Palladium supported on alginate/ionic liquid highly porous monoliths: Application to 4-nitroaniline hydrogenation

Hybrid macroporous Pd catalytic discs for 4-nitroaniline hydrogenation: Contribution of the alginate-tetraalkylphosphonium ionic liquid support

“…This simple test-reaction was used to compare the catalytic efficiency of the different supports using the optimized reaction conditions obtained in a previous study [15]. 25 mL of a solution of 4-NA (25 mg L À1 ) was prepared.…”

“…Alginate has also been used for the physical entrapment of ionic liquids (such as tetraalkylphosphonium), for the elaboration of a new generation of extractant impregnated resins with applications in the recovery of a series of chloro-metal anions in HCl solutions [14]. However, the high affinity of these systems for catalytic metal ions such as Pd(II) leaded to the development of Pd-IL-alginate catalysts [15,16].…”

Behaviour of RO90 membrane on the removal of 4-nitrophenol and 4-nitroaniline by low pressure reverse osmosis

“…Different techniques have been used for the removal of 4NP and 4NA from aqueous solutions. Among chemical methods highlights Fenton [4] and photo-Fenton oxidation [6,7], reduction [8,9] and photolysis treatments [10,11] with the main drawbacks of the high energy consuming and high costs. Degradation with bacteria presents the problem of keeping the activity of the organisms [12,13].…”

Study of Alginate-Supported Ionic Liquid and Pd Catalysts

“…In a previous work, new catalytic systems using alginate to immobilize ILs and palladium, in the form of highly porous monoliths (HPMs) were studied for the hydrogenation of 4-nitroaniline [24]. The present work focuses on the influence of the parameters of elaboration of the catalytic materials.…”