Development of cellulose saccharification catalyst and anticontamination of radioactive cesium by using ferromagnetic carbon nanotubes

2015 Fiscal Year Final Research Report

• Project/Area Number: 25620142
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Green/Environmental chemistry
• Research Institution: Shinshu University
• Principal Investigator: OHTA Kazuchika 信州大学, 学術研究院繊維学系, 教授 (70160497)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: カーボンナノチューブ / マイクロ波加熱 / 水中プラズマ / 糖化触媒 / 放射性セシウム回収

Outline of Final Research Achievements

We have successfully prepared ferromagnetic carbon nanotubes (CNT) containing nickel metal in gram scale from commercially available granulated polystyrene and nickel nanoparticles as the catalyst, by heating with a domestic microwave oven for about 10 min. We found that the bigger the diameter of nickel nanoparticles used in this “Ni nanoparticle method” becomes by 1 nm, the bigger the diameter of the resulted CNTs becomes by about 1 nm. The surface of the CNTs was added acidic points by using Plasma in Water Method or Chemical Acidification Method. The surface contains COOH and OH groups, so that these CNTs were homogeneously dispersed in water over two months. The acidified ferromagnetic CNTs can be applied to saccharification catalyst for woody biomass and collection of radioactive cesium.

Free Research Field

機能材料化学