Accès ouvert
2026
article
OpenAlex
Pietro Serraglio Figueiredo, Yasmin Vieira, Guilherme Luiz Dotto, Edson Luiz Foletto
Abstract Sandstone and white gravel residues were converted into adsorbents through alkaline fusion using KOH. Successful amorphization increased the porosity and specific surface area of sandstone from 7.07 to 36.74 m 2 g⁻ 1 , yielding an adsorbent, ASA, with markedly enhanced …
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Accès ouvert
2026
article
OpenAlex
Dison S.P. Franco, Vitor Martins Pereira Blois, Matheus Londero da Costa, Wagner Jesus da Silva Garcia et autres
This study investigates bronzite, an iron-rich orthopyroxene mineral, as a natural and cost-effective catalyst for the photo-Fenton degradation of amaranth dye in water. Bronzite powder's high Fe content, visible-light absorption (band gap of 2.48 eV), and magnetic recoverability were confirmed by XRD, …
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Accès ouvert
2026
article
OpenAlex
Pietro Serraglio Figueiredo, Guilherme Luiz Dotto, Edson Luiz Foletto
Abstract In this work, granite and quartzite residues were converted into amorphous materials through an alkaline fusion process employing KOH as the activating agent. Structural characterization confirmed the significant loss of crystallinity in both precursors, while textural analysis indicated a marked improvement …
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2026
erratum
OpenAlex
Susanne Pedroso Druzian, Natalia Pollon Zanatta, Renata K. Borchardt, Letícia Nascimento Côrtes et autres
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Accès ouvert
2026
article
OpenAlex
Íris Nunes Raupp, Gabriela Silveira da Rosa, Salah Knani, Tito José Crissien et autres
Ucuuba (Virola surinamensis) waste was converted into efficient activated carbons, aiming to promote gains and greater sustainability for the riverside cooperatives in Amazonia. The conversion was carried out by conventional pyrolysis (ACP) and microwave irradiation (ACM), and the activated carbons were used …
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Accès ouvert
2026
article
OpenAlex
Dison S.P. Franco, GUILHERME OLIVEIRA VARGAS, Cristiano Rodrigo Bohn Rhoden, Guilherme Luiz Dotto et autres
Abstract Ironstone is a decorative stone widely used in landscaping projects. Due to the presence of iron in its structure, it presents itself as a potential material to be used as a catalyst in Fenton reactions. In this work, ironstone powder was …
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2026
article
OpenAlex
Letícia Camargo Fabris, Ana C. Ferreira Piazzi Fuhr, Fernando Machado Machado, Alexandre Swarowsky et autres
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Accès ouvert
2026
article
OpenAlex
Nathália Favarin da Silva, Izabella Lazzeri Machado, Edson Luiz Foletto, Ederson Abaide et autres
Abstract This study investigates the valorization of hydrochar generated from the hydrothermal liquefaction of butia endocarp, an agro-industrial residue, as a precursor for activated carbon (AC) applied to the removal of the emerging contaminants paracetamol and 2,4-D from aqueous solutions. The hydrochar …
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Accès ouvert
2025
article
OpenAlex
Lorenzo da Silva Migliorin, Suliman Yousef Alomar, Yasmin Vieira, Glaydson S. dos Reis et autres
A key challenge in fixed-bed adsorption systems is balancing high contaminant removal with long-term stability and a mechanistic understanding at the molecular level. This work demonstrates that a hierarchical MFI-type zeolite (HMFI@Z), when used in a regenerative fixed-bed column, efficiently removes cyclohexane …
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Accès ouvert
2025
preprint
OpenAlex
Nathália Favarin da Silva, Izabella Lazzeri Machado, Edson Luiz Foletto, Ederson R. Abaide et autres
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2025
article
OpenAlex
Joyce Azevêdo Bezerra de Souza, Luana Rabelo Hollanda, Larissa Sobral Hilário, Raoni Batista dos Anjos et autres
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2025
article
OpenAlex
Pietro Serraglio Figueiredo, Sérgio Luiz Jahn, Tito Crissien Borrero, Luís F.O. Silva et autres
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