Abstract
A thermoanalytical investigation of chemically modified graphite and activated carbon is presented. Evaluation of thermal curves shows that radio-frequency oxygen plasma treatment is superior to electrochemical oxidation for increasing surface functional group concentrations, which when chemically reduced, can be used for cyanuric chloride binding. The amount of cyanuric chloride bound to the carbonaceous surface is determined by both potentiometric titration of hydrolyzed chloride and magnitude of weight loss at 275–290°C. The species evolved in this temperature range is identified by temperature-programmed mass spectrometry as cyanuric acid.
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