کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7883390 | 1509635 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Estudio de la capacidad fotocatalÃtica y refrigerante de una nueva paleta de pigmentos
ترجمه فارسی عنوان
بررسی ظرفیت فتوکاتالیتی و مبرد یک پالت رنگی جدید
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Optimized compositions of a four-color CMYK plus a green pigment have been prepared by the ceramic method: cobalt doping in Celsian (Ba0,9Co0,1)Al2Si2O8 (cyan), chromium in armalcolite (MgFe)(Cr0,2Ti2,8Fe)O10 (magenta), nickel in geikielite (Mg0,5Ni0,5)TiO3 (yellow), the perovskite CrNdO3 (green) and the same perovskite mineralized with alkaline earth fluorides (BaF2 and MgF2) (black). Both pigment powder and glazed sample in a conventional double firing frit (1050 °C) have been characterized with respect to its colorimetric performance by the model CIEL*a*b*, its cooling capacity (as cool pigments) by the measurement of the solar reflection index SRI and its photocatalytic capacity by means of the Orange II degradation test. The obtained results are compared with those obtained with commercial pigments of the CMY family of the zircon. The results indicate that the coloration of the powders and the enamelled samples is more intense, with L* values lower than the zircon homologous pigments, whereas the obtained chroma with the pigments of the zircon is better (b* negative for cyan, a* positive for magenta and b* positive for yellow). Regarding its cooling capacity, the results indicate high SRI values for all samples. In the case of Celsian SRI is higher than for vanadium-zircon, the green of perovskite slightly exceeds the eskolaite Cr2O3 value that is taken as reference. In the case of the black perovskite, very low SRI values are measured (SRI = 0 in the case of powder) and associated with high middle-infrared emissivity values, making it interesting as a pigment for absorbent substrates in solar collectors. The photocatalytic capacity over Orange II indicates half-life values around 55-70 minutes, lower than those measured in zircons (110-190 minutes).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: BoletÃn de la Sociedad Española de Cerámica y Vidrio - Volume 56, Issue 4, JulyâAugust 2017, Pages 166-176
Journal: BoletÃn de la Sociedad Española de Cerámica y Vidrio - Volume 56, Issue 4, JulyâAugust 2017, Pages 166-176
نویسندگان
Carina Gargori GarcÃa, Sara Cerro Lloria, Natalia Fas Argamasilla, Mario Llusar Vicent, Guillermo Monrós Tomás,