Joint adsorption of benzene and water on carbon nanotubes

Behaviour of pure water and water mixture with benzene or chloroform adsorbed onto ordered mesoporous silicas

“…In general, the structurization of adsorbed mixtures with water/organics occurs in the confined space of pores to minimize Gibbs free energy of the system. Clearly, the structural characteristics of these mixtures depend on the structure and the chemistry of both adsorbates and adsorbents [21][22][23][24]. Additionally, the order of the loading of liquids (as well as other treatments of pore liquid mixtures) can affect this structurization because the molecular mobility of liquids in narrow pores is much lower than that in the bulk.…”

“…Nonpolar solvents (immiscible with water) displace pore water from narrow pores of carbon adsorbents more effectively than weakly polar or polar ones (soluble in bulk water). This is due to the different nature of forces giving the main contribution to interaction energy of polar and nonpolar molecules with polar, weakly polar and nonpolar surface sites and adsorbed water molecules forming clusters and droplets near polar sites in pores or at the entrances into the pores [21][22][23]. In the case of silica gel Si-40 with narrow mesopores (close in size to that of MCM-48 studied here) the effects of organics on pore water differ from that observed for activated carbons because of the difference in the structural and adsorption properties of the adsorbents [13,24].…”

“…The thermoporometry is used for characterizing pore structure from the melting or freezing point depression of a liquid confined in pores, by reason of the added contribution of surface curvature to the phase-transition free energy [20]. The effects of organic solvents on the behaviour of pore water adsorbed onto carbon adsorbents [21][22][23] and mesoporous silica gels [24] were studied by the 1 H NMR method. It was shown that this behaviour depends on molecular size, polarity, polarizability, electron-donor properties, concentration of organic solvents, as well as on the solubility of water in organics and vice versa.…”

Benzene layer-aligned electrochemical transformation of SWCNTs to redox-active macro-walled CNTs: enabling oxygen interference-free monitoring of ROS release from HeLa cancer cells

“…This modification results in approximately a ten-fold increase in the diameter (B100 nm) of the SWCNTs and introduces redox functionality, diverging from previous literature on BZ adsorption onto and unzipping of carbon nanotube (CNT) systems. 9,[25][26][27][28] Our research findings provides new insights into the behavior of SWCNTs interacting with BZ in an electrochemical context, offering distinct perspectives from conventional findings.…”