Abstract
Ag-decorated Ti3+-doped TiO2 nanocomposites featuring plentiful ultra-small Ag nanoparticles and Ti3+ ions are ideal materials for the photocatalytic degradation of organic pollutants due to the improved light-absorption ability and the separation rate of photo-generated carriers, resulting from the plasma effect of Ag nanoparticles, abundant Ag/TiO2 Schottky interferences, and Ti3+ ions. However, it is still a challenge to synthesize Ag-decorated Ti3+-doped TiO2 nanocomposites. Herein, we present an ultra-fast deflagration method to transform energetic AgN3 nanoparticles to Ag particles at a size of several nanometers and to achieve Ti3+ doping using N radicals ablation in one-step. The extraordinary photocatalytic performance obtained verifies the practicability of this synthetic approach. Moreover, this work opens up a new approach to fabricating Ag-decorated and doped materials in one step and expands the scope for future material design.
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