为了在不改变碳点光学性能前提下提高耐高温性能,以三乙烯四胺为氮源,柠檬酸为碳源,采用水热法合成了蓝色的含氮碳量子点,并选择蓝色荧光的螺吡喃,两者在乙醇与丙酮混合溶液中反应36h,制取了表面负载螺吡喃的含氮碳点。采用X射线衍射仪、荧光光谱仪、紫外-可见吸收光谱仪和透射扫描电镜等表征手段分析合成物的性质。结果表明:碳量子点与螺吡喃在乙醇与丙酮溶液36h结合;负载螺吡喃的含氮碳点具有荧光特性;负载螺吡喃的含氮碳点相比未负载螺吡喃的含氮碳点提高了其耐高温性。
In order to improve the high temperature resistance without changing the optical properties of carbon dots,blue nitrogen-containing carbon quantum dots were synthesized by hydrothermal method using triethylenetetramine as nitrogen source and citric acid as carbon source.Blue fluorescent spiropyran was selected,and the two components were reacted in a mixed solution of ethanol and acetone for 36h to obtain nitrogen-containing carbon dots loaded with spiropyran on the surface.X-ray diffractometer,fluorescence spectrometer,UV-visible absorption spectrometer,transmission scanning electron microscope and other characterization methods were used to analyze the properties of the synthesized material.The following conclusions were obtained: carbon quantum dots and spiropyran were combined in ethanol and acetone solution after 36h.The spiropyran-loaded nitrogen-containing carbon dots had fluorescence characteristics.The high-temperature resistance of the spiropyran-loaded nitrogen-containing carbon dots was higher than that of unloaded spiropyran nitrogen-containing carbon dots.
[1] 李波.高性能氮掺杂碳点的制备、性质及应用研究[D].兰州:兰州大学,2019.
[2] 袁迪,刘志高.碳量子点的制备、性能及应用研究进展[J].化工新型材料,2024,52(1):54-60.
[3] 赵有俊.碳量子点的制备及光电特性研究[D].南昌:南昌大学,2023.
[4] Safaie B,Youssfefi M,Rezaei B.The structure and fluorescence properties of polypropylene/carbon quantum dot composite fibers[J].Polymer Bulletin,2021,79(3):1367-1389.
[5] Kaur A,Pandey K,Kaur R,et al.Nanocomposites of carbon quantum dots and graphene quantum dots:environmental applications as sensors[J].Chemosensors,2022,10(9):29.
[6] Li T F,Li Y W,Xiao L,et al.Electrochemical preparation of color-tunable fluorescent carbon quantum dots[J].Acta Physico-Chimica Sinica,2014,72(2):227-232.
[7] Mosconi D,Mazzier D,Silvestrini S,et al.Synthesis and photochemical applications of processable polymers enclosing photo luminescent carbon quantum dots[J].ACS Nano,2015,9(4):4156-4164.
[8] Elugoke S E,Fayemi O E,Adekunle A S,et al.Sensitive and selective neurotransmitter epinephrine detection at a carbon quantum dots/copper oxide nanocomposite[J].Journal of Electroanalytical Chemistry,2023,929:18.
[9] 刘禹杉,李伟,吴鹏.水热炭化制备碳量子点及其应用[J].化学进展,2018,30(4):349-364.
[10] Das R,Bandyopadhyay R,Pramanik P.Carbon quantum dots from natural resource:a review[J].Materials Today Chemistry,2018,8:96-109.
[11] Ai L,Liu H M,Liu R,et al.Dual sensitivity of spiropyran-functionalized carbon dots for full color conversions[J].Science China Chemistry,2022,65(11):2274-2282.
[12] Giordano M G,Seganti G,Bartoli M,et al.An overview on carbon quantum dots optical and chemical features[J].Molecules,2023,28(6):18.
[13] 丁镠,康守旺,王羽.氮、硫掺杂具有聚集诱导发光绿色碳点的制备与表征[J].发光学报,2023,44(11):2002-2010.
[14] Chekini M,Prince E,Zhao L,et al.Chiral carbon dots synthesized on cellulose nanocrystals[J].Advanced Optical Materials,2020,8(4):9.
[15] Fang Q Q,Dong Y Q,Chen Y M,et al.Luminescence origin of carbon based dots obtained from citric acid and amino group-containing molecules[J].Carbon,2017,118:319-326.
[16] Kausar A.Polymer/carbon-based quantum dot nanocomposite:forthcoming materials for technical application[J].Journal of Macromolecular Science,Part A:Pure and Applied Chemistry,2019,56(4):341-356.
[17] Li H,Kong W Q,Liu J,et al.Fluorescent N-doped carbon dots for both cellular imaging and highly-sensitive catechol detection[J].Carbon,2015,91:66-75.
[18] Li H T,He X D,Liu Y,et al.One-step ultrasonic synthesis of water-soluble carbon nanoparticles with excellent photoluminescent properties[J].Carbon,2011,49(2):605-609.
[19] Li X,Sun Y J,Zhu X S.Preparation of chiral carbon quantum dots and its application[J].Journal of Fluorescence,2023,34:13.
[20] Li H T,Liu R H,Kong W Q,et al.Carbon quantum dots with photo-generated proton property as efficient visible light controlled acid catalyst[J].Nanoscale,2014,6(2):867-873.
[21] Baker S N,Baker G A.Luminescent carbon nanodots:emergent nanolights[J].Angewandte Chemie International Edition,2010,49(38):6726-6744.
[22] Senel B,Demir N,Büyükköroglu G,et al.Graphene quantum dots:synthesis,characterization,cell viability,genotoxicity for biomedical applications[J].Saudi Pharmaceutical Journal,2019,27(6):846-858.
基金资助
国家先进印染技术创新中心科研基金项目(2022GCJJ20)
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