Photocatalytic antibacterial properties of copper doped TiO2 prepared by high-energy ball milling. Issue 10 (July 2020)

• Record Type: Journal Article
• Authors: Wang, Mei; Zhao, Qianfei; Yang, He; Shi, Dai; Qian, Juncen
• Is Part Of: Ceramics international. Volume 46:Issue 10(2020)Part B
• Page Start: 16716
• Page End: 16724
• Publication Date: 2020-07
• Subjects: High-energy ball milling -- TiO2 -- Copper doped -- Photocatalytic -- Antibacterial; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.03.246
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: TiO2 nanopowders and Cu-doped TiO2 were prepared by high-energy ball milling and characterized by X-ray diffraction (XRD), UV–vis diffuse reflectance (UV–vis - DRS) spectra, a scanning electron microscope (SEM), an energy dispersive spectrum (EDS) and an X-ray photoelectron spectrometer (XPS) to study the effect of Cu doping amount, milling time and balls-to-powder ratio on the microstructure and antimicrobial activity of the nanopowders. The results show that the mean size of the powders is reduced to below 100 nm after 3 h of milling. The prepared copper-doped TiO2 powders have excellent antibacterial activity against the Gram bacteria, which depends on the degree of copper doping.