以果糖、乙二胺、盐酸为原料,采用水热法将N、Cl原子掺杂在石墨烯量子点上,制备出氮氯共掺杂石墨烯量子点(N,Cl-GQDs),利用透射电镜、X射线光电子能谱、紫外-可见吸收光谱、荧光光谱等手段对其结构和性能进行了表征。结果表明:合成的N,Cl-GQDs为分散效果良好的球形,与单独氮掺杂及未掺杂的石墨烯量子点相比,双元素掺杂石墨烯量子点具有更好的光学性能。同时利用电化学发光淬灭原理构建了传感器,实现了对汞离子的检测,计算得出检测限为0.03ng/mL。
N and Cl atoms were successfully doped on graphene quantum dots by hydrothermal method to prepare N-Cl co-doped graphene quantum dots (N,Cl-GQDs) with fructose,ethylenediamine and hydrochloric acid as raw materials.The structure and properties of the graphene quantum dots were characterized by transmission electron microscopy,X-ray photoelectron spectroscopy,UV-visible absorption spectrum and fluorescence spectrum.The results showed that the synthesized N,Cl-GQDs were spherical with good dispersion effect,and the two-element doped graphene quantum dots had better optical properties than the nitrogen-doped and undoped graphene quantum dots.At the same time,a sensor was constructed based on the electrochemical luminescence quenching principle to realize the detection of mercury ions,and the detection limit was calculated to be 0.03ng/mL.
[1] Peng C,Yuan X.The role of center-N-doping in non-radiative recombination loss of nitrogen-doped graphene quantum dots[J].Materials Science in Semiconductor Processing,2022,139:106323.
[2] Peng J,Gao W,Gupta B K,et al.Graphene quantum dots derived from carbon fibers[J].Nano Letters,2012,12(2):844.
[3] Zhang Z,Jing Z,Nan C,et al.Graphene quantum dots:an emerging material for energy-related applications and beyond[J].Energy & Environmental Science,2012,5(10):8869-8890.
[4] Wajeeha S,Zeeshan A,Muhammad B,et al.Interactive behavior of graphene quantum dots towards noble metal surfaces[J].Physica E:Low-Dimensional Systems and Nanostructures,2023,147:115596.
[5] Wang Y M,Liu X Q,Kong W H,et al.Post-epoxidation of graphene quantum dots[J].Chemical Physics Letters,2018,706:140-144.
[6] 罗利明,孙红娟,彭同江,等.化学剥离膨胀石墨制备石墨烯及属性研究[J].非金属矿,2022,45(5):1-5.
[7] 李坤,张国军.碳量子点和石墨烯量子点在传感领域的研究进展[J].检验医学,2022,37(8):787-792.
[8] 王维,陈紫微,张月华.石墨烯量子点制备方法研究进展[J].纺织科学与工程学报,2019,36(1):134-145.
[9] Omar W,Soon F,Ahmad M,et al.Hydrothermal synthesis of biocompatible nitrogen doped graphene quantum dots[J].Energy & Environment,2021,32(7):1170-1182.
[10] Luo P H,Guan X F,Yu Y L,et al.Hydrothermal Synthesis of graphene quantum dots supported on three-dimensional graphene for supercapacitors[J].Nanomaterials,2019,9(2):201-206.
[11] Shen J H,Zhu Y H,Yang X L.One-pot hydrothermal synthesis of graphene quantum dots surface-passivated by polyethylene glycol and their photoelectric conversion under near-infrared light[J].New Journal of Chemistry,2012,36(1):97-101.
[12] 刘青,周桃玉.盐酸溶液中石墨烯量子点对碳钢的缓蚀性能[J].腐蚀与防护,2015,36(2):152-156.
[13] 刘晨艳,闫凯,马建中.碳点及其纳米复合材料抗菌性能的研究进展[J].化工新型材料,2022,50(1):56-61.
[14] Farzaneh M,Hassan V,Mohammad P.Immobilization of papain on nitrogen-doped graphene quantum dots improves the enzymatic properties and makes it a biosensor for cystatin C[J].Process Biochemistry,2022,118:307-316.
[15] Zhang X,Gu Y,Zhang Y,et al.Ratiometric intracellular pH sensors based on nitrogen-doped graphene oxide quantum dots[J].Heliyon,2022,8:e09411.
[16] Yao Q,Wu H Y,Jin Y H,et al.One-pot synthesis of fluorescent nitrogen-doped graphene quantum dots for portable detection of iron ion[J].Current Applied Physics,2022,41:191-199.
[17] Rocha A,Alayo M,Silva D.Synthesis of nitrogen-doped graphene quantum dots from sucrose carbonization[J].Applied Sciences,2022,12(17):8686.
[18] Zhang Y M,Zhao J Z,Sun H L,et al.B,N,S,Cl doped graphene quantum dots and their effects on gas-sensing properties of Ag-LaFeO3[J].Sensors and Actuators B:Chemical,2018,266:364-374.
[19] Wang X F,Wang G G,Li J B,et al.Direct white emissive Cl-doped graphene quantum dots-based flexible film as a single luminophore for remote tunable UV-WLEDs[J].Chemical Engineering Journal,2019,361:773-782.
[20] Tang L,Ji R,Cao X,et al.Deep ultraviolet photoluminescence of water-soluble self-passivated graphene quantum dots[J].ACS Nano,2012,6(6):5102-5110.
[21] Li X,Lau S P,T'ang L.Sulphur doping:a facile approach to tune the electronic structure and optical properties ofgraphene quantum dots[J].Nanoscale,2014,6(10):5323-5328.
[22] Tam T,Kang S G,Babu K F.Synthesis of B-doped graphene quantum dotS as a metal-free electrocatalyst for the oxygen reduction reaction[J].Joumal of Materials Chemistry A,20l7,5(21):10537-10543.
[23] 韩威,詹俊,石红,等.氮和硫双掺杂石墨烯量子点的合成及其性能研究[J].化工学报,2021,72(S1):530-538.
[24] 张坤,张志秋,马庆运,等.N掺杂石墨烯量子点的制备及在Fe3+检测中的应用研究[J].化工新型材料,2016,44(9):133-135.
[25] 袁才登,杨盼星,苏洁,等.硼氮共掺杂石墨烯量子点及对Hg2+的选择性检测[J].天津大学学报,2020,53(2):207-213.
[26] Nafiujjaman Md,Joon Hwang,Kwak Kwang Soo,et al.Synthesis of nitrogen- and chlorine-doped graphene 1uantum dots for cancer cell imaging[J].Nanosci Nanotechnol,2018,18(6):3793-3799.
[27] Fan X M,Wang S M,Li Z J,et al.A novel fluorescence sensor for the detection of chloride ion in artificial sweat and environmental water with Nitrogen-doped graphene quantum dots[J].Quimica Nova,2022,45(1):48-52.
[28] 樊雪梅,胡晓琴,刘衍丹,等.石墨烯量子点的合成及荧光加密防伪[J].西安工业大学学报,2022,42(5):500-506.
基金资助
商洛学院科研基金项目(21FK005);国家大学生创新创业训练计划项目(S202111396023)
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