Synthesis and Characterization of InVO4 Nano-materials and their Photoluminescence Properties

Phase-pure Eu3+doped Gd2Sn2O7nanocrystals have been successfully synthesized via a co-precipitation processes combined with hydrothermal treatment. The crystal structure, particle size, morphologies, composition, and photoluminescence properties of the as-synthesized products were investigated by XRD, SEM, TEM, EDS and PL. The samples were single-phase cubic pyrochlore-type nanocrystals with a typical size of about 30 - 60 nm. All the samples exhibited irregular flower like secondary nanostructure assembled by primary nanoparticles. Photoluminescence properties of Gd2Sn2O7:Eu3+were investigated, and the results revealed that the as-synthesized materials displayed intense and prevailing emission located at 580 - 630 nm. The excitation spectra indicated that an energy transfer from Gd3+to Eu3+occurred. Meanwhile, the concentration quenching phenomenon was observed in Gd2Sn2O7:Eu3+nanocrystals.

Download Full-text

Synthesis and thermal characterization of luminescent hybrid composites based on bisphenol A diacrylate and NVP

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-019-08914-1 ◽

2019 ◽

Vol 138 (6) ◽

pp. 4463-4473 ◽

Cited By ~ 2

Author(s):

Renata Łyszczek ◽

Beata Podkościelna ◽

Agnieszka Lipke ◽

Agnieszka Ostasz ◽

Andrzej Puszka

Keyword(s):

Bisphenol A ◽

Lanthanide Complexes ◽

Hybrid Composites ◽

Thermal Characterization ◽

Synthesis And Characterization ◽

Photoluminescence Properties ◽

Constant Concentration ◽

Volatile Products ◽

Active Diluent

Abstract The synthesis and characterization of luminescent hybrid composites based on bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA-Acr) as a cross-linking monomer and N-vinylpyrrolidone (NVP) as an active diluent, in the presence of UV initiator (Irgacure 651), are presented. Eu(III) and Tb(III) carboxylate complexes were added as luminescent components of composites. In their preparation, a constant concentration of the initiator (1%) and the BPA-Acr to NVP (10:3) ratio were applied. The structures of the obtained materials were confirmed by the infrared spectra (ATR-FTIR). Thermal properties of the cross-linked products were determined by different thermal analysis methods in air and nitrogen (TG–DTG–DSC and TG–FTIR). Thermal stability, pathways of thermal decomposition and volatile products of degradation were determined. Photoluminescence properties of the lanthanide complexes and the obtained composites were established. These materials can have the potential application as coatings filtering harmful UV radiation.

Download Full-text

Facile synthesis of C60-nano materials and their application in high-performance water splitting electrocatalysis

Sustainable Energy & Fuels ◽

10.1039/d0se00399a ◽

2020 ◽

Vol 4 (6) ◽

pp. 2900-2906 ◽

Cited By ~ 1

Author(s):

Olivia Fernandez-Delgado ◽

Alain R. Puente-Santiago ◽

Manuel Cano ◽

Juan J. Giner-Casares ◽

Alejandro J. Metta-Magaña ◽

...

Keyword(s):

Water Splitting ◽

High Performance ◽

Synthesis And Characterization ◽

Nano Materials ◽

Facile Synthesis

Here, we report the synthesis and characterization of crystalline C60 nanomaterials and their applications as bifunctional water splitting catalysts.

Download Full-text

Synthesis and Characterization of LiFePO4 Nano-materials Prepared by Wet Chemistry

ECS Meeting Abstracts ◽

10.1149/ma2008-02/7/626 ◽

2008 ◽

Keyword(s):

Synthesis And Characterization ◽

Nano Materials ◽

Wet Chemistry

Download Full-text

Upconversion luminescence of lanthanide-doped mixed CaMoO4–CaWO4 micro-/nano-materials

Dalton Transactions ◽

10.1039/c6dt01555g ◽

2016 ◽

Vol 45 (30) ◽

pp. 12094-12102 ◽

Cited By ~ 11

Author(s):

Jing Liu ◽

Anna M. Kaczmarek ◽

Jonas Billet ◽

Isabel Van Driessche ◽

Rik Van Deun

Keyword(s):

Heat Treatment ◽

Upconversion Luminescence ◽

Synthesis And Characterization ◽

Nano Materials ◽

Red Emission ◽

Co Doping

The synthesis and characterization of Er3+,Yb3+ doped mixed CaMoO4–CaWO4 micro-/nano-upconversion materials is presented in this paper. The relative intensities of the green and red emission bands can be enhanced by heat treatment or through Gd3+ co-doping.

Download Full-text

Synthesis and Characterization of Luminescent Rod-Coil Poly[2,7-(9,9- Dihexylfluorene)] - Block-Poly(2-(Dimethylamino) Ethyl Methacrylate) by Atom Transfer Radical Polymerization

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.47-50.642 ◽

2008 ◽

Vol 47-50 ◽

pp. 642-645

Author(s):

Yang Yen Yu ◽

Wen Chen Chien ◽

Chia Liang Tsai

Keyword(s):

Atom Transfer Radical Polymerization ◽

Radical Polymerization ◽

Photophysical Properties ◽

Mixed Solvents ◽

Solvent System ◽

Synthesis And Characterization ◽

Photoluminescence Properties ◽

Ethyl Methacrylate ◽

Large Compound

The synthesis, morphology, and photophysical properties of Poly[2,7-(9,9-dihexyl fluorene)]- block-poly(2-(Dimethylamino) ethyl methacrylate) (PF-b-PDMAEMA) copolymers in various mixed solvents, i.e., THF/MeOH, DMF/MeOH, and 1,4-Dioxane/MeOH, with methanol contents of 0, 10, 25, 50, 75, 90 vol.% were reported. TEM images showed that different aggregate morphologies of PF-b-PDMAEMA, including spherical and large compound micelles, cylinder, nanorods, long stick-like structure, could be prepared by introducing different amount of methanol into the copolymer/solvent system. The results indicated that aggregate morphologies of PF-b-PDMAEMA, which obtained from various coil lengths and mixed solvents, had a great influenced on the optical and photoluminescence properties of the prepared PF-b-PDMAEMA copolymers.

Download Full-text