L
Luiza N.H. Arakaki
Researcher at Federal University of Paraíba
Publications - 44
Citations - 1192
Luiza N.H. Arakaki is an academic researcher from Federal University of Paraíba. The author has contributed to research in topics: Silica gel & Adsorption. The author has an hindex of 20, co-authored 44 publications receiving 1149 citations. Previous affiliations of Luiza N.H. Arakaki include State University of Campinas.
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Journal ArticleDOI
Chemisorption and thermodynamic data of the interaction between a chelate free acidic center with basic groups attached to grafted silicas.
Luiza N.H. Arakaki,Antonio N. de Sousa,José G.P. Espínola,Severino F. de Oliveira,Claudio Airoldi +4 more
TL;DR: Exothermic enthalpic results were obtained for the triple bond SilSNH(2) matrix, and the spontaneity of these systems was reflected in negative free Gibbs energy and positive from entropic values.
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INTERACTION OF DIVALENT CATIONS Zn, Cd AND Hg ON SURFACE OF SILICA GEL WITH AMINOETHANETHIOL AS EVALUATED BY CALORIMETRIC TITRATION
Vera Lucia S. Augusto Filha,Oberto G. da Silva,J. R. da Costa,Albaneide F. Wanderley,Maria G. Fonseca,Luiza N.H. Arakaki +5 more
TL;DR: In this article, the interaction of zinc, cadmium and mercury on surface of silica gel modified with 2-aminoethanethiol, using 3-chloropropyltrimetoxysilane as a precursor, was investigated.
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Quimissorção de cátions divalentes em sílica gel modificada com ácido tioglicólico: a influência do pH e força iônica
Kaline S. Sousa,Vera Lucia S. Augusto Filha,Victor Hugo Araújo Pinto,Maria G. Fonseca,José G.P. Espínola,Luiza N.H. Arakaki +5 more
TL;DR: In this paper, a novel type of heavy metal adsorbent was prepared by the covalent grafting of thioglycolic acid molecules on a silica gel surface previsiouly modified with 3-aminopropyltrimethoxysilane.
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Organofunctionalized silica gel as a support for lipase
André Leonardo P. Silva,Raquel G. Nascimento,Luiza N.H. Arakaki,Tomaz Arakaki,José G.P. Espínola,Maria G. Fonseca +5 more
TL;DR: In this article, a modified silica gel was tested for the ability to immobilize Burkholderia cepacia lipase, and the results indicated that the enzyme-modified silica-gel (immobilization at 24h) was more stable under reaction conditions than other systems.
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Synthesis and characterization of hybrids derived from vermiculite chloropropyl and aliphatic diamines
Ana Paula de Melo Alves,André Leonardo P. Silva,Oberto G. da Silva,Maria G. Fonseca,Luiza N.H. Arakaki,J. G. P. Espínola +5 more
TL;DR: Silylation of vermiculite surface with organosilane (H3CO)3SiR, being R is the corresponding organic moieties, were carried out to yield organofunctionalized nanomaterial, named as VCl as mentioned in this paper.