发光学报2016，Vol.37Issue(6)：655-661,7.DOI:10.3788/fgxb20163706.0655
N掺杂碳量子点光稳定剂的制备及光学性能
Preparation and Optical Properties of N-doped Carbon Dots as Light Stabilizer
摘要
Abstract
Novel carbon dots were successfully synthesized by hydrothermal reaction with citric acid as carbon source, and 4-amino-2,2,6,6-tetramethylpiperidine was used to react with the oxygen-containing groups on carbon dots surface. This method would optimize the properties of carbon dots. The modified carbon dots are better than the unmodified carbon dots on the characteristics of ultravi-olet absorption and blue fluorescence-emission. The modified carbon dots exist in average particle size of 3. 16 nm, and have high fluorescence quantum yield of 21. 2% besides good water solubility and light color. The results show that the novel carbon dots can be used as light stabilizer in paper-making with high yield pulp and improved initial brightness of paper by 3 ISO% -4 ISO%. With the introducing of the radical scavenger groups, the novel carbon dots can effectively improve the light resistance of paper by capturing free radicals formed under lights.关键词
碳量子点/光稳定剂/荧光增白/自由基捕获剂Key words
carbon quantum dots/light stabilizer/fluorescent brightening/radical scavenger分类
数理科学引用本文复制引用
王子儒,张光华,郭明媛..N掺杂碳量子点光稳定剂的制备及光学性能[J].发光学报,2016,37(6):655-661,7.基金项目
陕西省自然科学基金(2009JM2010) （2009JM2010）
传化集团绿色轻化工助剂研发中心基金(20124932)资助 （20124932）
