Formation of Natural Melanin/TiO2 Nanostructure Hybrids with Enhanced Optical, Thermal and Magnetic Properties as a Soft Material
Saja Algessair , Nawal Madkhali
Journal of Wuhan University of Technology Materials Science Edition ›› 2024, Vol. 39 ›› Issue (3) : 613 -620.
Formation of Natural Melanin/TiO2 Nanostructure Hybrids with Enhanced Optical, Thermal and Magnetic Properties as a Soft Material
The natural Melanin/TiO2 was synthesized by the use of ultrasonication under UV radiation. The influence of natural melanin on the structural, optical and thermal properties of TiO2 nanoparticles was investigated by using Fourier transform infrared spectroscopy, thermogravimetric analysis and UV-Vis spectroscopy. It was observed that incorporating natural melanin on TiO2 nanoparticles (TiO2-Mel) occurred at 2.01 eV with a low value of Urbach energy around 100 meV indicating improvement in the crystalline structure. Magnetic measurement at room temperature showed diamagnetic behavior. Furthermore, thermal results showed that TiO2-Mel is stable even at temperatures up to 400 °C. According to the results obtained by the thermal stability of melanin with titanium dioxide, it can be a good candidate in many applications such as solar cells and optoelectronics.
natural melanin/TiO2 / thermal stability / optoelectronic / nanostructure / UV radiation
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
Wang H, Liu Y, Li M, et al. Multifunctional TiO2 Nanowires-modified Nanoparticles Bilayer Film for 3D Dye-sensitized Solar Cells[J]. Optoelectronics and Advanced Materials-Rapid Communications, 2010(4): 1 166–1 169 |
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
Costa T, Younger R, Poe C, et al. Studies on Synthetic and Natural Melanin and Its Affinity for Fe (III) Ion[J]. Bioinorganic Chemistry and Applications, 2012: 2–9 |
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
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| 〈 |
|
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