Carbon nanotubes production from real-world waste plastics and the pyrolysis behaviour

Yuan Zhu, Jie Miao, Yingrui Zhang, Chunchun Li, Yuanyuan Wang, Yi Cheng, Mingce Long*, Jiawei Wang*, Chunfei Wu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Downloads (Pure)


The investigation of the pyrolysis behaviour of real-world waste plastics (RWWP) and using them as the feedstock to produce carbon nanotubes (CNTs) could serve as an effective solution to address the global waste plastics catastrophe. This research aimed to characterize the pyrolysis behaviour of RWWP via thermogravimetric analysis (TG) and fast pyrolysis-TG/mass spectrometry (Py-TG/MS) analyses. Activation energies (131.04 kJ mol−1 –171.04 kJ mol−1) for RWWP pyrolysis were calculated by three methods: Flynn-Wall-Ozawa (FWO) method, Kissinger-Akahira-Sunose (KAS) method, and Starink method. Py-TG/MS results indicated that the RWWP could be identified as polystyrene (RWWP-1), polyethylene (RWWP-2), polyethylene terephthalate (RWWP-3, 4), and polypropylene (RWWP-5, 6). In addition, RWWP-1, 2, 5, 6 outperform RWWP-3 and 4 as sources of carbon for producing CNTs. The results showed a high carbon yield of 32.21 wt% and a high degree of CNT purity at 93.04%.

Original languageEnglish
Pages (from-to)141-151
Number of pages11
JournalWaste Management
Early online date10 May 2023
Publication statusPublished - 01 Jul 2023


Dive into the research topics of 'Carbon nanotubes production from real-world waste plastics and the pyrolysis behaviour'. Together they form a unique fingerprint.

Cite this