The adsorption of methylene blue on eco-friendly reduced graphene oxide

F Arias Arias, M Guevara, T Tene, P Angamarca… - Nanomaterials, 2020 - mdpi.com
Recently, green-prepared oxidized graphenes have attracted huge interest in water
purification and wastewater treatment. Herein, reduced graphene oxide (rGO) was prepared …

Toward large-scale production of oxidized graphene

T Tene, G Tubon Usca, M Guevara, R Molina, F Veltri… - Nanomaterials, 2020 - mdpi.com
The oxidative exfoliation of graphite is a promising approach to the large-scale production of
graphene. Conventional oxidation of graphite essentially facilitates the exfoliation process; …

Cationic pollutant removal from aqueous solution using reduced graphene oxide

T Tene, S Bellucci, M Guevara, E Viteri… - Nanomaterials, 2022 - mdpi.com
Reduced graphene oxide (rGO) is one of the most well-known graphene derivatives, which,
due to its outstanding physical and chemical properties as well as its oxygen content, has …

Drying-time study in graphene oxide

T Tene, M Guevara, A Valarezo, O Salguero… - Nanomaterials, 2021 - mdpi.com
Graphene oxide (GO) exhibits different properties from those found in free-standing
graphene, which mainly depend on the type of defects induced by the preparation method …

Dielectric screening versus geometry deformation in two-dimensional allotropes of silicon and germanium

A Sindona, C Vacacela Gomez, M Pisarra - Scientific Reports, 2022 - nature.com
The search for connections between electronic and structural features is a key factor in the
synthesis of artificial materials for on-demand applications, with graphene and analogous …

Massive and massless plasmons in germanene nanosheets

M Pisarra, CV Gomez, A Sindona - Scientific Reports, 2022 - nature.com
Atomically thin crystals may exhibit peculiar dispersive electronic states equivalent to free
charged particles of ultralight to ultraheavy masses. A rare coexistence of linear and …

Study on the Dye Removal from Aqueous Solutions by Graphene-Based Adsorbents

P Vassileva, V Tumbalev, D Kichukova, D Voykova… - Materials, 2023 - mdpi.com
In the current investigation, the removal efficiency regarding a cationic dye, methylene blue
(MB), from three graphene-based materials was investigated. The materials' characterization …

Calibration of fermi velocity to explore the plasmonic character of graphene nanoribbon arrays by a semi-analytical model

T Tene, M Guevara, E Viteri, A Maldonado, M Pisarra… - Nanomaterials, 2022 - mdpi.com
We present an analysis of the electronic and plasmonic behavior of periodic planar
distributions of sufficiently wide graphene nanoribbons, for which a thorough ab initio …

Proving surface plasmons in graphene nanoribbons organized as 2D periodic arrays and potential applications in biosensors

T Tene, M Guevara, J Svozilík, D Coello-Fiallos… - Chemosensors, 2022 - mdpi.com
Surface-plasmon-based biosensors have become excellent platforms for detecting
biomolecular interactions. While there are several methods to exciting surface plasmons, the …

Verification of experimental results with simulation on production of few-layer graphene by liquid-phase exfoliation utilizing sonication

SW Mushfiq, R Afzalzadeh - Scientific Reports, 2022 - nature.com
Graphene, an extraordinary tow-dimensional carbon nanostructure, has attracted global
attention due to its electronic, mechanical, and chemical properties; therefore, there is a …