Water-Resistant Surface-Coating on Europium-Doped Strontium Aluminate Nanoparticles

The surface modification reaction was applied to the spherical nanoparticles of an elasticoluminescent material, europium-doped strontium aluminate, to improve the water-resistant property. The superior resistibility of the resulting material against water treatment was proved by scanning electron microscopy, photoluminescence, X-ray diffraction, and Fourier transform infrared measurements. Structure and property of the coating layer was also studied by solid state magic angle spinning nuclear magnetron resonance, atomic emission spectrometry, and zeta potential measurements.