Department of Materials Science, Indian Association for the Cultivation of Science , Kolkata-700 032, India.
ACS Appl Mater Interfaces. 2014 Jan 8;6(1):130-6. doi: 10.1021/am403518d. Epub 2013 Dec 23.
In this report, we have demonstrated the synthesis of surfactant-assisted different morphologies of meso-tetra(4-carboxyphenyl)porphyrin assemblies (spherical to flower shaped). These nano/micro assemblies are well characterized by scanning electron microscopy and X-ray diffraction. The formation of assemblies is driven by noncovalent interactions such as hydrophobic-hydrophobic and aromatic π-π stacking between the molecules. The steady state and time-resolved spectroscopic investigation reveal that different assemblies are formed by virtue of special supramolecular organizations. The photocatalytic activities of different assemblies have been demonstrated with an organic pollutant Rhodamine B dye under the visible light irradiation. Such porphyrin based assemblies could pave the way for designing new optical based materials for the applications in photocatalytic, photovoltaic, and light harvesting system.
在本报告中，我们展示了表面活性剂辅助的介孔四（4-羧基苯基）卟啉组装体（球形到花形）的不同形态的合成。这些纳米/微米组装体通过扫描电子显微镜和 X 射线衍射得到了很好的表征。组装体的形成是由分子之间的非共价相互作用（如疏水性-疏水性和芳族π-π堆积）驱动的。稳态和时间分辨光谱研究表明，不同的组装体是通过特殊的超分子组织形成的。不同组装体的光催化活性已在可见光照下用有机污染物罗丹明 B 染料进行了证明。基于卟啉的这些组装体为设计用于光催化、光伏和光收集系统的新型基于光学的材料铺平了道路。
