Loading...

Highly efficient of molybdenum trioxide-cadmium titanate nanocomposites for ultraviolet light photocatalytic and antimicrobial application: Influence of reactive oxygen species

Zhu, J. M ; Sharif University of Technology | 2019

1126 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.jphotobiol.2018.12.019
  3. Publisher: Elsevier B.V , 2019
  4. Abstract:
  5. In the present work we report the enhanced UV light photocatalytic performance of cadmium titanate photocatalyst by MoO 3 for Drug pollutant degradation. The nano photocatalyst sample was synthesized employing the Pechini-ultrasonic-hydrothermal route. Therefore, the nano photocatalyst were characterized by various analytical devices. The wide scan X-ray photoelectron spectral study confirmed the MoO 3 in the CdTiO 3 matrix. The crystallite size calculated with the Debye-Scherrer equation (55.4, 57.0, 61.2 and 63.1 nm for pure CdTiO 3 , MoCdTi-0, MoCdTi-1, and MoCdTi-2 nanocomposites, respectively). SEM micrographs revealed nanowire morphology indicated the crystalline nature of the sample. The MoO 3 -CdTiO 3 photocatalyst degraded the aspirin pollutant in 90 min under UV light which was higher and efficient than the pristine cadmium titanate. The enhanced photocatalytic efficiency can be attributed to the significant decrease in the band gap energy relative to the pristine cadmium titanate coupled with larger surface area morphology. The actual band gap values calculated were 2.95 to 2.66 eV ranges. The antifungal efficiency of the CdTiO 3 , and MoO 3 -CdTiO 3 was examined against Aspergillus flavus, and Trigoderma veride and their antibacterial efficiency was examined against Escherichia coli, and streptococcus pyogenes. The MoO 3 -CdTiO 3 with high ratio of MoO 3 has suitable to good activity compared with pure CdTiO 3 and other MoO 3 -CdTiO 3 samples. © 2018
  6. Keywords:
  7. Antimicrobial ; Aspirin ; Cadmium titanate ; MoO 3 ; Photocatalysis ; Acetylsalicylic acid ; Cadmium titanate nanocomposite ; Ketoconazole ; Molybdenum trioxide cadmium titanate nanocomposite ; Nanowire ; Oxidizing agent ; Reactive oxygen metabolite ; Unclassified drug ; Antifungal agent ; Antiinfective agent ; Cadmium derivative ; Molybdenum trioxide ; Nanocomposite ; Oxide ; Antibacterial activity ; Antifungal activity ; Aspergillus flavus ; Calculation ; Catalyst ; Catalytic efficiency ; Controlled study ; Diffuse reflectance spectroscopy ; Drug determination ; Escherichia coli ; Nonhuman ; Photoluminescence ; Priority journal ; Scanning electron microscopy ; Streptococcus pyogenes ; Surface area ; Trichoderma viride ; Ultraviolet radiation ; Ultraviolet visible spectroscopy ; X ray diffraction ; X ray photoemission spectroscopy ; Catalysis ; Chemistry ; Photochemistry ; Anti-Bacterial Agents ; Anti-Infective Agents ; Antifungal Agents ; Cadmium Compounds ; Molybdenum ; Nanocomposites ; Oxides ; Photochemical Processes ; Reactive Oxygen Species ; Titanium ; Ultraviolet Rays
  8. Source: Journal of Photochemistry and Photobiology B: Biology ; Volume 191 , 2019 , Pages 75-82 ; 10111344 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S1011134418313083