Recent and Emerging Trends in Remediation of Methylene Blue Dye from Wastewater by Using Zinc Oxide Nanoparticles

Due to the increased demand for clothes by the growing population, the dye-based sectors have seen fast growth in the recent decade. Among all the dyes, methylene blue dye is the most commonly used in textiles, resulting in dye effluent contamination. It is carcinogenic, which raises the stakes for the environment. The numerous sources of methylene blue dye and their effective treatment procedures are addressed in the current review. Even among nanoparticles, photocatalytic materials, such as TiO2, ZnO, and Fe3O4, have shown greater potential for photocatalytic methylene blue degradation. Such nano-sized metal oxides are the most ideal materials for the removal of water pollutants, as these materials are related to the qualities of flexibility, simplicity, efficiency, versatility, and high surface reactivity. The use of nanoparticles generated from waste materials to remediate methylene blue is highlighted in the present review.

Automated summary

The growing global population has led to increased demand for clothing, resulting in rapid growth in the dye-based sectors. Methylene blue dye, the most commonly used dye in textiles, is causing contamination of dye effluents, posing a carcinogenic risk to the environment. This review addresses the various sources of methylene blue dye and effective treatment procedures. Among nanoparticles, photocatalytic materials like TiO2, ZnO, and Fe3O4 show great potential for degrading methylene blue through photocatalysis. These nano-sized metal oxides are ideal for water pollutant removal due to their flexibility, simplicity, efficiency, versatility, and high surface reactivity. The review also highlights the importance of using nanoparticles generated from waste materials to remediate methylene blue.