北京大学学报（自然科学版）2025，Vol.61Issue(5)：853-859,7.DOI:10.13209/j.0479-8023.2025.069
苯二胺与柠檬酸碳量子点的疏水改性及光谱研究
Hydrophobic Modification and Spectroscopic Characterization of Citric Acid-Phenylenediamine-Derived Carbon Quantum Dots
摘要
Abstract
Citric acid was used as the carbon source,and three phenylenediamine isomers—o-phenylenediamine,m-phenylenediamine,and p-phenylenediamine—served as nitrogen sources to synthesize carbon quantum dots(CQDs)via a hydrothermal method.The resulting CQDs exhibited distinct colors:orange-yellow(o-phenylene-diamine),light yellow(m-phenylenediamine),and purple(p-phenylenediamine).The CQDs were subsequently mo-dified with oleylamine to introduce hydrophobic surface properties.Structural and optical properties before and after modification were characterized using Fourier transform infrared spectroscopy(FT-IR),fluorescence spectroscopy(FS),and ultraviolet-visible spectroscopy(UV-vis).The results indicate that the CQDs derived from m-phenylene-diamine showed the most enhanced hydrophobicity after oleylamine modification,with significantly improved solubility in toluene,which is attributed to strengthened hydrocarbon interactions.关键词
柠檬酸-苯二胺碳量子点(CQDs)/油胺改性/光谱表征Key words
citric acid-phenylenediamine-derived CQDs/oleylamine modification/spectroscopic characterization引用本文复制引用
王亚俐,王永超,谢国桢,曹锦涛,王成虎,王少杰,郝凤莲,白龙龙..苯二胺与柠檬酸碳量子点的疏水改性及光谱研究[J].北京大学学报（自然科学版）,2025,61(5):853-859,7.基金项目
中国科学院洁净能源创新研究院-榆林学院联合基金(YLUDNL2022009)、陕西省高层次引进人才项目(2022TZRC01)、秦创园高层次引进人才项目(QCYRCXM-2023-055)和榆林学院高层次引进人才项目(2023GK03)资助 （YLUDNL2022009）
