Effect of advanced oxidation process for chemical structure changes of polyethylene microplastics

Devita Amelia, Eva Fathul karamah, Melbi Mahardika, Edi Syafri, Sanjay Mavinkere rangappa, Suchart Siengchin, Mochammad Asrofi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

33 Citations (Scopus)

Abstract

Microplastic pollution in the aquatic systems is attracting continued concern globally. Microplastics can be needed a long degradation time due to the structural complexity and hydrophobicity. The advanced oxidation process (AOPs) can generate reactive oxygen such as hydroxyl (OH) radicals. These radicals initiate the plastic degradation process by changes in chemical structure with formed functional groups such as hydroxyl (O-H) and carbonyl (C=O) groups and modified C-H groups. The changes in chemical structure are the alternative to accelerate the degradation of microplastics. In this paper, polyethylene (PE) microplastics were modified the chemical structure by AOPs using the combination of ozonation and hydrogen peroxide (H2O2). The effect of the AOPs in samples of PE microplastics was characterized using Fourier Transform Infrared (FTIR) analysis. The results show increasing the intensity of the O-H and C=O bands and decreasing the intensity of C-H groups. The highest carbonyl index (CI) value was 1.33 at pH 12 with a flow rate of 3 L/min using the combination of ozonation and hydrogen peroxide method.
Original languageEnglish
Title of host publication2021 Research, Invention, and Innovation Congress: Materials Science
Pages2501-2504
Volume52
DOIs
Publication statusPublished - 1 Jan 2022

Keywords

  • Advanced oxidation process
  • Chemical structure
  • Hydrogen peroxide
  • Hydroxyl radicals
  • Polyethylene Microplastics
  • Ozonation

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