XPS reveals the oxidation states, quantitative surface and chemical composition of TiO2 and Zr/P substituted TiO2 nanocatalysts. The antifungal activity of the TiO2 and ZrPT6 nanocatalysts was tested against the organism Aspergillus niger. The pathogen Aspergillus niger-MTCC 282 with ZrPT6 nanocatalyst had a strong inhibition zone at 600 µg/mL which is 28.37 mm.