10.6084/m9.figshare.8191160.v2 Christian Chimeno-Trinchet Christian Chimeno-Trinchet Alfonso Fernández-González Alfonso Fernández-González Josefa Ángela García Calzón Josefa Ángela García Calzón Marta Elena Díaz-García Marta Elena Díaz-García Rosana Badía Laíño Rosana Badía Laíño Alkyl-capped copper oxide nanospheres and nanoprolates for sustainability: water treatment and improved lubricating performance Taylor & Francis Group 2019 CuO nanoparticles superficial functionalization oil medium tribological properties lubricant additive dye-remover additive 60 New topics / Others: Nanoparticles 301 Chemical syntheses / processing 500 Characterization 503 TEM, STEM, SEM 200 Applications 2019-06-26 07:44:05 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Alkyl-capped_copper_oxide_nanospheres_and_nanoprolates_for_sustainability_water_treatment_and_improved_lubricating_performance/8191160 <p>Metal oxide nanoparticles of different nature have been used in different fields such as therapeutics, biomarkers, tribology or environmental remediation, among others. Besides, the surface modification of such nanoparticles is of particular interest to bring designed functions. In this paper we describe the synthesis of CuO nanoparticles with two different geometries (spherical and prolate) and decorated with long alkyl chains in order to use as dye removers by adsorption and/or photo-degradation of a persistent model dye (Congo Red) and as lubricant additives to improve the tribological performance of base lubricant oils. Alkyl-functionalized CuO nanoparticles demonstrated a high stability in oily suspensions and an improvement in the friction reducing the CoF ca. 26%; the alkyl-decorated nanoparticles showed also higher adsorption kinetics for Congo Red than the neat ones following a pseudo-second-order trend, although with lower adsorption efficiency. The synthesis, surface modification and physic-chemical characterization of spherical and prolate CuO nanoparticles are described as well as their applications as lubricant additives and Congo Red photocatalytic removal.</p>