Industrial wastewater often contains harmful dyes, such as methylene blue, that pollute rivers and threaten ecosystems. Finding an effective and sustainable way to clean this wastewater has become a global challenge.
A new study has explored the potential of combining reduced Graphene Oxide (rGO) with Titanium Dioxide (TiO₂) to create powerful nanocomposites capable of removing contaminants. Using the hydrothermal method, researchers produced rGO/TiO₂ catalysts in different ratios and tested them against methylene blue under both dark conditions and UV light.
The results were striking. While rGO/TiO₂ showed some ability to adsorb dye in the dark, the real breakthrough happened under UV light irradiation. The photocatalytic process triggered a significant degradation of methylene blue, effectively breaking it down rather than just trapping it. Among the tested compositions, the nanocomposite with 60% rGO and 40% TiO₂ demonstrated the best performance.
This innovation highlights how nanotechnology can support cleaner industrial practices and protect water resources. By using smart photocatalysts, industries could potentially reduce dye pollution and move toward more sustainable wastewater treatment methods.
The research aligns strongly with the UN Sustainable Development Goals (SDGs):
- SDG 6: Clean Water and Sanitation – by contributing to safer wastewater treatment.
- SDG 12: Responsible Consumption and Production – by promoting sustainable solutions for industrial processes.
With further development, rGO/TiO₂ nanocomposites could play a key role in ensuring cleaner water for communities and a healthier environment for the future.
Source: https://www.scopus.com/record/display.url?eid=2-s2.0-85194355047&origin=resultslist
26/Fis/2025
