Preparation and near-infrared reflective characterization of Cu-doped sodium zincophosphate
| Autor: | Hui Xia, Da Gen Su, Ming Feng Zhong, Da Wang |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Coprecipitation Sodium Doping Near-infrared spectroscopy Analytical chemistry chemistry.chemical_element Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Wavelength chemistry law Phase (matter) Calcination Electrical and Electronic Engineering Monoclinic crystal system |
| Zdroj: | Physica B: Condensed Matter. 407:384-387 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/j.physb.2011.10.055 |
| Popis: | Cu-doped sodium zincophosphate [NaZn1−x(Cu)xPO4; x=0.05, 0.10, 0.15, and 0.20] powders were prepared by a coprecipitation method for the use as a dark heat-reflective material. The weighted average of the reflectance was calculated according to the reflectivity data measured using a UV–visible and near-infrared spectrophotometer. The measurement wavelength region was 380–2500 nm. The visible and near-infrared reflective properties of NaZn1−x(Cu)xPO4 doped with different amounts of Cu at varied calcination temperatures were investigated. NaZn(Cu)PO4 was found to be the main phase that crystallized in a monoclinic system of NaZn0.9(Cu)0.1PO4 at 800 °C. The sample of NaZn0.9(Cu)0.1PO4 was black in the visible region because of its high absorption, and its weighted average reflectance reached 51% in the near-infrared region. As a result, NaZn1−x(Cu)xPO4 has potential applications as a dark heat-reflective material. |
| Databáze: | OpenAIRE |
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