Results 241 to 250 of about 42,872 (287)
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Low-temperature synthesis of environment-friendly cool yellow pigment: Ce substituted SrMoO4
Materials Letters, 2020Abstract A new sequence of novel yellow pigments Sr1-xCexMoO4 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) was prepared by following low temperature hydrothermal method. The bandgap of the materials was decreased from 3.95 eV to 3.48 eV with an increase in the Ce3+ substitution. SrMoO4 rhomboids have turned into spherical balls as the Ce3+ substitution increased.
V. Elakkiya, S. Sumathi
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Highly Reflective Nanostructured Titania Shell: A Sustainable Pigment for Cool Coatings
ACS Sustainable Chemistry & Engineering, 2017Core–shell materials are designed to bring synergy of two materials. We describe a greener approach for fabrication of fly ash (FA)-based cool pigment having core–shell morphology, viz., FA as core and multilayers of nano-TiO2 as shell—introducing high reflectivity in the near infrared region.
Richa Sharma +2 more
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Nano-Titania Decorated Fly Ash as Self-Cleaning Antibacterial Cool Pigment
ACS Sustainable Chemistry & Engineering, 2015Fly ash (FA) is an industrial waste produced in large quantities whereas nano-TiO2 is a widely studied material for multifarious applications. Synergy of the two materials is created to produce a multifunctional composite material for low cost NIR reflective coating applications. Effective formation of a TiO2 shell on the FA core was achieved by use of
Richa Sharma +3 more
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A solar reflecting material for radiative cooling applications: ZnS pigmented polyethylene
Solar Energy Materials and Solar Cells, 1992Abstract Plastic foils containing nonabsorbing pigments can display a high reflectance of solar radiation combined with a high transmittance in the atmospheric window region in the thermal infrared. Such foils can be applied as selective covers enabling radiative cooling of an underlying material during the night and avoiding heating in direct ...
Torbjörn M.J. Nilsson +2 more
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Synthesis of solar heat-reflective ZnTiO3 pigments with novel roof cooling effect
Ceramics International, 2019Abstract TiO2 and ZnO based white paints are used worldwide to keep the buildings cool by reflecting solar heat flux. However, the cooling effect and lifetime of such coatings are limited by their band gap and fair reflectivity. Herein, scale-up synthesis of pure hexagonal ZnTiO3 pigment with an optical band gap of 3.75 eV is developed.
Jinpeng Lv +3 more
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Eco-friendly Li3InB2O6 based red pigments for various IR blocking cool coating applications
Optical Materials, 2020Abstract New red chromatic inorganic powder pigments were prepared by the introduction of Mn3+ in the host lattice of monoclinic Li3InB2O6. Substitution of Mn3+ ion in the indium site of host lattice changed the powder color from grey-white to (x = 0) red with (x = 0.08). The absorption spectra of the synthesized samples revealed that the development
S. Divya, Subrata Das
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Synthesis and properties of infrared reflection of iron-chromium-based cool pigment
2017 IEEE 7th International Conference Nanomaterials: Application & Properties (NAP), 2017Coatings containing the so-called cool pigments, which reflect infrared beams, besides providing greater resistance against weathering and longer lifetime, reflect a big portion of these surface-heating waves. Given the high price and great cost associated with extravagant use of cooling systems and to provide resistance against Heat island which leads
Ghazal Mobarhan +3 more
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Preparation of (Fe,Cr)2O3@TiO2 cool pigments for energy saving applications
Journal of Alloys and Compounds, 2019Abstract The use of cool pigments is considered to be a proper strategy to reduce energy consumption in buildings. In the present research, cool pigment nanocomposites based on Fe, Cr and Ti oxides were synthesized as two different composites namely (Fe,Cr)2O3@TiO2 core-shell and physically mixed oxides ones.
Somayeh Sadeghi-Niaraki +4 more
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Relationship Between the Degree of Iris Pigmentation and Corneal Sensitivity to a Cooling Stimulus
Cornea, 2019Purpose: To explore the relationship between the degree of iris pigmentation and corneal sensitivity threshold (CST) on a variety of different ethnicities, using the air-jet noncontact corneal aesthesiometer and by applying a consistent method of subject iris pigmentation classification ...
Anna M, Ntola +3 more
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SPIE Proceedings, 1991
Plastic foils containing nonabsorbing pigments can display a high reflectance of solar radiation combined with a high transmittance in the atmospheric window region in the thermal infrared. Such foils can be applied as selective covers enabling radiative cooling of an underlying material even in direct sunlight. Extensive calculations were performed of
Torbjorn M. Nilsson, Gunnar A. Niklasson
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Plastic foils containing nonabsorbing pigments can display a high reflectance of solar radiation combined with a high transmittance in the atmospheric window region in the thermal infrared. Such foils can be applied as selective covers enabling radiative cooling of an underlying material even in direct sunlight. Extensive calculations were performed of
Torbjorn M. Nilsson, Gunnar A. Niklasson
openaire +1 more source