Cited by 42Adsorption and biosorption for pollutant removalAdsorption, diffusion, and thermodynamic properties of materialsEnvironmental remediation with nanomaterials

Synthetic polymers blend used in the production of high activated carbon for pesticides removals from liquid phase

Belo, Cristóvão Ramiro, Cansado, Isabel Pestana da Paixão, Mourão, Paulo Alexandre Mira·2017·Environmental Technology

Abstract

For the activated carbon (AC) production, we used the most common industrial and consumer solid waste, namely polyethyleneterephthalate (PET), alone or blended with other synthetic polymer such polyacrylonitrile (PAN). By mixing PET, with PAN, an improvement in the yield of the AC production was found and the basic character and some textural and chemical properties were enhanced. The PET–PAN mixture was subjected to carbonisation, with a pyrolysis yield of 31.9%, between that obtained with PET (16.9%) or PAN (42.6%) separately. The AC revealed a high surface area (1400, 1230 and 1117 m2 g−1) and pore volume (0.46, 0.56 and 0.50 cm3 g−1), respectively, for PET, PAN and PET–PAN precursors. Selected ACs were successfully tested for 4-chloro-2-methylphenoxyacetic acid (MCPA) and diuron removal from the liquid phase, showing a higher adsorption capacity (1.7 and 1.2 mmol g−1, respectively, for MCPA and diuron) and good fits with the Langmuir (PET) and Freundlich equation (PAN and PET–PAN blend). With MCPA, the controlling factor to the adsorption capacity was the porous volume and the average pore size. Concerning diuron, the adsorption was controlled essentially by the external diffusion. A remarkable result is the use of different synthetic polymers wastes, as precursors for the production of carbon materials, with high potential application on the pesticides removals from the liquid phase.

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Crossref · 10.1080/09593330.2016.1190409

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  • Adding PAN to PET before carbonization at 800 °C under helium increases the yield of porous carbon and simultaneously enhances its chemical properties.

    “They found that the addition of PAN increased the yield of porous carbon and simultaneously enhanced its chemical properties [79] .”

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Authors
Belo, C. R., Cansado, I. P. D. P., & Mourão, P. A. M.
Affiliations
University of Évora (PT)
Corresponding author
Cansado, Isabel Pestana da Paixão
Venue
Environmental Technology
Published
2016-06-07
Volume
38
Issue
3
Pages
285-296
ISSN
  • 0959-3330 (ISSN-L)
  • 1479-487X
OpenAlex
W2407770884
Cited by
42
References
64
Citations by year
2026: 5 · 2025: 3 · 2024: 9 · 2023: 5 · 2022: 6 · 2021: 5 · 2020: 3 · 2019: 3 · 2018: 1 · 2017: 2
FWCI
1.18
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Technology (publishedVersion)
  • PubMed (publishedVersion)
  • Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion)
Funders
  • Fundação Calouste Gulbenkian (Doctoral Grant n° 126541)
  • Fundação para a Ciência e a Tecnologia (619)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Chemistry › Spectroscopy › Adsorption, diffusion, and thermodynamic properties of materials
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
Keywords
activated carbon, polyethylene terephthalate, polyacrylonitrile, polymer blends, carbonization, pyrolysis yield, adsorption, pesticide removal, MCPA, diuron, porous carbon, Langmuir isotherm, Freundlich isotherm, film diffusion
MeSH terms
Acrylic Resins, Adsorption, Carbon, Diuron, 2-Methyl-4-chlorophenoxyacetic Acid, Pesticides, Polyethylene Terephthalates, Waste Products, Water Pollutants, Chemical, Porosity, Water Purification

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