One step facile in-situ photochemical synthesis of hollow, doughnut-like ZnO nanoparticles and their alcohol vapor sensing properties

Parameters such as the type of photoinitiator and UV exposure time are investigated in order to tailor the growth of ZnO nanostructures into a variety of dimensions and structures. Based on the type of photoinitiator, by means of specific photoreducing radicals, hollow, doughnut and spherical-shaped ZnO nanoparticles are prepared in one step. 2-Mercapto-thioxanthone (TX-SH), Thioxanthone (TX) and α-aminoketone (Irg-907) are employed as the...