2013 Fiscal Year Final Research Report
Development of new energy technology using porous DLC nano-membranes
| Project/Area Number |
23350105
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
ICHINOSE Izumi 独立行政法人物質・材料研究機構, 高分子材料ユニット, ユニット長 (50243910)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | DLC / 分離材料 / ナノ濾過膜 |
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| Research Abstract |
High performance filtration membranes made of diamond-like carbon (DLC) were developed. DLC membranes obtained by plasma CVD or sputtering techniques showed superior properties as organic-solvent resistant nanofiltration membranes when proper porous alumina or polymeric substrates were used. Organic solvents quickly permeated through a DLC layer with pores less than 1 nm in diameter and the solvent flux increased inversely proportional to the viscosity of the solvents. The hydrophilicity of the nanopores increased when nitrogen atoms were introduced into the DLC layer. Furthermore, by the selection of proper polymeric substrates and controlling the deposition conditions, we could successfully fabricated nanopores no more than 0.8 nm in diameter, which can reject azobenzene perfectly and about 90% of sodium chloride.
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