Department of Applied Chemistry;
Tokyo Denki University;
Tokyo;
Japan;
Department of Industrial Chemistry;
Faculty of Engineering;
Tokyo University of Science;
Tokyo;
Japan;
Renewable Energy Research Center;
Department of Energy and Environment;
Advanced Industrial Science and Technology;
Koriyama;
Japan;
Department of Chemical Science and Engineering;
Tokyo Institute of Technology;
Tokyo;
Japan;
Degradation; Methylene; Blue; Degradation; KI; Oxidation; Frequency; Threshold; Power;