Photocatalytic and Antibacterial Potency of Titanium Dioxide Nanoparticles: A Cost-Effective and Environmentally Friendly Media for Treatment of Air and Wastewater

Catalysts

Mayeen Uddin Khandaker¹  Ajmal Khan²  Sohail Shakeel³  Muhammad Farooq³  Zohaib Razzaq³  Awais Khalid³  Ibad Ur Rehman³  Pervaiz Ahmad⁴  Abdelmoneim Sulieman⁵ 

[1] Center for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Bandar Sunway 47500, Selangor, Malaysia;Department of Botany, Hazara University Mansehra, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan;Department of Physics, Hazara University Mansehra, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan;Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Azad Jammu and Kashmir, Pakistan;Department of Radiology and Medical Imaging, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia;

关键词: nanoparticles;    titanium dioxide;    photocatalyst;    antibacterial;    water treatment;   

DOI  :  10.3390/catal11060709

来源: DOAJ

【 摘 要 】

Titanium dioxide nanoparticles (TiO₂-NPs) were synthesized via a facile hydrothermal method. X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FTIR), and Raman spectroscopy were used to study the structure, morphology, chemical composition, and functional group attached to the as-synthesized TiO₂-NPs. These NPs were then used to test their efficacy against various microbes and their potency as effective catalysts. TiO₂-NPs are found to have the maximum antibacterial activity against Gram-negative bacterial strains rather than Gram-positive bacteria. The photocatalytic activity of the TiO₂-NPs was investigated for the photodegradation of 10 ppm bromophenol blue (BPB) dye by using 0.01 g–0.05 g of catalyst. TiO₂-NPs exhibited the removal of 95% BPB, respectively, within 180 min. The TiO₂-NPs’ antibacterial and catalytic properties suggest that these may be used in environmental remediation as a cost-effective and environmentally friendly wastewater and air treatment material.

【 授权许可】

Unknown