Water Treatment Advances with Environmentally Friendly Technologies

Water Purification Advances with Environment-Friendly New Technology Efficient wastewater treatment processes using the Vortex Fluidic Device have now made possible the development of clean and environmentally friendly coating materials. The exceptional Vortex Fluidic Device (VFD), invented by Professor Colin Raston from Flinders University, continues to demonstrate unexpected innovations through its adaptability and wider clean chemistry applications. This time, the VFD was used to demonstrate water purification potential through real-time detection of contaminants. Since 2013, Professor Raston and his team have been working to explore the applications of the VFD, which examines self-organizing systems capable of controlling chemical reactivity and material processing, enabling rapid and predictable modifications. The VFD has demonstrated its capacity in the synthesis of esters, amides, ureas, imines, alpha-amino phosphates, beta-keto esters, modified amino acids and the local anesthetic lidocaine. Dr. Xuan Luo from Flinders University's Faculty of Science and Engineering is leading research into preparing composite materials and their use as coatings for dye degradation and wastewater treatment.   Dr. Luo states, "The VFD allows the material to be coated as a single layer while also remaining in separate bands for multi-stage reactions. This setup applies to multiple synthetic dyes, and we observed a significant increase in degradation efficiency when using the VFD." Current research focuses on more effective and robust coatings to be prepared on a flexible membrane that can be rolled, inserted into the VFD, then removed post-reaction, rinsed and stored again. Dr. Luo explained, "The applications are not limited to water purification alone; they also hold significant potential in health-related fields such as diagnostics." The research titled "Magnetite Nanoparticle/Copper Phosphate Nanoflower Composites for Fenton-like Organic Dye Degradation" was published in ACS Applied Nano Materials. The tested technique provided a rapid and sustainable approach utilizing three different VFD applications for material production, reactor coating and material "banding." Materials were magnetically held to the surface of the VFD's rapidly rotating tube, increasing catalytic activity in degrading four different organic dyes under real-time monitoring, with a minimum five-fold increase in degradation efficiency compared to batch processing. To further enhance platform performance, the VFD tube reactor was chemically modified to include a thin silica-activated carbon xerogel coating layer that operates in harmony with the composite nanoflowers. This coated tube is highly stable, reusable and increases degradation efficiency by approximately 30-fold compared to batch processing. Integration of an ultraviolet-visible spectroscopy-based test strip enables real-time monitoring of the reaction and provides a direct tool for assessing the coating layer post-reaction. This work enables rational design of hybrid materials and the use of a modified VFD tube reactor for efficient real-time degradation of organic dyes. Professor Colin Raston added that rapid and environmentally friendly material production, when combined with significantly improved processing efficiency, proves highly effective in the water purification field from fundamental research through to applied industry. Raston concluded, "The research will open doors to detection applications that will play an important role in other fields such as membrane and coating technologies."   Source More information: Xuan Luo et al, Magnetite Nanoparticle/Copper Phosphate Nanoflower Composites for Fenton-like Organic Dye Degradation, ACS Applied Nano Materials (2022). DOI: 10.1021/acsanm.2c00037 Provided by Flinders University / https://phys.org/news/2022-10-purification-green-tech.html