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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Inorganofunctionalization of Ti(IV) and Zr(IV) on the MCM-41 Surface and its Interaction with a Mixed Valence Complex to use as Isoniazid Sensing

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Magossi, Maiara de Souza [1] ; Fernandes, Daniela Silvestrini [1, 2] ; Franco, Fernanda dos Santos [1] ; Felipe, Alexsandro dos Santos [1] ; de Vicente, Fabio Simoes [3] ; do Carmo, Devaney Ribeiro [1]
Total Authors: 6
[1] Sao Paulo State Univ Julio de Mesquita Filho UNES, Fac Engn Ilha Solteira, Dept Phys & Chem, Av Brasil 56, BR-15385000 Sao Paulo - Brazil
[2] Univ Sao Paulo, Dept Chem, Fac Philosophy Sci & Letters Ribeirao Preto, Ribeirao Preto USP, Av Bandeirantes, Sao Paulo 3900, BR-14040901 Ribeirao Preto - Brazil
[3] Sao Paulo State Univ Julio de Mesquita Filho UNES, Dept Phys, Inst Geosci & Exact Sci, Av 24-A, Sao Paulo 1515, BR-13506900 Rio Claro - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of Inorganic and Organometallic Polymers and Materials; v. 31, n. 10, p. 4093-4102, OCT 2021.
Web of Science Citations: 0

In this work, it describes the preparation of Titanium and Zirconium functionalized MCM-41 and subsequent chemical modification with nickel hexacyanoferrate. The obtained materials (MTiNiH and MZrNiH) were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Dispersive Energy Spectroscopy (EDS), Porosity and Surface Area and Voltammetry Cyclic (VC). The cyclic voltammogram of MTiNiH and MZrNiH modified graphite paste were sensitive to isoniazid concentrations. The MTiNiH modified graphite pulp electrode showed an analytical curve with a linear response of 2.0 x 10(-5) to 5.0 x 10(-4) mol L-1 and detection limit of 6.12 x 10(-6) mol L-1 and MZrNiH modified electrode showed an analytical curve with a linear response of 3.0 x 10(-5) to 3.0 x 10(-4) mol L-1 and detection limit of 1.66 x 10(-5) mol L-1. After catalytic electro-oxidation of isoniazid, a study of the main interferents was performed and the recovery of isoniazid in a synthetic urine sample was also evaluated. The MTiNiH and MZrNiH materials stand out for presenting good detection limit and recovery efficiency in real samples. Therefore, these materials can be considered is a strong candidate for the construction of electrochemical sensors for quick and easy detection of isoniazid. (AU)

FAPESP's process: 18/24576-2 - Hybrid polyhedral oligomeric silsesquioxanes (POSS) and their analytical potentiallity as a sensor for organic and inorganic compounds.
Grantee:Devaney Ribeiro Do Carmo
Support Opportunities: Regular Research Grants