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No dia 25 de Setembro de 2023, faremos a migração do Repositório Institucional para a versão 7.6 do sistema DSpace. Por este motivo, o Repositório Institucional ficará indisponível neste dia. Contamos com a compreensão de todos.
Departamento de Química Analítica
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Recent Submissions
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Contribution of CuO on lamellar BiVO4/Bi2O3-based semiconductor for photoconversion of CO2
; Brito, Juliana Ferreira de
; ; ; Menezes, Beatriz Costa e Silva ; Zanoni, Maria Valnice Boldrin ; (Journal of Photochemistry and Photobiology A: Chemistry, 2023) [Artigo]
Lamellar BiVO4 is a photocatalyst recognized as an effective visible-light-driven semiconductor that is active in CO2 reduction but faces challenges such as high recombination rate and low mobility of photogenerated charge ... -
Electrochemical sensor based on carbon nanotube decorated with manganese oxide nanoparticles for naphthalene determination
; ; ; ; Beluomini, Maísa Azevedo; Stradiotto, Nelson Ramos ; (Analytical Sciences, 2023) [Artigo]
In this work, an electrochemical sensor was developed for the determination of naphthalene (NaP) in well water samples, based on a glass carbon electrode (GCE) modified as a nanocomposite of manganese oxides (MnOx) and ... -
Designing Highly Photoactive Hybrid Aerogels for In-Flow Photocatalytic Contaminant Removal Using Silica-Coated Bacterial Nanocellulose Supports
Almeida da Silva, Thaís Caroline; Marchiori, Leonardo ; ; ; ; Romano Domeneguetti, Rafael ; Rojas-Mantilla, Hernán Dario ; Boldrin Zanoni, Maria Valnice ; ; et al. (ACS Applied Materials and Interfaces, 2023) [Artigo]
This study explores the use of silica-coated bacterial nanocellulose (BC) scaffolds with bulk macroscopic yet nanometric internal pores/structures as functional supports for high surface area titania aerogel photocatalysts ... -
Photobioelectrocatalysis of Intact Photosynthetic Bacteria Exposed to Dinitrophenol
de Moura Torquato, Lilian Danielle; ; ; ; ; ; Boldrin Zanoni, Maria Valnice ; (ChemElectroChem, 2023) [Artigo]
The outstanding metabolic versatility of purple non-sulphur bacteria makes these organisms an ideal candidate for developing photobioelectrochemical systems applicable in contaminated environments. Here, the effects of 2,4 ... -
Simultaneous disinfection of urban wastewater and antibiotics degradation mediated by CuMgFe-B(OH)4 layered double hydroxide with different oxidizing agents
de Melo Costa-Serge, Nayara; ; Fernandes Pupo Nogueira, Raquel ; (Chemical Engineering Journal, 2023) [Artigo]
The activation of peroxymonosulfate (PMS), peroxydisulfate (PDS) and hydrogen peroxide (H2O2) by CuMgFe-B(OH)4 layered double hydroxide (LDH) was investigated for the degradation of selected antibiotics (i.e., sulfamethoxazole, ... -
Sensing Materials: UV/Vis-Based Optical Sensors for Gaseous and Volatile Analytes
; ; Lamarca, Rafaela Silva; ; Cardoso, Arnaldo Alves ; Lima Gomes, Paulo Clairmont F. de ; (Encyclopedia of Sensors and Biosensors: Volume 1-4, First Edition, 2022) [Capítulo de livro]
Quantification of chemical compounds in the gas phase is essential in many different scenarios, such as the monitoring of gaseous analytes in environmental, clinical, and industrial samples, as well as the detection of ... -
Photoelectrocatalytic CO2 reduction
Brito, Juliana Ferreira de; ; Zanoni, Maria Valnice Boldrin (Photoelectrocatalysis: Fundamentals and Applications, 2022) [Capítulo de livro]
Reuse or conversion of CO2 using economical and simple methods is one of the greatest challenges of this century. The present work aims to show how photoelectrocatalysis has gained attention in this field. A critical ... -
A Novel Synthesis of a Magnetic Porous Imprinted Polymer by Polyol Method Coupled with Electrochemical Biomimetic Sensor for the Detection of Folate in Food Samples
Khan, Sabir; Wong, Ademar ; ; Sotomayor, María del Pilar Taboada (Chemosensors, 2022) [Artigo]
The present study reports the development and application of a novel, sensitive, and selective voltammetric sensor for the quantitation of folate or vitamin B9 in foodstuffs. The sensor was made from magnetic molecularly ... -
Self-Supported Biopolymeric Films Based on Onion Bulb (Allium cepa L.): Gamma-Radiation Effects in Sterilizing Doses
; ; ; ; ; ; Ribeiro, Clóvis Augusto; ; ; (Polymers, 2023) [Artigo]
Sterilization is a fundamental step to eliminate microorganisms prior to the application of products, especially in the food and medical industries. γ-irradiation is one of the most recommended and effective methods used ... -
Microwave-assisted hydrothermal synthesis of Sn3O4 and SnO for electrocatalytic reduction of CO2 to high-added-value compounds
Romeiro, Fernanda da Costa; Martins, Alysson Stefan ; Perini, João Angelo Lima ; Silva, Beatriz Costa e ; Zanoni, Maria Valnice Boldrin ; Orlandi, Marcelo Ornaghi (Journal of Materials Science, 2023) [Artigo]
