Preparation and Characterization of La2Ti2O7:Pr3+-Coated Pearlescent Pigment with Fluorescent

Wei Ming Zhou; Qing-Hua Chen; Mei Zhen Ke; Nan Wu; Qing Rong Qian; Hua Ji Zhang; Zhan Hui Yuan; Bao Quan Huang

doi:10.4028/www.scientific.net/AMR.884-885.220

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 884-885Preparation and Characterization of...

Preparation and Characterization of La₂Ti₂O₇:Pr³⁺-Coated Pearlescent Pigment with Fluorescent

Abstract:

The La₂Ti₂O₇:Pr³⁺-coated fluorescent pearlescent pigment (FPP) was prepared as follows: preparation of TiO₂-mica pearlescent pigment; subsequently coated with lanthanum hydroxide and praseodymium hydroxide; finally treated with high-temperature annealing to form La₂Ti₂O₇:Pr³⁺. The obtained samples were characterized by means of scanning electron microscopy (SEM), pan-automatic chromatis-meter, laser particle size analyzer, photoluminescence excitation (PLE) and emission (PL). It is shown that the surfaces of FPP are homogeneous, dense and smooth when pH = 8.0. Moreover, the color shifts to a green-yellow hue for FPP compare with TiO₂-mica pearlescent pigment. Besides, strong blue emission at 504 nm and red emission at 605 nm are observed on FPP.

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Periodical:

Advanced Materials Research (Volumes 884-885)

Pages:

220-223

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.884-885.220

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Online since:

January 2014

Authors:

Wei Ming Zhou, Qing-Hua Chen, Mei Zhen Ke, Nan Wu, Qing Rong Qian*, Hua Ji Zhang, Zhan Hui Yuan, Bao Quan Huang

Keywords:

Fluorescent, La₂Ti₂O₇:Pr³⁺, Multilayer, Pearlescent Pigment, Red Emission

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