Photoinduced electron transfer between semiconducting nanosheets and acceptor molecules in the presence of colloidal clay particles
Photoinduced electron transfer between semiconducting nanosheets and acceptor molecules in the presence of colloidal clay particles
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胶体粘土颗粒存在下半导体纳米片和受体分子之间的光致电子转移
DOI：
10.1016/j.clay.2016.03.007
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发表时间：
2016
影响因子：
5.6
通讯作者：
Emiko Mouri
中科院分区：
文献类型：
--
作者：
Teruyuki Nakato;Manami Shimizu;Hitomi Edakubo;Emiko Mouri
通过混合蒙皂石和其他颗粒制备的二元粘土胶体可以基于胶体颗粒之间的物理和化学相互作用而表现出不寻常的性质。我们制备了一个二元胶体系统的层状氟铌酸盐（K2NbO3F）和合成锂蒙脱石（Laponite）颗粒和研究光诱导电子转移的胶体中，电子接受甲基紫精（MV 2+）添加。未证实氟铌酸盐的剥离和纳米片形成，但其在水中转化为容易沉降的3D结晶物质。添加大量锂蒙脱石抑制了氟铌酸盐颗粒的沉降，从而使胶体稳定几天。当MV2 +离子被引入到二元胶体中时，有机物种被吸附在锂蒙脱石颗粒上，并且在UV照射下发生从氟铌酸盐颗粒到MV2 +离子的电子转移。在体系中加入丙铵离子可以提高光产物的产率和稳定性，但存在一个最佳加入量，这是由于丙铵离子对空穴的清除作用，尽管在没有丙铵离子的情况下也可以发生光诱导的电子转移。
Binary clay colloids prepared by mixing smectite and other particles can exhibit unusual properties based on physical and chemical interactions between the colloidal particles. We prepared a binary colloidal system of layered fluoroniobate (K2NbO3F) and synthetic hectorite (Laponite) particles and examined photoinduced electron transfer in the colloid to which electron accepting methylviologen (MV2 +) was added. Exfoliation and nanosheet formation of the fluoroniobate were not evidenced, but it was transformed in water to 3D crystalline species that was easily settled down. Addition of a large amount of hectorite suppressed the settlement of the fluoroniobate particles to stabilize the colloid for a few days. When MV2 +ions were introduced to the binary colloid, the organic species was adsorbed on the hectorite particles and electron transfer occurred from the fluoroniobate particles to the MV2 +ions upon UV irradiation. Addition of propylammonium ions to the system enhanced the yield and stability of the photoproduct while an optimal amount was found. This was ascribed to the scarifying hole scavenging by the propylammonium species although the photoinduced electron transfer can occur in its absence.
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一些新型还原铌酸盐化合物的合成及性能
DOI：
10.1016/0025-5408(90)90003-k
发表时间：
1990
期刊：
影响因子：
--
作者：
C. Michelson;P. Rauch;F. Disalvo
通讯作者：
F. Disalvo
影响因子：
3.3
作者：
Miyamoto, N;Nakato, T
通讯作者：
Nakato, T
通过混合铌酸盐和铝硅酸盐纳米片获得液晶胶体系统：使用探针染料的光谱研究
影响因子：
3.9
作者：
Nobuyoshi Miyamoto† and;T. Nakato
通讯作者：
T. Nakato
DOI：
10.1002/9780470294758.ch76
发表时间：
2001
期刊：
影响因子：
--
作者：
K. Toda;K. Uematsu;N. Ohtake;Saori Tokuoka;Mineo Sato
通讯作者：
Mineo Sato
DOI：
10.1039/c3cp54140a
发表时间：
2014-01
期刊：
Physical chemistry chemical physics : PCCP
影响因子：
--
作者：
T. Nakato;Yoshihiro Nono;E. Mouri;M. Nakata
通讯作者：
T. Nakato;Yoshihiro Nono;E. Mouri;M. Nakata