“Size-matching Effect” in a Cationic Porphyrin–Titania Nanosheet Complex

“Size-matching Effect” in a Cationic Porphyrin–Titania Nanosheet Complex
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阳离子卟啉-二氧化钛纳米片复合物中的“尺寸匹配效应”

DOI:
10.1246/cl.161146
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发表时间:
2017
期刊:
影响因子:
1.6
通讯作者:
S. Takagi
S. Takagi
中科院分区:
化学4区
文献类型:
--
作者:
Amane Sonotani;T. Shimada;S. Takagi

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设计并合成了组成为Ti0.89O2的锂镁石型二氧化钛纳米片(TNSS)。用Langmuir-Blodgett方法在玻璃衬底上制备了致密堆积TNS表面(TNS-LB)。研究了阳离子卟啉(p-TMPyP4+)染料在TNS悬浮液(TNS-SUS)和TNS-LB上的吸附行为。在TNS-LB/p-TMPyP4+络合物中观察到高密度的p-TMPyP4+没有聚集的组装结构。平均分子间距离为2.3 nm。这是第一个表明尺寸匹配效应对半导体纳米片有效的例子。
Lepidocrocite-type titania nanosheets (TNSs) with composition Ti0.89O2 were newly designed and synthesized. The densely packed TNS surface on glass substrates (TNS-LB) was fabricated by the Langmuir–Blodgett method. The adsorption behavior of a cationic porphyrin (p-TMPyP4+) dye onto TNS suspension (TNS-SUS) and TNS-LB was examined. High density without an aggregation assembly structure of p-TMPyP4+ was observed in the TNS-LB/p-TMPyP4+ complex. The average intermolecular distance is 2.3 nm. This is the first example indicating that the size-matching effect is effective for semiconductor nanosheets.
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