Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties
Red-emitted Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanophosphor coated on a mica flake (Y<sub>2</sub>O<sub>3</sub>:Eu@MF) or on TiO<sub>2</sub> having a rutile crystalline mica flake (Y<sub>2</sub>O<sub>3&l...
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2021-05-01
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| author | Se-Min Ban Mahboob Ullah Kyeong Youl Jung Byung-Ki Choi Kwang-Jung Kang Myung Chang Kang Dae-Sung Kim |
| author_facet | Se-Min Ban Mahboob Ullah Kyeong Youl Jung Byung-Ki Choi Kwang-Jung Kang Myung Chang Kang Dae-Sung Kim |
| author_sort | Se-Min Ban |
| collection | DOAJ |
| description | Red-emitted Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanophosphor coated on a mica flake (Y<sub>2</sub>O<sub>3</sub>:Eu@MF) or on TiO<sub>2</sub> having a rutile crystalline mica flake (Y<sub>2</sub>O<sub>3</sub>:Eu@TMF) has been prepared by an electrostatic interaction with the wet-coating method for the purpose of a pigment with luminescent and gloss properties. Aggregated Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>, prepared by the template method, was dispersed into nanosol by a controlled bead-mill wet process. The (+) charged Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanosol was effectively coated on the (−) charged mica flake (MF) or the TiO<sub>2</sub>/mica flake (TMF) by an electrostatic interaction between the Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanoparticles and MF or TMF at pH 6–8. The coating factors of Y<sub>2</sub>O<sub>3</sub>:Eu@MF were also studied and optimized by controlling the pH, stirring temperature, calcination temperature, and coating amount of Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>. The Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> was partially coated and optimized on the MF or TMF surface with a coating coverage of about 40–50% or 60–70%, respectively. Y<sub>2</sub>O<sub>3</sub>:Eu@MF and Y<sub>2</sub>O<sub>3</sub>:Eu@TMF were exhibiting the luminescent property of a red color under a 254 nm wavelength, and had a color purity of over 95% according to CIE chromaticity coordinates. These materials were characterized by X-ray diffraction, FE-SEM, zeta potential, and a fluorescence spectrometer. These materials with luminescent and gloss properties prepared in this work potentially meet their applications for security purposes. |
| first_indexed | 2024-03-10T11:31:49Z |
| format | Article |
| id | doaj.art-8b52f373e55a498f91d5f9465ab03b5b |
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| language | English |
| last_indexed | 2024-03-10T11:31:49Z |
| publishDate | 2021-05-01 |
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| spelling | doaj.art-8b52f373e55a498f91d5f9465ab03b5b2023-11-21T19:13:37ZengMDPI AGApplied Sciences2076-34172021-05-011110436510.3390/app11104365Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss PropertiesSe-Min Ban0Mahboob Ullah1Kyeong Youl Jung2Byung-Ki Choi3Kwang-Jung Kang4Myung Chang Kang5Dae-Sung Kim6A Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology (KICET), Jinju 52851, Gyeongsangnam-do, KoreaA Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology (KICET), Jinju 52851, Gyeongsangnam-do, KoreaDepartment of Chemical Engineering, Kongju National University, Gongju 31080, Chungcheongnam-do, KoreaCQV Co., 144, Seongjung-Ro, Jincheon-Eup, Jincheon-gun 27845, Chungcheongbuk-do, KoreaCQV Co., 144, Seongjung-Ro, Jincheon-Eup, Jincheon-gun 27845, Chungcheongbuk-do, KoreaGraduate School of Convergence Science, Pusan National University, Geumjeong-gu, Pusan 46241, KoreaA Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology (KICET), Jinju 52851, Gyeongsangnam-do, KoreaRed-emitted Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanophosphor coated on a mica flake (Y<sub>2</sub>O<sub>3</sub>:Eu@MF) or on TiO<sub>2</sub> having a rutile crystalline mica flake (Y<sub>2</sub>O<sub>3</sub>:Eu@TMF) has been prepared by an electrostatic interaction with the wet-coating method for the purpose of a pigment with luminescent and gloss properties. Aggregated Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>, prepared by the template method, was dispersed into nanosol by a controlled bead-mill wet process. The (+) charged Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanosol was effectively coated on the (−) charged mica flake (MF) or the TiO<sub>2</sub>/mica flake (TMF) by an electrostatic interaction between the Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanoparticles and MF or TMF at pH 6–8. The coating factors of Y<sub>2</sub>O<sub>3</sub>:Eu@MF were also studied and optimized by controlling the pH, stirring temperature, calcination temperature, and coating amount of Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>. The Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> was partially coated and optimized on the MF or TMF surface with a coating coverage of about 40–50% or 60–70%, respectively. Y<sub>2</sub>O<sub>3</sub>:Eu@MF and Y<sub>2</sub>O<sub>3</sub>:Eu@TMF were exhibiting the luminescent property of a red color under a 254 nm wavelength, and had a color purity of over 95% according to CIE chromaticity coordinates. These materials were characterized by X-ray diffraction, FE-SEM, zeta potential, and a fluorescence spectrometer. These materials with luminescent and gloss properties prepared in this work potentially meet their applications for security purposes.https://www.mdpi.com/2076-3417/11/10/4365red-emitted nanophosphorY<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>-coated mica or TiO<sub>2</sub>/micaluminescenceglosspearl pigment |
| spellingShingle | Se-Min Ban Mahboob Ullah Kyeong Youl Jung Byung-Ki Choi Kwang-Jung Kang Myung Chang Kang Dae-Sung Kim Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties Applied Sciences red-emitted nanophosphor Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>-coated mica or TiO<sub>2</sub>/mica luminescence gloss pearl pigment |
| title | Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties |
| title_full | Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties |
| title_fullStr | Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties |
| title_full_unstemmed | Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties |
| title_short | Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> Nanophosphor-Coated Mica or TiO<sub>2</sub>/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties |
| title_sort | y sub 2 sub o sub 3 sub eu sup 3 sup nanophosphor coated mica or tio sub 2 sub mica as red emitting pearl pigment coating factors luminescent and gloss properties |
| topic | red-emitted nanophosphor Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup>-coated mica or TiO<sub>2</sub>/mica luminescence gloss pearl pigment |
| url | https://www.mdpi.com/2076-3417/11/10/4365 |
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