Size effect of complexing microcapsules on copper ion extraction

Preparation and Characterization of Silicone Liquid Core/Polymer Shell Microcapsules via Internal Phase Separation

“…Several papers describe in different ways how to prepare microcapsules with aqueous cores . Commonly, the encapsulation of water‐soluble active components in microcapsules is achieved through the use of water‐in‐oil‐in‐water multiple emulsions.…”

Preparation of capsules containing 1-nonanol for rapidly removing high concentration phenol from aqueous solution

“…3(a) clearly shows the biconcave discshaped structure of the prepared capsules, which have an average diameter of 2-2.5 mm with sufficient rigidity. However, capsules containing extractant prepared by previous researchers are all spherical [19][20][21][22][23][24][25][26][27][28][29]. Compared to spherical capsules, the biconcave disc-shaped capsules present a larger contact surface between the extractant and the inner surface of the capsules, which benefits mass transfer performance.…”

“…Compared to conventional liquid-liquid extraction, there are several advantages with solvent capsules as separation agent, such as good stability, high selectivity, minimal use of organic solvents and easy phase separation [18]. However, most of the applications focus on the recovery of heavy metals and immobilization of ionic liquid [19][20][21][22][23][24][25][26][27][28][29].…”

Characterisation and applications of microcapsules obtained by interfacial polycondensation

“…In the vacuum sorption system, ultrapure nitrogen gas and liquid nitrogen gas were used as the adsorbate and coolant. The specific surface area was determined with the intrusion and extrusion curves by the multipoint Brunauer-Emmett-Teller (BET) (Laguecir et al, 2002b;Gao et al, 2009;Zhang et al, 2011a). The average pore diameter can be determined by the Barrett-Joyner-Halenda (BJH) method (Barrett et al, 1951).…”

“…Metallic particles have been widely studied as they present an interest both for fundamental physics and potential applications such as catalysis and magnetic recording (Richard-Plouet et al, 2002), which can be prepared by using complexing microcapsules obtained by interfacial polycondensation. Laguecir et al (2002bLaguecir et al ( , 2002a and Hidekazu et al (1995) studied the application in the extraction of metal ions. Given that polymeric microcapsules are porous, the wall is capable of physically absorbing some particles.…”