Sn-based electrocatalysts have recently been applied for CO2 reduction to generate fuels. Here, tin oxide crossed architectures (SnO) and petal-like Sn3O4 semiconductors were synthesized using the microwave-assisted ... -
Closed-Vessel Conductively Heated Digestion System for the Elemental Analysis of Agricultural Materials by High-Resolution Continuum Source Flame Atomic Absorption Spectrometry (HR-CS FAAS)
Traversa, Leonardo Clemente; Santiago, João Victor Biagi ; de Oliveira, Evilim Martinez ; Ferreira, Edilene Cristina ; ; Gomes Neto, José Anchieta (Analytical Letters, 2023) [Artigo]
Novel applications of the closed-vessel conductively heated digestion system (CHDS) are proposed to digest biomass, biochar, oyster shell flour, bone meal and swine manure for the determination of Ca, K, Mg, Na, Cu, Fe, ... -
Disposable three-dimensional graphene oxide electrode with sandwich-like architecture for the determination of ascorbic acid in fruit juices
Buffon, Edervaldo; Stradiotto, Nelson Ramos (Materials Today Communications, 2023) [Artigo]
This work reports the development of a three-dimensional graphene oxide structure on the screen-printed electrode surface for the detection of ascorbic acid. This electrode was characterized by scanning electron microscopy, ... -
Disposable p-coumaric acid sensor containing reduced graphene oxide, nickel nanoparticles and biodegradable molecularly imprinted polymer for fruit peel analysis
Buffon, Edervaldo; Stradiotto, Nelson Ramos (Journal of Food Composition and Analysis, 2023) [Artigo]
This work reports the development of a disposable molecularly imprinted electrochemical sensor based on the electropolymerization of 3-indoleacetic acid on an electrode containing reduced graphene oxide and nickel nanoparticles ... -
Polymer of intrinsic microporosity (PIM-1) enhances hydrogen peroxide production at Gii-Sens graphene foam electrodes
Azevedo Beluomini, Maisa; ; ; ; ; ; ; ; ; Ramos Stradiotto, Nelson et al. (Electrochemistry Communications, 2022) [Artigo]
3D-graphene foam electrodes (Gii-Sens) immersed in a phosphate buffer solution of pH 7 are shown to generate hydrogen peroxide at a significantly faster rate in the presence of a nanoparticulate polymer of intrinsic ... -
An Automated, Self-Powered, and Integrated Analytical Platform for On-Line and In Situ Air Quality Monitoring
; ; ; ; Cardoso, Arnaldo Alves; (Chemosensors, 2022) [Artigo]
Air quality monitoring networks are challenging to implement due to the bulkiness and high prices of the standard instruments and the low accuracy of most of the described low-cost approaches. This paper presents a low-cost, ... -
Molecularly imprinted polymers in hybrid materials using inorganic nanoparticles
; ; ; Khan, Sabir; ; del Pilar Taboada Sotomayor, Maria (A Complete Guide to Hybrid Materials, 2020) [Capítulo de livro]
Molecularly imprinted polymers (MIPs) have been widely implemented in the elaboration of analytical tools for the detection and separation of molecules due to their capacity of interacting specifically with target molecules. ... -
Precipitation polymerization
Khan, Sabir; ; ; ; Jara-Cornejo, Eduardo EJ ; Torres, Sergio Espinoza ; Jacinto-Hernández, C. ; ; ; et al. (Smart Polymer Nanocomposites: Design, Synthesis, Functionalization, Properties, and Applications, 2022) [Capítulo de livro]
Polymerization method has become the most extended procedure of chemical synthesis, characterization of nanoparticles with novel morphology and their wide applications in separation, drug delivery via intravenous and some ... -
Characterization of polymeric nanoparticles
Khan, Sabir; Wong, Ademar ; Zeb, Shakeel ; Mortari, Bianca ; Villa, Javier E.L. ; Sotomayor, Maria D.P.T. (Smart Polymer Nanocomposites: Design, Synthesis, Functionalization, Properties, and Applications, 2022) [Capítulo de livro]
Polymeric nanoparticles (PNPs) are solid colloidal particals ranging in size from 10 to 1000nm(1µm), and these are broadly used due to their exceptional properties and high surface areas. Polymeric-based nanoparticles ... -
Degradation of contaminants of emerging concern in a secondary effluent using synthesized MOF-derived photoanodes: A comparative study between photo-, electro- and photoelectrocatalysis
; Irikura, Kallyni; ; ; Boldrin Zanoni, Maria Valnice ; (Chemosphere, 2023) [Artigo]
Three metal-organic framework (MOF)-based photoanodes were prepared by deposition on TiO2 nanotubes using Ti as substrate (Ti/TiO2NT): i) Ti/TiO2NT-Au@ZIF-8, ii) Ti/TiO2NT-Ru3(BTC)2, iii) Ti/TiO2NT-UiO-66(Zr)NH2. These ... -
Endocrine disrupting activity in sewage sludge: Screening method, microbial succession and cost-effective strategy for detoxification
; ; ; ; ; Marchi, Mary Rosa R. (Journal of Environmental Management, 2023) [Artigo]
Sewage sludge (SS) presents a high agronomic potential due to high concentrations of organic matter and nutrients, encouraging its recycling as a soil conditioner. However, the presence of toxic substances can preclude ...