Faster, more durable water filters: Plugging up leaky graphene

7 mayo 2015

For faster, longer-lasting water filters, some scientists are looking to graphene –thin, strong sheets of carbon — to serve as ultrathin membranes, filtering out contaminants to quickly purify high volumes of water. Graphene’s unique properties make it a potentially ideal membrane for water filtration or desalination. But there’s been one main drawback to its wider use: Making membranes in one-atom-thick layers of graphene is a meticulous process that can tear the thin material — creating defects through which contaminants can leak. Now engineers have devised a process to repair these leaks.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sbIsiCKARZw/150507135921.htm

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