Synthesis of quantum-size cerium oxide nanocrystallites by a novel homogeneous precipitation method

α-Fe2O3 nanoplates: PEG-600 assisted hydrothermal synthesis and formation mechanism

“…According to the quantum size effect, the nano-scaled semiconductor crystals keep the structural features of the bulk solid but the molecular orbitals should be discrete rather than continuous bands and higher irradiation energy is required to achieve electron excitations. Similar phenomena have been observed in cases of other metal oxides [37,38].…”

Synthesis and characterization of pure and Cu doped CeO2 nanoparticles: photocatalytic and antibacterial activities evaluation

“…The calculated values for pure CeO 2 are about 2.82 eV and this value got decreased to 2.74, 2.68 and 2.56eV eV for Cu (1%, 3% and 5 mol %) doped samples showing an increase in the absorption in the longer wavelength region. The indirect band gap energy is well in agreement with the literature [13,14].…”

Structural characteristics of quantum-size ceria nano particles synthesized via simple ammonia precipitation

“…Very recently, ecotoxicological assessment of CeO 2 nanoparticles has been studied by Rodea Palomers et al [15]. Other latest advances in this area include search for novel synthetic strategies for achieving nanoparticles of ceria with desirable properties, and their surface modifications [16][17][18][19]. In the present work, we report a simple homogeneous ammonia precipitation method to obtain cerium oxide nano crystals which have optimum size for many applications, from aqueous cerium nitrate solution.…”