PEI functionalized NaCeF₄:Tb³⁺/Eu³⁺ for photoluminescence sensing of heavy metal ions and explosive aromatic nitro compounds

Abstract

This work reports an eco-friendly hydrothermal approach for the synthesis of hexagonal NaCeF4:Tb3+/Eu3+ nanophosphors.

Fabrication of multifunctional 3D-flower-shaped NaTb(MoO4)2:Dy3+@Phen and NaTb(WO4)2:Dy3+@Phen nanoparticle materials for efficacious luminescence sensing of Fe2+ ions and photocatalytic degradation of rhodamine B in an aqueous medium

“…The broadness in the characteristic X-ray peaks of NaTb(MO 4 ) 2 :Dy 3+ @Phen is suggestive of the nanoscale anchoring of Phen on the surface of the prepared nanoparticles. The average crystal size of the nanoparticles was computed by employing the Debye–Scherrer eqn (2): 59 where L (nm) represents the crystal size, K is the Scherrer equation constant (equal to 0.89), λ = 0.15405 nm is the wavelength of the Cu Kα radiation, 2 θ is the diffraction angle, and β is the full-width at half-maximum (FWHM) of the XRD peak. The crystalline size of the nanoparticles was obtained in the range of 42.8 to 33.4 nm.…”