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20:18, seg fev 17

Acesso Aberto/TP



vol. 47, No. 10, 2024



Artigo Quim. Nova 2024, 47(10), e-20240061, 1-9

 

Estudo teórico e experimental de derivados de clorinas e bacterioclorinas visando a sustentabilidade

Andrés C. A. AcevedoI; Juliana K. BilhaI; Priscila R. M. PereiraI; Paula A. J. AraujoII; Marciana P. UlianaI,II,*


Theoretical calculations are tools in predicting sustainable photosensitizing molecules, synthesized derivatives of chlorins and bacteriochlorins. The theoretical data obtained with the Gaussian 09 software using density functional theory (DFT) are similar to experimental spectroscopic data.

http://dx.doi.org/10.21577/0100-4042.20240061

Publicado online: setembro 24, 2024
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Quim. Nova 2024, 47(10), e-20240062, 1-9

 

Development of a voltammetric method for the simultaneous determination of pesticides in surface water using a composite electrode

Gleiciane Barros Ferreira da SilvaI,II; Mateus Ferreira AmaralI; Felipe Perin BezerraI; Ailton José TerezoI; Marilza CastilhoI


Graphical abstract of composite electrode as electrochemical material for the simultaneous determination of pesticides in surface water and its oxidation behavior study.

http://dx.doi.org/10.21577/0100-4042.20240062

Publicado online: setembro 27, 2024
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Quim. Nova 2024, 47(10), e-20240063, 1-7

 

Vestígios do derrame de petróleo de 2019: avaliação da presença de hpa e btex em produtos de pesca

Crislaine F. BertoldiI; Rafael G. DolattoI; Luiz F. L. de OliveiraII; Lennon F. ReisII; Maria C. CanelaII; Julyanne T. B. de MéloIII; Abinoan da S. RodriguesIII; Ana P. PaimIII; Marco T. GrassiI,*


The contamination of ocean water with oil spills can be a potential problem for food security. The study investigated the presence of polycyclic aromatic hydrocarbons (PAH) and benzene, toluene, ethylbenzene, and xylene (BTEX) in fishes from the Brazilian coast and Rio de Janeiro (RJ) had the higher contamination among the samples.

http://dx.doi.org/10.21577/0100-4042.20240063

Publicado online: setembro 27, 2024
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Quim. Nova 2024, 47(10), e-20240064, 1-11

 

Uso de coagulantes no tratamento de efluente de lavanderia hospitalar: a busca por processos físico-químicos sustentáveis visando remoção de poluentes e microrganismos patogênicos

Eduarda V. S. GomesI; Iramaia A. MoraesI; Felipe C. MazzaI; Fernanda R. C. DamascenoI,II,*; Juliana O. C. BrumI,III


Physico-chemical treatment of hospital laundry wastewater using aluminum sulfate, tannin and Moringa oleifera seeds aiming for the removal of pollutants and pathogens.

http://dx.doi.org/10.21577/0100-4042.20240064

Publicado online: setembro 30, 2024
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Quim. Nova 2024, 47(10), e-20240065, 1-8

 

Explorando o mecanismo de degradação enzimática do poliuretano (PU) por meio das poliuretanases esterases A e B (PueA E PueB): uma abordagem integrada de docking, Dinâmica Molecular (MD) e QM/MM

Thiago Antonio Valdez GarciaI,*; José Fernando Ruggiero BachegaII,III; Paulo Augusto NetzI,*


Representation of the stages of the study of the enzymatic degradation of polyurethane (PU): (a) docking, (b) molecular dynamics and in (c) the free energy profile of the proposed reaction mechanism.

http://dx.doi.org/10.21577/0100-4042.20240065

Publicado online: outubro 8, 2024
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Quim. Nova 2024, 47(10), e-20240068, 1-7

 

Greenhouse gas emissions from constructed wetlands for anaerobic sludge treatment: effect of seasonality, plant species type, and sludge loading - a preliminary analysis

Diogo A. P. da SilvaI; Mateus P. MatosII; José Antônio Ribeiro de AraújoI; Thiago de A. NevesI,*


The dewatered sludge from the anaerobic reactor is directed to the reservoir, and subsequently, loading of the wetlands is carried out at different application rates.

http://dx.doi.org/10.21577/0100-4042.20240068

Publicado online: outubro 17, 2024
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Quim. Nova 2024, 47(10), e-20240069, 1-9

 

Aplicação da lama de beneficiamento de rochas ornamentais como catalisador no processo foto fenton para a descoloração de corante em solução aquoso

Mayra N. MouraI; Ana C. S. CamposI; Victor L. O. NevesI; Victória P. PoloniniI; Jenifer R. AlmeidaI; Luma B. MagnagoI;
Sandra A. D. FerreiraI; Fabielle C. MarquesII; Marcos B. J. G. de FreitasI e Maria F. F. LelisI,*


This article presents the photocatalyst activity of abrasive mud waste on decolorization methylene blue dye in aqueous reaction medium with H2O2 and UV light from a source lamp put at 20 cm apart.

http://dx.doi.org/10.21577/0100-4042.20240069

Publicado online: outubro 18, 2024
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Quim. Nova 2024, 47(10), e-20240070, 1-10

 

Rapid degradation of malachite green dye wastewater using H2O2 under recyclable silica/magnetic nanocatalyst

