New Method to Remove Antibiotic Residue from Waste Water
In February the article “Metal-doped organic aerogels for photocatalytic degradation of trimethoprim” written by the researchers of two research groups (nanoporous materials and environmental technology research groups) of Tallinn University of Technology was published in the high-impact peer-reviewed professional journal Chemical Engineering Journal.
The head of the nanoporous materials research group, Lead Research Scientist Mihkel Koel, has, as a chemist, focused his research in particular on the implementation of the principles of waste-free chemistry, i.e. green chemistry. Organic aerogels prepared from oil shale phenolic compounds.
Credit: Mihkel Koel
The article is focused in particular on organic aerogels produced from phenolic compounds obtained upon processing Estonian oil shale, i.e. from local raw material. In order to produce highly porous aerogel from gel, supercritical extraction with carbon dioxide is used, in the process of which liquid is replaced by gas resulting in aerogel – a very light and porous material.
It is crucial that this aerogel is produced from local raw material, i.e. Estonian oil shale phenolic compounds,” Koel says. Due to the specificity of the compounds obtained from Estonian raw material, the reaction takes place quickly and at room temperature (earlier the production of aerogel required heating at a temperature as high as 100°C for a longer period of time).
Mihkel Koel adds that the nanoporous materials research group studies also silica and cellulose aerogels and carbon aerogel produced at high temperature pyrolysis of organic aerogel (by heating up to 700-800 °C without air supply). When carbon aerogels are doped with metals, a material is produced that exhibits the best catalytic properties for electrolysis. In collaboration with the research group of a researcher from the Institute of Chemistry, University of Tartu, Kaido Tammeveski, a goal has been set for the future to use these catalysts in the development of low-temperature fuel cells.
Contacts and sources:
Mihkel KoelEstonian Research Council
Citation: Metal-doped organic aerogels for photocatalytic degradation of trimethoprim
http://dx.doi.org/10.1016/j.cej.2018.09.127
Source: http://www.ineffableisland.com/2019/02/new-method-to-remove-antibiotic-residue.html
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