The decoloration of organic dyes by pen-like plasma torch

POSTER

Abstract

In this work, the decoloration of organic of dyes (sky blue) by pen-like plasma torch was investigated. The pen-like plasma touch was powered by 13.56 MHz RF. The center stainless steel tube was anode which surrounded by ceramic tube as insulator media. At the end of pen, one cathode was covered by the stainless steel electrode. The argon gas flown the tube was excited into plasma by RF field. Because Ar plasma torch activate the water into OH and O radicals, the dyes was reacted with these radicals and the color bonds were broken by these active species. The decoloration process has been investigated by different power, the volume of dyes solution and time. The decoloration is determined by measuring the absorption of the dye solution with a monocrometer. The percentage of decoloration = (the absorption before plasma treatment -- the absorption after plasma treatment) / (the absorption before plasma treatment -- the absorption of pure water). The experiments have shown that the decoloration is proportional to RF power and treatment time but inversely proportional to the volume of dye solution.

Authors

  • Ta-Lun Sung

    Lunghwa University of Science and Technology, Youngstown State University

  • Chung-Ming Liu

    Lunghwa University of Science and Technology

  • Kyung Yu

    University of Akron, Youngstown State University, Shady Side Academy, Westminster College, Nitronex Corporation, Durham, NC, AFRL,Wright-Patterson AFB, Ohio, University of Michigan, Ann Arbor, Department of Physics, The Ohio State University, Lunghwa University of Science and Technology, Eastern Michigan University, Wright State University, Michigan State University, Texas A\&M University and Princeton University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, Kettering University, Flint, MI, Pennsylvania State University, University of TN

  • Kyung Yu

    University of Akron, Youngstown State University, Shady Side Academy, Westminster College, Nitronex Corporation, Durham, NC, AFRL,Wright-Patterson AFB, Ohio, University of Michigan, Ann Arbor, Department of Physics, The Ohio State University, Lunghwa University of Science and Technology, Eastern Michigan University, Wright State University, Michigan State University, Texas A\&M University and Princeton University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, Kettering University, Flint, MI, Pennsylvania State University, University of TN