Artículo
Plasma-Assisted Deposition of TiO2 3D Nanomembranes: Selective Wetting, Superomniphobicity, and Self-Cleaning
Autor/es | Montes, Laura
Román, José M. García Casas, Xabier Castillo Seoane, Javier Sánchez Valencia, Juan Ramón Barranco Quero, Ángel López Santos, Carmen Borrás Martos, Ana Isabel |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2021 |
Fecha de depósito | 2022-10-13 |
Publicado en |
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Resumen | Fabrication of tunable wetting surfaces is sought for the last years given its importance on energy, biomaterials and antimicrobials, water purification, microfluidics, and smart surfaces. Liquid management on surfaces ... Fabrication of tunable wetting surfaces is sought for the last years given its importance on energy, biomaterials and antimicrobials, water purification, microfluidics, and smart surfaces. Liquid management on surfaces mainly depends on the control at the micro- and nanoscale of both roughness and chemical composition. Herein, the combination of a soft-template method and plasma-enhanced chemical vapor deposition is presented for the synthesis of TiO2 nanofibers on porous substrates such as cellulose and stainless-steel membranes. The protocol, carried out under mild conditions, produces 3D nanomembranes with superhydrophobicity and oleophilicity that are tested as microliter water/oil filters. Photoactivation of TiO2 by UV illumination provides a straightforward approach for wetting tunability that converts the surface into amphiphilic. A final chemical modification of the TiO2 nanofibers by embedding them in an elastomeric polymeric shell and by fluorine-based grafting opens the path toward the formation of superomniphobic and self-cleaning surfaces with long-lasting lifetimes. Thus, a reliable procedure is demonstrated for the fabrication of TiO2 nanofibers, which allows the modification of porous supports and provides an innovative route for the development of 3D nanomembranes with under design wetting. This protocol is extendable to alternative metal oxides, metals, and core@shell nanoarchitectures with potential multifunctionalities. |
Agencias financiadoras | Agencia Estatal de Investigación. España Junta de Andalucía |
Identificador del proyecto | ID2019-110430GB-C21
PID2019- 109603RA-I PAIDI-2020 US-126314 AT17-607 P18-RT-348 |
Cita | Montes, L., Román, J.M., García Casas, X., Castillo Seoane, J., Sánchez Valencia, J.R., Barranco Quero, Á.,...,Borrás Martos, A.I.(2021). Plasma-Assisted Deposition of TiO2 3D Nanomembranes: Selective Wetting, Superomniphobicity, and Self-Cleaning. Advanced Materials Interfaces, 8 (21), 2100767. https://doi.org/10.1002/admi.202100767. |
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