ZnO nanoparticles in complete photo-mineralization of aqueous gram negative bacteria and their organic content with direct solar light

TiO2 nanopowder and nanofilm catalysts in the disinfection and mineralization of S. aureus with solar-simulated radiation

“…This is because the TOC values, measured for the gross reaction mixture after 3 h, include living bacteria, broth organics and cell walls from the mineralized bacteria. As reported earlier, 16,47 the S. aureus bacteria have thick walls which resist photodegradation. The TOC value is thus expected to increase.…”

“…The choice for ZnO particles is due to their reported efficiency in rapturing bacterial cell walls. 15,16 With a band gap value of ∼3.2 eV, the particles can be excited by photons with a wavelength of 387 nm or shorter. Therefore, the ZnO particles were sensitized by other dyes to function in the visible range.…”

Enhanced UV emission of Li–Y co-doped ZnO thin films via spray pyrolysis

“…Metal oxide nanostructures have gained an increasing attention in the recent years, owing to their unique properties and wide possibilities to exploit them in various applications for the development of novel devices. In particular, nanostructures of zinc oxide, a II-VI semiconductor characterized by a direct wide bandgap (3.37 eV) and large exciton binding energy of 60 meV, are considered to be attractive and promising materials for different applications in opto-and microelectronic devices [1][2] [3], such as solar cells [4][5] [6], UV-visible light emitting diodes (LEDs) [7],gas sensors [3][4] and photocatalysts [10] [11].…”