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 …

The liquid exfoliation of graphene in polar solvents

CV Gomez, M Guevara, T Tene, L Villamagua… - Applied Surface …, 2021 - Elsevier
Graphene is the most attractive 2D nanomaterial with interesting applications from smart
coating to high frequency electronics. Its production through liquid exfoliation of graphite in …

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 …

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 …

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 …

Dispersion of graphene in ethanol by sonication

M Cayambe, C Zambrano, T Tene, M Guevara… - Materials Today …, 2021 - Elsevier
Graphene is prepared from natural graphite flakes by solvent dispersion and short-
sonication time. In this study, we exfoliate few-layer graphene (FLG) directly in ethanol …

[PDF][PDF] Modeling plasmonics and electronics in semiconducting graphene nanostrips

T Tene, M Guevara, G Moreano… - Emerging Science …, 2023 - researchgate.net
In recent decades, both academia and industry have shown noteworthy interest in
investigating the semiconducting properties of graphene. Nevertheless, the lack of a suitable …