シリカサンドからの蛍光体の合成

野々川 貴志; 今成 裕一郎; 戸田 健司; 白倉 重樹; 上松 和義; 佐藤 峰夫; 戸田 彩乃; 西須 佳宏; 小林 幹夫

doi:10.2109/jcersj.113.442

Notes

Synthesis of Phosphor Materials Using Silica Sand

Takashi NONOGAWA, Yu-ichiro IMANARI, Kenji TODA, Shigeki SHIRAKURA, Kazuyoshi UEMATSU, Mineo SATO, Ayano TODA, Yoshihiro NISHISU, Mikio KOBAYASHI

Author information

Takashi NONOGAWA
Graduate School of Science and Technology, Niigata University
Yu-ichiro IMANARI
Graduate School of Science and Technology, Niigata University
Kenji TODA
Graduate School of Science and Technology, Niigata University
Shigeki SHIRAKURA
Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
Kazuyoshi UEMATSU
Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
Mineo SATO
Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
Ayano TODA
Department of Chemical Engineering on Biological Environment, Faculty of Engineering, Hachinohe Institute of Technology
Yoshihiro NISHISU
Research Institute for Green Technology, National Institute of Advanced Industrial Science and Technology
Mikio KOBAYASHI
Research Institute for Green Technology, National Institute of Advanced Industrial Science and Technology

Keywords: Phosphor, Akermanite, Silica sand, Silicate, Afterglow

JOURNAL FREE ACCESS

2005 Volume 113 Issue 1318 Pages 442-445

DOI https://doi.org/10.2109/jcersj.113.442

Details

Abstract

The silica sand is primarily composed of high purity SiO₂. Mt. Iide over Niigata, Yamagata and Fukushima prefectures is known as a rich mine for silica sand. In this study, we adopted natural resource (silica sand from Mt. Iide, Osodani area) as a starting material for the synthesis of akermanite type long-persistent phosphor Sr₂MgSi₂O₇: Eu²⁺, Dy³⁺. The silica sand derived (Sr_0.98Eu_0.01Dy_0.01)₂MgSi₂O₇ showed long afterglow phenomena. Therefore, the silica sand can be potentially used in preparing silicate phosphors.

Corresponding author

Register with J-STAGE for free!