Sustainable Decoloration Of Polluted Water Through Cellulosic Tio2 Nano- Crystalline Material Composite Using Sono Synthesis
Tayyab Naveed
The growth of industrialization has provoked the world’s environment through toxic pollutants. They have not only affected the water and air quality but also increased health and safety issues. Therefore, it has become a great challenge to humans to significantly eliminate or diminish the pollutant marks and rebuild the ecological atmosphere. Many research studies have provided suitable solutions through conventional and advanced oxidation processes (AOP) for contamination in groundwater and wastewater to address these deleterious issues. Amongst all these processes, the photocatalysis semiconductor method has been recognized as an efficient and cost-effective technique for wastewater purification. Semiconductors like bismuth oxybromide (BiOBr), tin oxide (SnO2), silver phosphate (Ag3PO4), and titanium dioxide (TiO2), potentially assisted in accelerating photocatalytic phenomenon (Zhao & Wu, 2018). Amongst them, TiO2 has been widely exploited due to its effectual photocatalytic degradation, low toxification, low cost, profusion, chemical, and thermal stability, corrosion resistance, and oxidative ability. Further, its limitations regarding charge electron separation efficiency, surface wettability, and n-type wider band gap (3.2 eV) have also been improved through many strategies like metallic (Ag, Au, Bi) and non-metallic (N2, P4) doping, structural optimization, dye sensitization, and defect engineering. Therefore, TiO2 nanoparticles were synthesized directly on the surface of cellulose powder (nano TiO2-cellulose) to evaluate the decoloration performance of wastewater treatment containing reactive dye. Because TiO2 can easily collect from cellulose for reuse, cellulose does not dissolve into TiO2, availability to resources, and easy to produce as well as eco-friendly.