Výsledky vyhledávání - "Moema B. S. Botelho"

Mesoporous aluminosilicate glasses: Potential materials for dye removal from wastewater effluents

Autor: Carsten Doerenkamp, Flavio P. Almeida, Andrea S. S. de Camargo, Elizaveta Kessler, Moema B. S. Botelho, C.R. Ferrari, Hellmut Eckert

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Mesoporous amorphous sodium-aluminosilicate host matrices of composition Si1−xAlxNaxO2, 0.1 ≤ x ≤ 0.33, obtained by sol-gel methodology, have been used as sequestrating agents for the cationic dye Rhodamine 6 G (Rh6G) in solution. Favorable ads

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a9280d9f0a5f01febc97aa7bddff63b
https://doi.org/10.1016/j.jssc.2017.06.018

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New Luminescent Host–Guest System Based on an Iridium(III) Complex: Design, Synthesis, and Theoretical–Experimental Spectroscopic Characterization

Autor: Hellmut Eckert, Andrea S. S. de Camargo, Thiago Branquinho de Queiroz, Rodrigo Q. Albuquerque, Moema B. S. Botelho, Jesús M. Fernández-Hernández

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

This work presents the design, preparation, and characterization of a very efficient solid state luminescent material based on a cationic bis-cyclometalated Ir(III) complex [Ir(dfptrBn)2(dmbpy)]+ (dfptrBn = 1-benzyl-4-(2,4-difluorophenyl)-1H-1,2,3-tr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3ec4bb7ca0401243a3f67f4ded9a0e6
https://doi.org/10.1021/jp309873y

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Efficient luminescent materials based on the incorporation of a Eu(III)tris-(bipyridine-carboxylate) complex in mesoporous hybrid silicate hosts

Autor: Moema B. S. Botelho, T.B. de Queiroz, A.S.S. de Camargo, Hellmut Eckert

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The study of the photoluminescent characteristics of host–guest systems based on highly emissive trivalent rare earth complexes such as Eu 3+ – tris-bipyridine-carboxylate, immobilized in solid state host matrices, is motivated by their potential

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b430514cbb100fc479ef3140534ef39c

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New fluorophosphate glasses co-doped with Eu3+ and Tb3+ as candidates for generating tunable visible light

Autor: A.S.S. de Camargo, T.S. Gonçalves, Moema B. S. Botelho, T.B. de Queiroz, M. Reza Dousti

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

A series of optically active Eu3+ and Tb3+ doped fluorophosphate glasses with compositions (BaF2)0.25(SrF2)0.25(AlF3)0.10[Al(PO3)3]0.20(YF3)0.20-x(EuF3 and/or TbF3)x (x = 0 to 0.04) was prepared and characterized by optical spectroscopy. While embedd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27fb7aadc42466005786edebf2e7c196

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Towards the design of highly luminescent europium(III) complexes

Autor: Andrea S. S. de Camargo, María Dolores Gálvez-López, Rodrigo Q. Albuquerque, Luisa De Cola, Moema B. S. Botelho

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We report on the synthesis, characterization, and photophysical investigation of a new nine-coordinate Eu3+ complex containing three tridentate ligands and exhibiting one of the highest emission quantum yields (Φ = 85 %) so far reported in solution.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53919ef1ad057128acb4c141c69fd8bc

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Strategies for reducing dye aggregation in luminescent host-guest systems: Rhodamine 6G incorporated in new mesoporous sol-gel hosts

Autor: Thiago Branquinho de Queiroz, Andrea S. S. de Camargo, Leonardo De Boni, Moema B. S. Botelho, Hellmut Eckert

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Aiming at the design of new luminescent host-guest materials with minimized aggregation effects, two classes of sol-gel derived mesoporous materials were explored as hosts for Rhodamine 6G (Rh6G) dye: The first consists of pure (SiO2) and phenyl-modi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9449e29b8ae7886a692cb7e3b64a609b
https://doi.org/10.1063/1.4795506

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Iridium(iii)–surfactant complex immobilized in mesoporous silica via templated synthesis: a new route to optical materials

Autor: Moema B. S. Botelho, Andrea S. S. de Camargo, Hellmut Eckert, Thiago Branquinho de Queiroz, Jesus M. Fernandez-Hernandez, Luisa De Cola

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

In this work we report the preparation of a new blue-emitting material based on the templated synthesis of mesoporous silica (MCM-41) using micellar solutions of the newly synthesized monocationic metallosurfactant complex bis[1-benzyl-4-(2,4-difluor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b22ba6f251fbaf58b66201164b80dce
https://doi.org/10.1039/c1jm10878f

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