EFFECTS OF CLAY-WATER INTERFACE ON THE PHOTOINDUCED ELECTRON TRANSFER FROM RUTHENIUM-BIPYRIDYL COMPLEX TO METHYLVIOLOGEN

スポンサーリンク

概要

• 論文の詳細を見る

• Photoinduced electron transfer (PET) was investigated in multicomponent aqueous suspensions composed of tris(2,2'-bipyridine)ruthenium(II) (Ru(bpy)_3^<2+>, photocatalyst), methylviologen (1,1'-dimethyl-4,4'-bipyridinium dication, MV^<2+>, electron acceptor), and ethylenediaminetetraacetate (EDTA, sacrificial electron donor) together with particles of smectite-type clays, where Ru(bpy)_3^<2+> and MV^<2+> are present in excess compared with CEC of the clay minerals. Clays with different particle sizes - fluorohectorite (FH) and montmorillonite (Mont) with large particle sizes (>0.1μm), and hectorite (Hect) and saponite (Sapo) with small particle sizes (〜30nm) - were examined, and the PET reaction proceeded in all of the suspensions to yield methylviologen radical cation (MV^<+・>) as the product. However, the difference in the clay particle size gave different product distribution; the large-size clays dominantly gave MV^<+・> dimers whereas the small-size clays mainly produced MV^<+・> monomers similarly to a homogeneous aqueous solution. Also, the large-size clays more stabilized the MV^<+・> species than the small-size ones. These results evidenced contribution of the clay-water interfaces to the reaction.

• 2013-06-00

著者

• Watanabe Shoko

  Graduate School Of Arts And Sciences The University Of Tokyo

• Mouri Emiko

  Department Of Applied Chemistry Faculty Of Engineering Kyushu Institute Of Technology

• Nakato Teruyuki

  Department Of Applied Chemistry School Of Science And Engineering Waseda University:(current Address

• NAKATO TERUYUKI

  Department of Applied Chemistry, Kyushu Institute of Technology

• WATANABE SHOKO

  Graduate School of Bio-Applications and Systems Engineering(BASE), Tokyo University of Agriculture and Technology

• FUJITA TAKAKO

  Graduate School of Bio-Applications and Systems Engineering(BASE), Tokyo University of Agriculture and Technology

関連論文

• AFM OBSERVATION OF KAOLINITE SURFACE USING "PRESSED"POWDER
• Controlled Crystallization of Ultrafine Titanium Dioxide Particles in the Presence of Hydrophilic or Amphiphilic Polymer from Peroxotitanic Acid
• SYNTHESIS OF HEPTYLVIOLOGEN-MONTMORILLONITE-POLYMER INTERCALATION COMPOUNDS AND THEIR ELECTROCHEMICAL BEHAVIOR
• Fabrication of Nano-structure by Diels-Alder Reaction
• EFFECTS OF CLAY-WATER INTERFACE ON THE PHOTOINDUCED ELECTRON TRANSFER FROM RUTHENIUM-BIPYRIDYL COMPLEX TO METHYLVIOLOGEN
• Bibliography of Maghreb Studies in Japan

スポンサーリンク