TY - JOUR A1 - Bartosewicz, Bartosz A1 - Liszewska, Malwina A1 - Budner, Bogusław A1 - Michalska-Domańska, Marta A1 - Kopczyński, Krzysztof A1 - Jankiewicz, Bartłomiej J. T1 - Fabrication of Ag-modified hollow titania spheres via controlled silver diffusion in Ag–TiO2 core–shell nanostructures JF - Beilstein Journal of Nanotechnology PY - 2020/// VL - 11 SP - 141 EP - 146 SN - 2190-4286 DO - 10.3762/bjnano.11.12 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.11.12 KW - core–shell nanostructures KW - hollow spheres KW - silver diffusion KW - silver-modified titanium dioxide KW - titania N2 - Inorganic hollow spheres find a growing number of applications in many fields, including catalysis and solar cells. Hence, a simple fabrication method with a low number of simple steps is desired, which would allow for good control over the structural features and physicochemical properties of titania hollow spheres modified with noble metal nanoparticles. A simple method employing sol–gel coating of nanoparticles with titania followed by controlled silver diffusion was developed and applied for the synthesis of Ag-modified hollow TiO2 spheres. The morphology of the synthesized structures and their chemical composition was investigated using SEM and X-ray photoelectron spectroscopy, respectively. The optical properties of the synthesized structures were characterized using UV–vis spectroscopy. Ag–TiO2 hollow nanostructures with different optical properties were prepared simply by a change of the annealing time in the last fabrication step. The synthesized nanostructures exhibit a broadband optical absorption in the UV–vis range. ER -