Jingheng Ning*; Rui Wei; Liming Sha; Chang Sun; Qunying Zuo; Dong-er Chen; Jiaqian Wei; Qiongcan Hu


The degradation of malachite green by H2O2 was enhanced by 179-fold when catalyzed by Fe3O4@SiO2, and at the same time, the catalytic degradation of malachite green could be stabilized in a wider pH range.

http://dx.doi.org/10.21577/0100-4042.20240070

Publicado online: outubro 22, 2024
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Quim. Nova 2024, 47(10), e-20240071,

 

Determinação por espectrometria de massas do potencial de bioacumulação de contaminantes emergentes em biofilme

Luana Mayumi Takahasi MarquesI,*; Gabriela ReichertII; Rebeca de Mello CesarIII; Thais Cristine Nastally CanoI;
Júlio César Rodrigues de AzevedoI,II


The graphic abstract represents the cycle from the entry of emerging contaminants into aquatic environments, sampling and separation of compounds by liquid chromatography coupled to mass spectrometry.

http://dx.doi.org/10.21577/0100-4042.20240071

Publicado online: outubro 22, 2024
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Quim. Nova 2024, 47(10), e-20240074, 1-9

 

Preparação de biocompósito à base de amido termoplástico reforçado com fibras de eucalipto: avaliação do efeito do tamanho das fibras nas propriedades mecânicas e de sorção

Luisa B. dos Santos; Tonny A. Moreira; Cleocir J. Dalmaschio; Marta A. Machado


Thermoplastic starch-based biocomposites, derived from cassava, reinforced with eucalyptus fiber were prepared by hot compression molding. Sample reinforced with larger fibers showed improvement in mechanical properties and reduced moisture/water sorption.

http://dx.doi.org/10.21577/0100-4042.20240074

Publicado online: outubro 25, 2024
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Quim. Nova 2024, 47(10), e-20240077, 1-9

 

Green chemistry: using more sustainable techniques to estimate the water quality of the Uberaba River using orbital optical sensors

Tatiane Carvalho MaedaI; Franciele Morlin CarneiroII; José Waldir de Sousa FilhoI; Luciano Shozo ShiratsuchiIII; Geoffroy Roger Pointer MalpassI,*


This study investigated the feasibility of estimating the water quality parameters of the Uberaba River by remote sensing, a more sustainable technique, since it does not generate waste like conventional chemical analyses.

http://dx.doi.org/10.21577/0100-4042.20240077

Publicado online: outubro 28, 2024
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Revisão Quim. Nova 2024, 47(10), e-20240066, 1-9

 

Multiresidue determination of pesticides in exotic fruits: a review of the analytical strategies and residue occurrence

Rafael Bel Prestes da Silva; Júlia Antunes de Oliveira; Cleusa Fátima Zanchin; Pimpernelli Jonco dos Santos; Osmar Damian Prestes; Renato Zanella


This review aims to provide an overview of the methods for determining pesticide residues in exotic fruits, focusing on the strategies employed by these methods and the occurrence of pesticide residues.

http://dx.doi.org/10.21577/0100-4042.20240066

Publicado online: outubro 10, 2024
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Total access: 251

Quim. Nova 2024, 47(10), e-20240079, 1-12

 

Biochar from lignocellulosic biomass: a sustainable circular economy approach for removing organic and inorganic contaminants

Rayanne O. Araujo; Otorvan C. dos Anjos; Luiz K. C. de Souza; Giovana A. Bataglion*


Biochar is derived from the thermochemical conversion of lignocellulosic biomass residues. The material is activated through a combination of chemical and physical processes to achieve desirable textural properties, making it an effective adsorbent for environmental remediation of both organic and inorganic contaminants.

http://dx.doi.org/10.21577/0100-4042.20240079

Publicado online: outubro 30, 2024
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Educação Quim. Nova 2024, 47(10), e-20240060, 1-8

 

Educación sostenible y salud humana en la sociedad: reflexiones sobre la influencia de la química verde pospandemia

Romina A. Arreche; Patricia G. Vázquez*


This work will focus on Sustainable Development Goals 3 and 4, respectively, which will be achieved if citizens have a sustainable education. This plays an important role in having a healthy life.

http://dx.doi.org/10.21577/0100-4042.20240060

Publicado online: setembro 18, 2024
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Quim. Nova 2024, 47(10), e-20240067, 1-11

 

Abordagem da educação ambiental no ensino de química: uma análise a partir de artigos publicados na Revista Química Nova na escola (QNEsc)

Sergiana S. de Oliveira AprigioI; Maria Vitória L. NascimentoI; Leonardo B. CantanhedeI,*; Severina C. da Silva CantanhedeII;
Osiel C. da Trindade JuniorI; Douglas R. e Silva BarbosaI; Lidiane da Silva AraújoI


Teaching chemistry as a tool for sustainability based on discussions of environmental chemistry in the classroom: challenges and achievements in 27 years of disseminating research in chemical education through the journal Quimica Nova na Escola (QNESc).

http://dx.doi.org/10.21577/0100-4042.20240067

Publicado online: outubro 15, 2024
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Errata Quim. Nova 2024, 47(10), e-20240072, 1

 

Errata


http://dx.doi.org/10.21577/0100-4042.20240072

Publicado online: outubro 31, 2024
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On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
Química Nova
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