Prague
30.03.2015 - MOHAMED MOKHTAR HEFNY AND JUN.-PROF. DR. JAN BENEDIKT VISIT TO INSTITUTE OF PLASMA PHYSICS (IPP) IN CZECH REPUBLIC
PhD student Mohamed Mok
htar Hefny went to Prague from March 02, 2015 to March 20, 2015 with his supervisor Jun.-Prof. Dr. Jan Benedikt. He visited the group of Dr. Petr Lukes, Institute of Plasma Physics (IPP) in Czech Republic. This scientific mission was within the COST action "TD1208 Electrical discharges with liquids for future applications" and STSM Topic was "Chemical analysis of the reactive species produced in water treated by plasma produced radicals or VUV photons" and its Reference Number is "COST-STSM-ECOST-STSM-TD1208-020315-056481". They used the microscale atmospheric pressure plasma jet in treating water and analyzed the reactive species after treatment using ion and liquid chromatography and spectrophotometric. they used the micro-APPJ to generate a remote cold plasma at atmospheric pressure above the treated liquid in a He controlled atmosphere, they designed for that a small reactor with putting 3 ml of the prospective treated water inside it and making the plasma 4 mm above it. Treatment of water have done by many gas mixtures like He, He with O2 and He with N2 with and without water vapor. During the STSM they focused on the study of aqueous-phase chemistry of reactive oxygen species (ROS) and reactive nitrogen species (RNS) generated by plasma jet in the treated water. they made a lot of studies of H2O2, NO2-, NO3- synthesize in the treated water, they also studied the reaction pathways of phenol degradation induced by plasma in deionized water and used the phenol as a chemical probe.