
The Matrix Assembly Cluster Source, a newly invented machine used to design a breakthrough water treatment method using a solvent-free approach.
Researchers from Swansea University have developed a new environmentally friendly method for removing toxic chemicals from water.
A newly invented machine, called the Matrix Assembly Cluster Source (MACS), has been used to design a breakthrough water treatment method using a solvent-free approach.
The research, from The Institute for Innovative Materials, Processing and Numerical Technologies (IMPACT) within the College of Engineering at Swansea University, was funded by the EPSRC and led by Professor Richard Palmer.
Professor Richard Palmer explains:
“The harmful organic molecules are destroyed by a powerful oxidising agent, ozone, which is boosted by a catalyst. Usually such catalysts are manufactured by chemical methods using solvents, which creates another problem – how to deal with the effluents from the manufacturing process?
The Swansea innovation is a newly invented machine that manufactures the catalyst by physical methods, involving no solvent, and therefore no effluent. The new technique is a step change in the approach to water treatment and other catalytic processes.”
Professor Palmer continues:
“Our new approach to making catalysts for water treatments uses a physical process which is a vacuum-based and solvent free method. The catalyst particles are clusters of silver atoms, made with the newly invented MACS machine.
It solves the longstanding problem of low cluster production rate – meaning, for the first time, it is now possible to produce enough clusters for study at the test tube level, with the potential to then scale up further to the level of small batch manufacturing and beyond.”
The clusters are approximately 10,000 times smaller than the width of a human hair and have been of significant interest to researchers because of their unique properties. However, due to the inadequate rate of cluster production, research in this area has been limited.
The new MACS method has changed this – it scales up the intensity of the cluster beam to produce enough grams of cluster powder for practical testing. The addition of ozone to the powder then destroys pollutant chemicals from water, in this case nitrophenol.
On the future potential of this breakthrough technology, Professor Palmer summarises:
“The MACS approach to the nanoscale design of functional materials opens up completely new horizons across a wide range of disciplines – from physics and chemistry to biology and engineering. Thus, it has the power to enable radical advances in advanced technology – catalysts, biosensors, materials for renewable energy generation and storage.
It seems highly appropriate that the first practical demonstration of Swansea’s environmentally friendly manufacturing process concerns something we are all concerned about – clean water!”
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