| Autor: |
Kim, Hee Jung, Kim, Dae-Sung, Mun, Hyewon, Jae, Hyunmo, Moon, Kyoung-Seok, Roh, Dong Kyu |
| Zdroj: |
Composites Communications; December 2020, Vol. 22 Issue: 1 |
| Abstrakt: |
A dual-shell TiO2sphere, composed of a TiO2sphere (TS) core and SiO2layer (SL)/TiO2nanosheet (TNS) double shell, was prepared as a novel thermal-shield material. The high reflective rutile TiO2core was easily synthesized via a solvothermal reaction, and then SL/TNS double shell was sequentially coated on the TiO2core via two-step coating. This multilayer structure enhanced the solar reflectance via constructive interference between the high- and low-refractive index layers, suggesting a positive impact on potential applications as a thermal-shielding material. Moreover, the multi-faceted reflection derived from vertical growth TNS outer layer can lead to improvement in the solar reflectance caused by maximization of light scattering. As a result, it showed outstanding near infrared- and visible-reflectance value of approximately 87% and 91%, respectively, which are higher than those of neat TS and commercial TiO2. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full Text from ScienceDirect