[7p-PA6-1~8] 8.7 Plasma phenomena, emerging area of plasmas and their new applications

[7p-PA6-8] Synthesis of Au-nanoparticle-embedded cross-linked gelatin films on an aqueous solution in contact with dielectric barrier discharge

〇Tatsuru Shirafuji¹, Yusuke Nakamura¹, Shiori Azuma¹, Toshiyuki Isshiki² (1.Osaka City Univ., 2.Kyoto Inst. Technol.)

Keywords:plasma on liquid, thin film, nanoparticles

We have generated DBD of Ar gas on HAuCl₄ aqueous solution for synthesizing Au nanoparticles. If we add gelatin to HAuCl₄ aqueous solution, we obtain a wine-red colored membrane on the aqueous solution by the DBD. The membrane has fibrous structure composed of polymerized gelatin, which has been confirmed through optical microscope observation and FTIR absorption spectroscopy of the membrane. In addition, we have confirmed that dispersed Au nanoparticles are incorporated in the membrane, which has been confirmed through EDX of the membrane and TEM observation of the edge of the membrane. Au nanoparticles in the membrane are dense and have fairly uniform size distribution depending on the position in the membrane.