[18p-A32-1~19] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[18p-A32-13] Investigation of Carbon Sulfonation Mechanism by Plasmas in Contact with Liquid

〇(DC)SIQI DENG¹, Kaixun Yao¹, Manabu Kodama¹, Katsuyuki Takahashi², Kosuke Tachibana³, Junko Hieda⁴, Oi Lun Li⁵, Nozomi Takeuchi¹ (1.Tokyo tech, 2.Iwate Univ., 3.Oita Univ., 4.Nagoya Univ., 5.Pusan National Univ.)

Keywords:

plasma sulfonation,carbon treatment,Atmospheric-pressure plasma

Plasma technology, a green technique that could oxidize organic pollutants and make materials hydrophilic, is a promising technique in several applications. In our previous study, we used plasma-liquid interactions to sulfonate carbon materials. Sulfonated carbon material as a promising catalyst in the biomass transformation process, needs strict conditions to produce over the past decade. By plasma discharge, the sulfonated carbon could be produced by dilute sulfuric acid. In this study, two kinds of carbon materials are used, and it shows different sulfonation results in each kind of material. In the case of GNPs (graphene nanoplatelets), it is difficult to add sulfonic groups on the carbon surface. On the contrary, in the case of CNTs (carbon nanotubes), the plasma technique could easily sulfonate it. The catalytic performance of these two kinds of treated carbon materials is investigated.