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“ON–OFF” switching of europium complex luminescence coupled with a ligand redox process
Yano, Masafumi,Matsuhira, Keisuke,Tatsumi, Masakazu,Kashiwagi, Yukiyasu,Nakamoto, Masami,Oyama, Munetaka,Ohkubo, Kei,Fukuzumi, Shunich,Misaki, Hitomi,Tsukube, Hiroshi The Royal Society of Chemistry 2012 Chemical communications Vol.48 No.34
<P>A triarylamine-functionalized terpyridine ligand formed a highly coordinated complex with europium tris(β-diketonate), which displayed reversible ‘‘ON–OFF’’ luminescence switching coupled with a ligand redox process of triarylamine/triarylaminium cations.</P> <P>Graphic Abstract</P><P>A triarylamine-functionalized terpyridine ligand formed a highly coordinated complex with europium tris(β-diketonate), which displayed reversible ‘‘ON–OFF’’ luminescence switching coupled with a ligand redox process of triarylamine/triarylaminium cations. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2cc31078c'> </P>
Behavior of Steel Slag used as Sand Alternative in the Marine Environment
( Tetsuji Okuda ),( Satoshi Asaoka ),( Hitomi Yano ),( Satoshi Nakai ),( Wataru Nishijima ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 3RINCs초록집 Vol.2015 No.-
Tidal flats and seagrass beds were decreased in Japan by landfilling and others. So in recent years, coast regeneration projects have been progressed in order to recover tidal flats and seagrass beds. A sand-alternative material for creation of land is needed which could have safety, environmental friendly and stable supply, then steel slag meets these requirements. However, steel slag normally doesn't have silt faction and solidification is happen by the elution of Ca and Fe from slag in sea water. In our previous butch experiment, dredged soils obtained from sea sediment has a possibility to supply silt fraction and reduce the solidification. In this paper, we reviled the solidification behavior of steel slag in seawater during 10 months, and the effect of the addition of dredged soil to steel slag and there mechanism. The slag were bonded to each other with iron oxide, and shear stress was 3 times increased in slag only. The addition of dredged soil decrease the shear stress, and also interfere the solidification of slag. ORP or/and embrittlement effect as impurities by the components in dredge soil were the reason of these inhibition of the formation of the bridge between slags by the dredge soil.