戊二醛修飾上轉換發光材料Na[Y0.57Yb0.39Er0.04]F4的制備與表征

留言板

尊敬的讀者、作者、審稿人, 關于本刊的投稿、審稿、編輯和出版的任何問題, 您可以本頁添加留言。我們將盡快給您答復。謝謝您的支持!

姓名

郵箱

手機號碼

標題

留言內容

驗證碼

戊二醛修飾上轉換發光材料Na[Y_0.57Yb_0.39Er_0.04]F₄的制備與表征

基金項目:

No.20273007)

國家自然科學基金資助項目(No.50372006

1. School of Applied Science, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要: 利用表面接枝改性法,用戊二醛作修飾劑,對上轉換發光材料Na[Y_0.57Yb_0.39Er_0.04]F₄進行了表面醛基修飾.傅里葉紅外吸收光譜證明了醛基的存在,紫外分光光度法定量檢測修飾醛基的含量為1.38×10^-3mol·g^-1,熱分析定性地證明了材料表面有機官能團的存在,掃描電鏡顯示了修飾后上轉換無機發光材料顆粒的直徑有所增加.沉降實驗表明,修飾醛基后的上轉換發光材料在水溶液中的分散穩定性得到了提高.
- 發光材料 /
- 上轉換 /
- 表面修飾 /
- 醛基
Abstract: With glutaraldehyde as finishing agent, the surface of an up-conversion luminescent material, Na[Y_0.57Yb_0.39Er_0.04] F₄, was modified with aldehyde groups by surface grafting modification. FI-IR proved that aldehyde groups existed on the surface. The quantity of aldehyde groups was 1.38 ×10³ mol·g^-1 which was detected by UV. Qualitative TGA indicated that there were organic groups on the surface. The particle diameter of the modified up-conversion luminescent material was aggrandized in SEM. In settlement testing, the modified up-conversion luminescent material has more favorable dispersion stability than un-modified materials.
- luminescent materials /
- up-conversation /
- surface modification /
- aldehyde groups