Synthesis of Activated Carbon from Polyethylene Terephthalate (PET) Plastic Waste and Its Application for Removal of Organic Dyes from Water


  • Thu Hanh Thi Pham

    Institute of Chemistry and Materials, Nghia Do, Cau Giay, Hanoi, 10000, Vietnam



Synthetic plastics are often considered to be materials that cannot be broken down by natural processes. One such plastic, polyethylene terephthalate (PET), is commonly used in everyday items but when these products are discarded, they can cause serious harm to the environment and human health. In this study, PET plastic waste was used to create activated carbon using a physical activation process that involved using CO2 gas. The researchers investigated the effects of different temperatures, carbonization, and activation times on the resulting activated carbon’s surface area. The activated carbon was then analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), FTIR, and BET. The activated carbon created from PET plastic waste showed excellent absorption properties for methylene blue in aqueous solutions across a wide range of pH levels. By creating activated carbon from plastic waste, not only are environmental issues addressed, but high-value activated carbon is produced for environmental remediation purposes.


Plastic waste; Environmental treatment; Activated carbon; Waste utilization; Polyethylene terephthalate (PET)


[1] Qureshi, M.S., Oasmaa, A., Pihkola, H., et al., 2020. Pyrolysis of plastic waste: Opportunities and challenges. Journal of Analytical and Applied Pyrolysis. 152, 104804. DOI:

[2] Geyer, R., Jambeck, J.R., Lavender, K., 2017. Law production, use, and fate of all plastics ever made. Science Advances. 3, e1700782. DOI:

[3] d’Ambrières, W., 2019. Plastics recycling worldwide: Current overview and desirable changes. Field Actions Science Reports. The Journal of Field Actions. Special Issue 19, 12-21.

[4] Qiao, W.M., Yoon, S.H., Korai, Y., et al., 2004. Preparation of activated carbon fibers from polyvinyl chloride. Carbon. 42(7), 1327-1331. DOI:

[5] Bóta, A., László, K., Nagy, L.G., et al., 1997. Comparative study of active carbons from different precursors. Langmuir. 13(24), 6502-6509. DOI:

[6] Almazán-Almazán, M.C., Pérez-Mendoza, M., Domingo-García, M., et al., 2010. The influence of the process conditions on the characteristics of activated carbons obtained from PET de-polymerisation. Fuel Processing Technology. 91(2), 236-242. DOI:

[7] Esfandiari, A., Kaghazchi, T., Soleimani, M., 2012. Preparation and evaluation of activated carbons obtained by physical activation of polyethyleneterephthalate (PET) wastes. Journal of the Taiwan Institute of Chemical Engineers. 43(4), 631-637. DOI:

[8] Parra, J.B., Ania, C.O., Arenillas, A., et al., 2002. Textural characterisation of activated carbons obtained from poly (ethylene terephthalate) by carbon dioxide activation. Studies in Surface Science and Catalysis. 144, 537-543. DOI:

[9] Bazargan, A., Hui, C.W., McKay, G., 2015. Porous carbons from plastic waste. Porous carbons—hyperbranched polymers—polymer solvation. Springer: Berlin. pp. 1-25. DOI:

[10] Almazan-Almazan, M.C., Paredes, J.I., Perez-Mendoza, M., et al., 2006. Surface characteristics of activated carbons obtained by pyrolysis of plasma pretreated PET. The Journal of Physical Chemistry B. 110(23), 11327-11333. DOI:

[11] Cho, M.H., Jung, S.H., Kim, J.S., 2010. Pyrolysis of mixed plastic wastes for the recovery of benzene, toluene, and xylene (BTX) aromatics in a fluidized bed and chlorine removal by applying various additives. Energy Fuels. 24(2), 1389-1395. DOI:

[12] Zhou, J., Luo, A., Zhao, Y., 2018. Preparation and characterisation of activated carbon from waste tea by physical activation using steam. Journal of the Air & Waste Management Association. 68(12), 1269-1277. DOI:

[13] Zhang, Z.A., Cui, M., Lai, Y.Q., et al., 2009. Preparation and electrochemical characterization of activated carbons by chemical-physical activation. Journal of Central South University of Technology. 16(1), 91-95. DOI:

[14] Cuerda-Correa, E.M., Alexandre-Franco, M.F., Fernßndez-Gonzßlez, C., et al., 2016. Preparation of high-quality activated carbon from polyethyleneterephthalate (PET) bottle waste. Its use in the removal of pollutants in aqueous solution.Journal of Environmental Management. 181, 522-535. DOI:

[15] Ali, E., Tahereh, K., Mansooreh, S., 2011. Preparation of high surface area activated carbon from polyethylene terephthalate (PET) waste by physical activation. Research Journal of Chemistry and Environment. 15, 433-437.

[16] Sanal, A., Bernama, A., Haris, F., et al., 2017. Preparation of activated carbon from waste plastics polyethylene terephthalate as adsorbent in natural gas storage. IOP Conference Series: Materials Science and Engineering. 176(1), 012055. DOI:

[17] Domingo-García, M., Fernández, J.A., Almazán-Almazán, M.C., et al., 2010. Poly (ethylene terephthalate)-based carbons as electrode material in supercapacitors. Journal of Power Sources. 195(12), 3810-3813. DOI:

[18] Bratek, W., Świątkowski, A., Pakuła, M., et al., 2013. Characteristics of activated carbon prepared from waste PET by carbon dioxide activation. Journal of Analytical and Applied Pyrolysis. 100, 192-198. DOI:

[19] Mai Thanh Phong, M.X.K., Tuấn, P.A., 2020. Than hoạt tính và ứng dụng (Vietnamese) [Activated carbon and its applications]. NXB Khoa học kĩ thuật: Vietnam. Available from:


How to Cite

Pham, T. H. T. (2023). Synthesis of Activated Carbon from Polyethylene Terephthalate (PET) Plastic Waste and Its Application for Removal of Organic Dyes from Water. Non-Metallic Material Science, 5(1), 27–37.


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