New Synthesis Strategies for Luminescent YVO4:Eu and EuVO4 Nanoparticles with H2O2 Selective Sensing Properties

作者：Duee Natacha; Ambard Chrystel; Pereira Franck; Portehault David; Viana Bruno; Valle Karine; Autissier Denis; Sanchez Clement^*

来源：Chemistry of Materials, 2015, 27(15): 5198-5205.

DOI：10.1021/acs.chemmater.5b01083

Nowadays, because of safety demands, the controlled design of efficient and selective sensors for hydrogen peroxide is paramount. Therefore, we develop herein new strategies of aqueous synthesis of crystalline YVO4:Eu and EuVO4 nanoparticles based on a rigorous control of the pH and of the nucleation step via microwave heating. These routes allow a precise control of composition, nanostructure, and surface states of the resulting luminescent nanoparticles that are structurally and optically characterized via a large set of modern techniques. Moreover, these nanoparticles exhibit reproducible optical responses that are highly selective to hydrogen peroxide and present excellent detection thresholds as low as 0.05 ppm in solution. These remarkable performances allow the design of a new family of H2O2 sensors, which surpass state-of-the-art inorganic optical sensors in liquid phase detection tests.

• 出版日期2015-8-11
• 单位中国地震局