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Microplastic Pollutant Degradation in Water Using Modified TiO<sub>2</sub> Photocatalyst Under UV-Irradiation

IOP Conference Series Materials Science and Engineering 2021 82 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Muhamad Haris Fadli, Muhamad Haris Fadli, Muhammad Ibadurrohman, Muhammad Ibadurrohman, Muhammad Ibadurrohman, Muhammad Ibadurrohman, Slamet Slamet Slamet Slamet Slamet Slamet, Slamet Slamet, Slamet Slamet Slamet Slamet, Slamet Slamet, Slamet Slamet

Summary

This study tested modified titanium dioxide (TiO2) photocatalysts for their ability to degrade microplastic pollutants in water using light-driven oxidation. Modified TiO2 showed improved photocatalytic activity against microplastics compared to unmodified TiO2, which suffers from limited efficiency under visible light.

Polymers

Abstract Modified TiO 2 photocatalyst has been widely studied on its ability to degrade pollutants in water. Nowadays, one of the water pollutants that significantly polluted water is microplastic. Photocatalyst TiO 2 can create an oxidizing agent to degrade microplastic pollutants but have a very high recombination rate of electrons and holes. By modifying TiO 2 with silver dopant using Photo-assisted Deposition (PAD) and Reduced Graphene oxide (RGO) using the ultrasonic radiation method, can highly increase the ability of TiO 2 catalyst. The modified catalyst was characterized by SEM-EDX and UV-Vis DRS to analyze the properties change of the composite. The performance of composites in degrading microplastic (polyethylene) was tested under UV radiation for 4 hours. The Ag/TiO 2 /RGO catalyst has a significantly high degradation percentage with 76% compared to pure TiO 2 and Ag/TiO 2 with degradation percentage of 56% and 68% respectively.

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