Abstract：The carbon quantum dots/gold nanocomposite (CQDs/Au) was prepared by reaction between carbon quantum dots (CQDs) and chloroauric acid. Then CQDs/Au was characterized using ultraviolet and visible spectrophotometer, fluorescence spectrometer and Fourier transform infrared spectrometer. Since phenol could significantly enhance the fluorescence of CQDs/Au at 445nm, a new determination method of phenol in water sample by fluorescence enhancement method was established. Meanwhile, the interaction conditions between CQDs/Au and phenol were optimized. The fluorescence intensity of testing system was measured at maximum excitation/emission wavelength of 342nm/445nm in presence of B-R buffer solution at pH=4.35. The results showed that the concentration of phenol in range of 6.0×10-6-9.0×10-5 mol/L was linear to the fluorescence intensity of system. The linear correlation coefficient was 0.9952. The detection limit of method was 5.4×10-6 mol/L. The experimental method was applied to the determination of phenol in waste water from a pharmaceutical factory. The found results were basically consistent with those obtained by spectrophotometry. The relative standard deviation (RSD, n=5) was in range of 1.8%-2.1%. The recoveries were between 94% and 101%.
李满秀, 李海平, 任光明, 何红芳, 刘莉莉. 碳量子点/金纳米复合材料荧光增强法测定废水中苯酚[J]. 冶金分析, 2019, 39(5): 32-36.
LI Man-xiu, LI Hai-ping, REN Guang-ming, HE Hong-fang, LIU Li-li. Determination of phenol in waste water by fluorescenceenhancement method with carbon quantum dots/gold nanocomposite. , 2019, 39(5): 32-36.
葛晓涵,朱英存.活性炭纤维富集光度法测定水中痕量苯酚的研究[J].现代化工,2015,35(10):186-190.GE Xiao-han,ZHU Ying-cun.Photometric determination of trace amounts of phenol in water after its enrichment with active carbon fiber[J].Modern Chemical Industry,2015,35(10):186-190.
[2]
施红林,徐祎然,李银科,等.溶剂捕集-高效液相色谱法测定卷烟主流烟气中苯酚[J].理化检验:化学分册,2010,46(7):807-812.SHI Hong-lin,XU Yi-ran,LI Yin-ke,et al.Rapid HPLC determination of phenol in mainstream of cigarette smoke with solvent trapping[J].Physical Testing and Chemical Analysis Part B:Chemical Analysis,2010,46(7):807-812.
[3]
王天娇,林勤保,宋欢,等.超高效液相色谱-串联质谱法测定食品包装纸中的酚类化合物[J].分析测试学报,2012,29(12):1153-1157.WANG Tian-jiao,LIN Qin-bao,SONG Huan,et al.Determination of phenols in food packaging paper by ultra performance liquid chromatography tandem mass spectrometry[J].Journal of Instrumental Analysis,2012,29(12):1153-1157.
[4]
吴坤,周贻兵,张卫国,等.气相色谱法测定化妆品中苯酚和氢醌的可行性及误差分析[J].微量元素与健康研究,2017,34(1):59-61.WU Kun,ZHOU Yi-bing,ZHANG Wei-guo,et al.Method feasibility and error analysis for phenol and hydroquinone determination in cosmetic by gas chromatography[J].Studies of Trace Elements and Health,2017,34(1):59-61.
[5]
李薇,叶芝祥.分子印迹-化学发光分析法测定水中苯酚的研究[J].环境科学,2010,31(11):2829-2834.LI Wei,YE Zhi-xiang.Molecularly imprinted technique-flow injection-chemoluminescence system analysis detect phenol in water[J].Environmental Science,2010,31(11):2829-2834.
[6]
陈雯雯,郭永明,郑问枢,等.金纳米颗粒可视化传感器在生物分子分析中的研究进展[J].分析化学,2014,42(3):307-316.CHEN Wen-wen,GUO Yong-ming,ZHENG Wen-shu,et al.Recent progress of colorimetric assays based on gold nanoparticles for biomolecules[J].Chinese Journal of Analytical Chemistry,2014,42(3):307-316.
[7]
翟宏菊,戴晓威,曹爽,等.金纳米粒子的合成、性质及其应用新进展[J].吉林师范大学学报:自然科学版,2017,38(2):13-16.ZHAI Hong-ju,DAI Xiao-wei,CAO Shuang,et al.New progress of synthesis,properties and applications of gold nanoparticles[J].Journal of Jilin Normal University:Natural Science Edition,2017,38(2):13-16.
[8]
孙墨杰,赵志海,陈红梅,等.碳量子点的合成研究进展与展望[J].化学通报,2016,79(8):691-698.SUN Mo-jie,ZHAO Zhi-hai,CHEN Hong-mei,et al.Research progress and prospective of synthesizing carbon quantum dots[J].Chemistry Bulletin,2016,79(8):691-698.
[9]
张彦,李敏,姜晶晶,等.荧光碳点的制备及应用研究进展[J].分析科学学报,2017,33(1):135-141.ZHANG Yan,LI Min,JIANG Jing-jing,et al.Synthesis and application of the fluorescent carbon dots[J].Journal of Analytical Science,2017,33(1):135-141.
[10]
林振华,唐志姣,胡玉玲,等.贵金属纳米粒子/碳量子点复合材料的制备及应用.[J].食品安全质量检测学报,2016,7(10):3866-3870.LIN Zhen-hua,TANG Zhi-jiao,HU Yu-ling,et al.Preparation and application of noble metal nanoparticles/carbon quantum dots nanocomposites[J].Journal of Food Safety and Quality,2016,7(10):3866-3870.
Peihui Luo,Chun Li,Gaoquan Shi,et al. Sythesis of gold @ carbon docts composite nanoparticles for surface enhanced Raman scattering[J] Phys.Chem.Chem.Phys.,2012,14:7360-7366.
[13]
王景霞,郭新秋,王戈,等.一步法制备高量子产率碳点/金复合纳米粒子[J].实验室研究与探索,2015,34(10):4-8.WANG Jing-xia,GUO Xin-qiu,WANG Ge,et al. One-step method to synthesize high quantum yield carbon dot/Au nanocomposite[J].Research and Exploration in Laboratory,2015,34(10):4-8.
[14]
魏永巨,李娜,秦身钧.磺基水杨酸的荧光光谱与荧光量子产率[J].光谱学与光谱分析,2004,24(6):647-651.WEI Yong-ju,LI Na,QIN Shen-jun.Fluorescence spectra and fluorescence quantum yield of sulfosalicylic acid[J].Spectroscopy and Spectral Analysis,2004,24(6):647-651.
[15]
Zhang Jia,Dong Liang,Yu Shu-hong.A selective sensor for cyanide ion (CN-) based on the inner filter effect of metal nanoparticles with photoluminescent carbon dots as the fluorophore[J].Science Bulletin,2015,60:785-791.
