CeO2 nanocatalysts for the chemical recycling of polycarbonate

  title={CeO2 nanocatalysts for the chemical recycling of polycarbonate},
  author={Minori Taguchi and Yuki Ishikawa and Shiho Kataoka and Takashi Naka and Toshitaka Funazukuri},
  journal={Catalysis Communications},
Efficient Alcoholysis of Polycarbonate Catalyzed by Recyclable Lewis Acidic Ionic Liquids
In this contribution, an efficient and green protocol for alcoholysis of waste polycarbonate (PC) using Lewis acidic ionic liquids (ILs) was first developed under mild and solvent-free conditions.
Degradation of polycarbonate to produce bisphenol A catalyzed by imidazolium-based DESs under metal-and solvent-free conditions
Bisphenol A (BPA) is an important chemical raw material, but the traditional preparation process of BPA is costly and complicated, so it is necessary to find an efficient and environmentally friendly
Environmentally benign chemical recycling of polycarbonate wastes: comparison of micro- and nano-TiO2 solid support efficiencies
Abstract Polycarbonate (PC) wastes, including optical discs (CDs) and digital optical discs (DVDs), were chemically recycled into valuable materials such as 4,4′-(propane-2,2-diyl)diphenol (BPA) and
Depolymerization of poly(bisphenol A carbonate) under mild conditions by solvent-free alcoholysis catalyzed by 1,8-diazabicyclo[5.4.0]undec-7-ene as a recyclable organocatalyst: a route to chemical recycling of waste polycarbonate
DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) is an active catalyst of poly(bisphenol A carbonate) (PC) alcoholysis and promotes selectively and quantitatively the solvent-free (no auxiliary solvent used)
Preparation of Cerium Oxide Nanoparticles: An Efficient Catalyst to the Synthesis of Dimeric Disulphide Schiff Bases
Dimeric disulphide Schiff bases were synthesized via reactions of 2-aminophenyl disulphide with various aromatic aldehydes under reflux and prepared nano ‐ sized cerium oxide as catalyst. It observed
Chemical Recycling of Poly(bisphenol A carbonate) by Glycolysis under 1,8-Diazabicyclo[5.4.0]undec-7-ene Catalysis
The glycolysis reaction of poly(bisphenol A carbonate) (PC) has been explored under 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) catalysis as a potential route to valorize PC wastes by chemical


Synthesis of monocarboxylic acid-modified CeO2 nanoparticles using supercritical water
This study reports a simple, rapid synthesis technique for the preparation of monocarboxylic acid-modified CeO2 nanoparticles. The nanoparticle products were prepared under hydrothermal conditions
Supercritical hydrothermal synthesis of hydrophilic polymer-modified water-dispersible CeO2 nanoparticles
We have succeeded in the simple and rapid synthesis of the hydrophilic polymer-modified CeO2 nanoparticles using a supercritical hydrothermal method. To prepare the nanoparticles, Ce(OH)4 as
Steam Hydrolysis of Poly(bisphenol A carbonate) in a Fluidized Bed Reactor
Poly(bisphenol A carbonate) (PC) was hydrolyzed in a benchtop fluidized bed reactor and compared with the pyrolysis of PC. Hydrolysis resulted in bisphenol A (BPA) and the cleavage of BPA in the
Depolymerization of polycarbonate with catalyst in hot compressed water in fused silica capillary and autoclave reactors
Depolymerization of polycarbonate (PC) with the catalyst manganese acetate (Mn(Ac)2) was studied in hot compressed water (HCW) using a stainless steel batch autoclave reactor and a fused silica
Chemical recycling of polycarbonate in a semi-continuous lab-plant. A green route with methanol and methanol–water mixtures
Alkali-catalysed depolymerization of polycarbonate (PC) wastes by alcoholysis in supercritical or near critical conditions has been studied in order to recover the essential monomer bisphenol A (BPA)
Chemical recycling of polycarbonate in dilute aqueous ammonia solution under hydrothermal conditions
Polycarbonate (PC) pellets were subjected to dilute aqueous ammonia solution under hydrothermal conditions in a semi-batch reactor at temperatures ranging from 433 to 463 K and at a pressure of 10
Converting Ceria Polyhedral Nanoparticles into Single-Crystal Nanospheres
This work developed an approach for large-scale synthesis of single-crystal ceria nanospheres that can reduce the polishing defects by 80% and increase the silica removal rate by 50%, facilitating precise and reliable mass-manufacturing of chips for nanoelectronics.