Výsledky vyhledávání - "Olena Artiushenko"

[pt] ADSORVENTES À BASE DE SÍLICA GEL MODIFICADA COM DERIVADOS DE ÁCIDO FOSFÔNICO, HIDROXÂMICO E PIRIDINOCARBOXÍLICO PARA EXTRAÇÃO EM FASE SÓLIDA DISPERSIVA E SEPARAÇÃO DOS ELEMENTOS TERRAS RARAS

Autor: OLENA ARTIUSHENKO

[pt] Os elementos terras raras (ETRs) têm sido cada vez mais utilizados na indústria moderna como os componentes essenciais de catalisadores, ímãs de alto desempenho, supercondutores, sistemas de telecomunicações. O desenvolvimento da energia l

Externí odkaz: https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=48221@1
https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=48221@2

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Rationally designed dipicolinate-functionalized silica for highly efficient recovery of rare-earth elements from e-waste

Autor: Tatiana D. Saint'Pierre, Wendy J. Sandoval Rojano, Gabriel A. Freitas, Michael Nazarkovsky, Jiang Kai, Vladimir Zaitsev, Olena Artiushenko

Publikováno v: Journal of hazardous materials. 408

Composition of the immobilized layer plays a crucial role in metal adsorption properties of complexing organo-mineral materials. Ignoring the specific features of chemical reactions on solid surface can lead to a significant deterioration in the targ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a269be7ae4113cac35d05d3406311059
https://pubmed.ncbi.nlm.nih.gov/33429146

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Recovery Of Lanthanide Ions On Silica Adsorbent With Covalently Immobilized Derivative Of 2,6-Pyridinedicarboxylic Acid

Autor: Wendy Sandoval, Olena Artiushenko, Tatiana D. SaintґPierre, Vladimir Zaitsev

Publikováno v: Methods and Objects of Chemical Analysis. :192-199

The electrochemical properties of triamcinolone acetonide on carbon-paste electrodes have been studied. By the cyclic voltammetry method it was revealed that this steroid is irreversibly reduced at a potential from -0.9 to -1.4 V, depending on the so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2281749bfa2f403efcf0710cb1dfd86d
https://doi.org/10.17721/moca.2018.192-199

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Structural, optical and catalytic properties of ZnO-SiO2 colored powders with the visible light-driven activity

Publikováno v: Journal of Photochemistry and Photobiology A: Chemistry. 421:113532

A set of samples of novel colorized zinc oxide-nanosilica composites was synthesized and analyzed. The color and optical properties are directly dependent on ZnO concentration in the composites. Visible light-driven (λ = 550 nm) catalytic activity o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::269df43ca5d43e59b4ece306ce887dad
https://doi.org/10.1016/j.jphotochem.2021.113532

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SILICA-BASED ADSORBENTS WITH IMMOBILIZED DERIVATIVES OF PHOSPHONIC, HYDROXAMIC AND PYRIDINECARBOXYLIC ACIDS FOR DISPERSIVE SOLID PHASE EXTRACTION AND SEPARATION OF RARE EARTH ELEMENTS

Autor: OLENA ARTIUSHENKO

Publikováno v: Repositório Institucional da PUC-RIO (Projeto Maxwell)
Pontifícia Universidade Católica do Rio de Janeiro (PUC-RIO)
instacron:PUC_RIO

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTITUIÇÕES COMUNITÁRIAS D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::4a4e4f6756b281aabcd56432afa9f6c5
https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=48221@1

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Influence of competitive eluting agents on REEs recovery from silica gel adsorbent with immobilized aminodiphosphonic acid

Autor: Vladimir Zaitsev, Olena Artiushenko, Liudmila Kostenko

Publikováno v: Journal of Environmental Chemical Engineering. 8:103883

It was demonstrated that traces of rare earth elements (REEs) can be quantitatively preconcentrated from contaminated water with pH ≥ 3 on a silica-based adsorbent with covalently immobilized amino-di(methylenephosphonic) acid (SiO2-AdPA). However,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3978bfcf5392b4b75fffcaedb71ea74c
https://doi.org/10.1016/j.jece.2020.103883

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Reusable hydroxamate immobilized silica adsorbent for dispersive solid phase extraction and separation of rare earth metal ions

Autor: Michael Nazarkovsky, Olena Artiushenko, Vladimir Zaitsev, Eloah Pereira Ávila

Publikováno v: Separation and Purification Technology. 231:115934

Silica gel with covalently immobilized N-Benzoyl-N-phenylhydroxylamine fragments (SiO2-BPHA) has been successfully prepared using surface assembling approach. The SiO2-BPHA is characterized by FTIR, high-resolution X-ray photoelectron spectroscopy, b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6bd738d5dd8faa8c859ea16d531f5511
https://doi.org/10.1016/j.seppur.2019.115934

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Preparation and characterization of organofunctionalized bentonite clay bearing aminophosphonic groups in heavy metal uptake

Autor: Vladimir Zaitsev, Olena Artiushenko, Iryna Tomashchuk, Tatiana Kovalchuk, L.S. Kostenko

Publikováno v: Journal of Environmental Chemical Engineering. 7:103434

Bentonite (Bnt) with covalently immobilized N-propylaminodi(methylenephosphonic) groups (Bnt-ADPA) was obtained through a two-step synthesis including aminosilanization and phosphorylation of resulting aminobentonite through Moedritzer-Irani reaction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::22d938f20795eea727214aa0780c9919
https://doi.org/10.1016/j.jece.2019.103434

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