Synthesis and enhanced electron transfer of supramolecular nano-composite containing dendritic dye and surface-modified ZnO nano-rods
| Autor: | Hong-Cheu Lin, Ming Shiou Li, Atul Kumar Dwivedi, Chien Min Lin |
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| Rok vydání: | 2018 |
| Předmět: |
Steric effects
chemistry.chemical_classification Materials science Nano composites Process Chemistry and Technology General Chemical Engineering Supramolecular chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Electron transfer Pulmonary surfactant Chemical engineering chemistry Absorption band 0210 nano-technology Alkyl Nano rods |
| Zdroj: | Dyes and Pigments. 157:179-189 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2018.04.052 |
| Popis: | Supramolecular nano-composites 15T5N/ZnOx-PNH containing enhanced compatibilities of dendritic dye 15T5N and surface-modified nano-rod ZnOx-PNH were developed in this study. The physical properties of supramolecular nano-composites have been well investigated by theoretical calculation and various measurements, including UV–visible, PL, TEM, TCSPC, FT-IR, and CV. H-bonded nano-composite 15T5N/ZnO30-PNH possessed the saturated quenched fluorscence as dendritic dye 15T5N complexed with surface-modified nano-rod ZnO30-PNH. In contrast to nano-rod mixture 15T5N/ZnO (without surface-modification), more widened visible absorption band to promote more efficient photo-induced charge separation phenomenon was observed in supramolecular nano-composite 15T5N/ZnO30-PNH. Compared with surfactant T-PNH, less efficient electron transfer of surfactant T-PC6 was observed in TCSPC and PL measurements because of the steric hindrance of long alkyl chains (-C6H13) attached to surfactant T-PC6. Therefore, the triple H-bonds between dendritic dye 15T5N and surface-modified nano-rod ZnO30-PNH are verified to result in the desirable effective electron transfer in supramolecular nano-composite 15T5N/ZnO30-PNH. |
| Databáze: | OpenAIRE |
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