Titanate Nanotubes as New Nanostrutured Catalyst for Depolymerization of PET by Glycolysis Reaction
AUTOR(ES)
Lima, Gabrielle Ritter, Monteiro, Wesley Formentin, Ligabue, Rosane, Santana, Ruth Marlene Campomanes
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
06/11/2017
RESUMO
The final destination of PET packaging is creating economic and environmental concerns. One of the alternatives to minimize this problem would be making use of chemical recycling of this material through glycolysis with the aim to produce bis(hydroxiethyl) terephthalate, BHET monomer. This reaction is well known, but it still presents problems as BHET purity since it makes necessary the development of new catalysts highly selective. In this context, the present work studied the catalytic activity of a nanostructured material, titanate nanotubes (TNT), and compared it to a commercial catalyst (zinc acetate), which is the most used for this glycolysis reaction according to literature researches, and analyzed the influence of PET type (virgin and post-consumer) in the depolymerization for reaction times of 2, 3 and 4 hours. Using TNT as catalyst, BHET production yield and values of turnover number for the evaluated reaction times were higher than the results using Zn(OAc)2 for virgin PET, proving itself as a promising catalyst.
Documentos Relacionados
- Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction
- PET glycolysis optimization using ionic liquid [Bmin]ZnCl3 as catalyst and kinetic evaluation
- New Multicomponent Reaction for the Direct Synthesis of β-Aryl-γ-nitroesters Promoted by Hydrotalcite-Derived Mixed Oxides as Heterogeneous Catalyst
- Photoelectrodes with titanate nanotubes sensitized by mesoporphyrin derivative from cashew nut shell
- Hydrogen production from aqueous glycerol using titanate nanotubes decorated with Au nanoparticles as photocatalysts