TY - JOUR
AU1 - Xu, Wenhao
AU2 - Bai, Gongxun
AU3 - Zhang, Hongbin
AU4 - Li, Denghao
AU5 - Xu, Shiqing
AB - Radiative cooling pigments offer new opportunities for sustainable carbon neutrality as zero‐energy and zero‐pollution functional materials. However, it is a challenge to prepare inorganic yellow pigments simultaneously with environmentally friendly, high color value, and weather resistance. In this study, a series of alkali metal‐doped γ‐Sm2S3 yellow pigments with near‐infrared reflectance were synthesized. The doping of alkali metal ions reduced synthesis temperature of Sm2S3 from 1300°C to 1000°C. The change in energy band structure induced by alkali metal doping allows the products to exhibit modifiable colors. Typical γ‐[Na]‐Sm2S3 pigment powders have a high near‐infrared reflectance and impressive colors (b* = 78.6, C* = 77.6). Furthermore, colored films made by prepared yellow powders with polyvinylidene fluoride in certain ratios had high near‐infrared reflectance and excellent environmental weathering, resulting in an effective cooling of 4–8°C in outdoor experiments. This work expands the range of options for energy‐efficient building and yellow colorant.
TI - Yellow rare earth sulfide powders with near‐infrared reflectance and spectral modulation for energy‐saving applications
JF - Journal of the American Ceramic Society
DO - 10.1111/jace.19854
DA - 2024-09-01
UR - https://www.deepdyve.com/lp/wiley/yellow-rare-earth-sulfide-powders-with-near-infrared-reflectance-and-HCFS3bGjCS
SP - 6060
EP - 6069
VL - 107
IS - 9
DP - DeepDyve
ER -