PET as precursor of microporous carbons: preparation and characterization

Conversion of Poly(Ethylene Terephthalate) Waste into Activated Carbon: Chemical Activation and Characterization

“…Nowadays, plastic waste, namely poly(ethylene terephthalate) (PET), which is most commonly associated with plastic drink bottles, is one of the major problems of our society. Many research works have been performed in the last years in order to develop innovative technologies for the conversion of these excessive amounts of waste into new useful, value‐added products 1–9. Among the various recovery methods, the conversion of waste PET into carbonaceous porous adsorbents may be a notable way.…”

“…Among the various recovery methods, the conversion of waste PET into carbonaceous porous adsorbents may be a notable way. The high carbon content and low amounts of mineral matters and impurities in PET have made this residue a promising precursor for activated carbons (AC) 1, 3, 4, 8. Conversion of the available, low‐cost, and reproducible PET wastes into AC would eliminate the related environmental concerns; it would also reduce the total production costs of AC and promote their application to various industrial uses.…”

“…A review of the literature has shown that the focus of most studies is on the physical activation of PET with steam or CO 2 to produce AC 1, 3, 4, 10–15; however, in several works, PET activation with chemical agents such as NaOH 16, 17, KOH 17, 18, H 2 SO 4 19, 20, and HNO 3 21 was investigated. The use of chemical materials as activating agents, simultaneous carbonization and activation, heat treatment at lower temperatures compared to those of the physical method, and removal of extra chemicals from the sorbent pores during the washing steps are the most important characteristics of chemical activation 22–25.…”

Effect of some thermally unstable magnesium compounds on the yield of char formed from poly(ethylene terephthalate)

“…Therefore, much effort has been put to investigate methods to utilize it. One of the ways widely studied is converting PET to useful products such as activated carbon [1][2][3]. Preparation of porous carbon materials from PET usually employs carbonization and successive activation, carried out at 800-900°C.…”

Poly(ethylene terephthalate)-based carbons as electrode material in supercapacitors

“…Previous studies have suggested the production of activated carbons with suitable features to be used as adsorbents for processing PET-waste [9][10][11][12] This work presents the potentiality of PET as a low-cost precursor of microporous carbons with promising properties for electrodes in both aqueous (H 2 SO 4 ) and organic (tetraethyl ammonium tetrafluoroborate in acetonitrile) supercapacitors.…”