New paper published in the Journal of Industrial and Engineering Chemistry on TMAH recovery

New paper published in the Journal of Industrial and Engineering Chemistry. In cooperation with former group member Choonsoo Kim (now at Kongju University, Korea), we have used redox flow desalination for the valorization of tetramethylammonium hydroxide as a value-added organic compounds from wastewater which is widely being used as an etching solvent, photoresist developer, and surfactant
in semiconductor and display industries. By applying a low cell voltage (<1.2 V), a reversible redox
reaction allowed a continuous removal of TMAH from the wastewater stream and a simultaneous recovery for reuse as a form of tetramethylammonium cation. The TMAH removal rate was approximately
4.3 mM/g/h with a 40% recovery ratio.