Upconverted persistent luminescent ZnGaSnO: Cr, Yb, Er phosphor for composite anti-counterfeiting ink.

Herein, a novel colorless anti-counterfeiting luminous ink composite material, to the best of our knowledge, was prepared by incorporating upconverted persistent luminescent :1, 5, 0.5 (ZGSO: Cr,Yb,Er) phosphors into a resin solution, followed by stirring. Owing to its small particle size and uniform distribution, ZGSO: Cr, Yb, Er exhibits long-lasting, persistent near-infrared emission at 696 nm following the stoppage of excitation by a 274 nm ultraviolet light and a 980 nm excitation.

Electrospun SiO-MgO hybrid fibers for heavy metal removal: Characterization and adsorption study of Pb(II) and Cu(II).

SiO-MgO hybrid fibers (SMHFs) were fabricated by one-step electrospinning process, characterized, and evaluated in heavy metal adsorption, for the first time. High-pressure steam (HPS) pretreated SMHFs showed high specific surface area (S) and large number of surface basic sites accompanied by the crystallization of MgO. The SMHFs showed high affinities for Pb(II) and Cu(II) with the distribution coefficients K>100 L·g (when pH > 4).

Characterization and adsorption mechanism of ZrO mesoporous fibers for health-hazardous fluoride removal.

One-dimension ZrO mesoporous fibers were successfully synthesized by utilizing the electrospinning device combining with the soft-template method. The morphology and composite of the fibers were characterized by XRD, SEM, TEM, FT-IR, TGA/DSC and XPS, and the pore structure and surface area were calculated according the BET measured results. The fluoride adsorption performance of the fibers was investigated and the adsorption capacity was upto 297.