Characterization of dispersed titania nanosheet under aqueous conditions and its complex formation behavior with cationic porphyrin

被引:7
|
作者
Sano, Keito [1 ]
Sonotani, Amane [1 ]
Tatsumi, Daichi [1 ]
Ohtani, Yuta [2 ]
Shimada, Tetsuya [1 ,3 ]
Takagi, Shinsuke [1 ,3 ]
机构
[1] Tokyo Metropolitan Univ, Dept Appl Chem, Grad Course Urban Environm Sci, Minami Ohsawa 1-1, Hachioji, Tokyo 1920397, Japan
[2] Tokyo Univ Sci, Dept Engn, Grad Course Engn, Daigakudoori 1-1-1, Sanyo Onoda, Yamaguchi 7560884, Japan
[3] Ctr Artificial Photosynth, Minami Ohsawa 1-1, Hachioji, Tokyo 1920397, Japan
关键词
Inorganic/Organic complex; Porphyrin; Titania nanosheet; Size-matching effect; Cation exchange capacity; SIZE-MATCHING RULE; ENERGY-TRANSFER REACTION; ELECTRON-TRANSFER; CLAY SURFACE; ARTIFICIAL PHOTOSYNTHESIS; HYBRID PHOTOCATALYST; INORGANIC NANOSHEETS; Z-SCHEME; FILMS; ADSORPTION;
D O I
10.1016/j.jphotochem.2017.08.003
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Cation exchange capacity (CEC) of titania nanosheet (TNS) and the complex formation behavior with the cationic porphyrin were investigated. It is turned out that the CEC value of TNS is 1.5 x 10(-3) eq g(-1) according to a thermogravimetric analysis. The maximum adsorption ratio of the cationic porphyrin onto dispersed TNS surface was almost 100% versus CEC in aqueous conditions under the optimized concentration of the exfoliating reagent. This result indicates that cationic porphyrins adsorb densely without molecular aggregation. (C) 2017 Elsevier B.V. All rights reserved.
引用
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页码:597 / 601
页数:5
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