Hydrophobic Porous Liquids with Controlled Cavity Size and Physico-Chemical Properties.

ABSTRACT: Developing greener hydrometallurgical processes implies offering alternatives to conventional solvents used for liquid-liquid extraction (LLE) of metals. In this context, it is proposed to substitute the organic phase by a hydrophobic silica-based porous liquid (PL). Two different sulfonated hollow silica particles (HSPs) are modified with various polyethoxylated fatty amines (EthAs) forming a canopy that provides both the targeted hydrophobicity and liquefying properties. This study shows that these properties can be tuned by varying the number of ethylene oxide units in the EthA: middle-range molecular weight EthAs allow obtaining a liquid at room temperature, while too short or too long EthA leads to solid particles. Viscosity is also impacted by the density and size of the silica spher

SUBMITTER: Ginot L 

PROVIDER: S-EPMC10811500 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature