Production of metal ion separation membrane using graphene oxide

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K21237
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties; Functional solid state chemistry
• Research Institution: National Institute of Advanced Industrial Science and Technology (2017); Kumamoto University (2016)
• Principal Investigator: Hatakeyama Kazuto 国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究員 (30773965)
• Research Collaborator: Hirose Kyosuke 熊本大学, 学生 ; Matsumoto Yasumichi 熊本大学, 理事 ; Koinuma Michio 熊本大学, 准教授 ; Taniguchi Takaaki 物質材料研究機構, 主任研究員
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 酸化グラフェン / イオン分離膜

Outline of Final Research Achievements

Graphene oxide (GO) produced from natural graphite shows excellent mechanical, gas barrier, proton conducting properties. Because of these properties, GO is expected to be introduced into wild field. In this study, we try to produce a metal ion separation membrane using a GO freestanding membrane. As a result, we have successfully tuned the copper ion permeation rate through GO freestanding membrane and found that the layer distance is the key factor that determines ion permeation. Moreover, we achieved to separate lead ion from lead and copper ion mixed solution. The separation mechanism was also explained by layer distance. These results are an important step in the study of the ion permeation properties of GO membranes.

Free Research Field

ナノ材料