Effect of porosity on the absorbed, reemitted and transmitted light by a geopolymer metakaolin base |
| |
| Authors: | J. Ramó n Gasca-Tirado,J.C. Rubio-Á valos,M.S. Muñ iz-VillarrealA. Manzano-Ramí rez,J.L. Reyes-AraizaS. Sampieri-Bulbarela,Carlos Villaseñ or-MoraJ.J. Pé rez-Bueno,L.M. ApatigaVicente Amigó Borrá s |
| |
| Affiliation: | a Centro de Investigaciones y de Estudios Avanzados del I.P.N. Unidad Querétaro, Querétaro, Querétaro, C.P. 76230, Mexicob Faculty of Civil Engineering, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, C.P. 58000, Mexicoc Postdoctoral position at Centro de Investigaciones y de Estudios Avanzados del I.P.N. Unidad Querétaro, Querétaro, Querétaro, C.P. 76230, Mexicod Universidad de Guanajuato. Campus Celaya-Salvatierra, Celaya, Guanajuato, C.P. 38060, Mexicoe Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro-San Fandila, C.P. 76700, San Fandila, Pedro Escobedo, Querétaro, Mexicof Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, Querétaro, Mexicog Instituto de Tecnología de Materiales, Universidad Politécnica de Valencia. Camino de Vera, s/n. C.P. 46022, Valencia Spain |
| |
| Abstract: | In the present paper, the optical characterization of a geopolymer synthesized at three different temperatures (40, 60 and 90 °C) is described. The results were correlated to the porosity fraction in order to obtain a photoluminescent geopolymer.A two-flux model was employed to relate the fraction of light absorbed, remitted and transmitted by a representative layer of geopolymer. Porosity was measured by nitrogen adsorption and correlated with the optical properties to determine the fraction of UV/Vis light transmitted through the samples. It was found that the geopolymer synthesize temperature and the incident wavelength greatly affect the fraction of light transmitted by the samples.The UV/Vis spectrum was divided into three zones according to the observed behavior. In the first zone, the difference in transmission fraction was significant; in the second zone, this difference decreased and practically vanished at the third one.Considering the highest transmission fraction at 90 °C, a photoluminescent geopolymer with the strongest emitting peak at 469 nm was synthesized. |
| |
| Keywords: | Geopolymer Metakaolin Optical properties Aluminosilicate Photoluminescent |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
