Ethanolamine-isocyanate modified graphite oxide for selective solid-phase extraction of uranium

来源 :The 2nd China-Japan Academic Symposium on Nuclear Fuel Cycle | 被引量 : 0次 | 上传用户:jklgfdjligjregjmreji
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Graphite Oxide (GO) was prepared from purified natural graphite by the Hummers method [1].The new solid-phase extraction (SPE) adsorbent (ETA-iGO) was prepared by using tolylene-2,4-diisocyanate (TDI) and ethanolamine (ETA) to assemble the multidentate ligands in situ on the GO lamellar matrix through a two-step "grafting to" procedure [2,3].
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