以蚕沙为碳源合成碳点的方法及其性能表征
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摘要
以蚕沙为碳源,经一定条件高温直接碳化或水热碳化,所得的产物经过纯化后得到发蓝色荧光的碳点溶液。通过透射电镜(TEM),紫外-可见吸收光谱,傅里叶红外光谱(FTIR)等对其性能进行表征。结果表明以蚕沙为原料制备的碳点荧光强度大,表面富含氨基和羟基,具有很强的亲水性,在pH 4~11的范围内和盐溶液中皆具有良好的荧光性能。此外考察了碳点对金属离子的响应性能,结果表明该碳点在选择性检测Cd~(2+)和Pb~(2+)方面具有潜在的应用价值。
Carbon quantum dots was obtained from silkworm excrement,under high temperature carbonization or hydrothermal carbonization. Transmission electron microscopy(TEM), UV-Visible spectra, fluorescence spectra,Fourier transform infrared spectra(FTIR) were used to characterize its properties. Results showed that the carbon quantum dots were uniform,good dispersion,no reunion phenomenon,with good salt resistance and alkali resistance,its surface was rich of amino and hydroxyl groups,and had a strong hydrophilicity. In addition,the response of carbon quantum dots to metal ions was investigated. The results showed that the carbon quantum dot had potential application value in selective detection of Cd~(2+) and Pb~(2+).
Carbon quantum dots was obtained from silkworm excrement,under high temperature carbonization or hydrothermal carbonization. Transmission electron microscopy(TEM), UV-Visible spectra, fluorescence spectra,Fourier transform infrared spectra(FTIR) were used to characterize its properties. Results showed that the carbon quantum dots were uniform,good dispersion,no reunion phenomenon,with good salt resistance and alkali resistance,its surface was rich of amino and hydroxyl groups,and had a strong hydrophilicity. In addition,the response of carbon quantum dots to metal ions was investigated. The results showed that the carbon quantum dot had potential application value in selective detection of Cd~(2+) and Pb~(2+).
引文
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[2]Shen J,Zhu Y,Yang X,et al.Chem Inform Abstract:Graphene Quantum Dots:Emergent Nanolights for Bioimaging,Sensors,Catalysis and Photovoltaic Devices[J].Cheminform,2012,43(29):3686-3699.
[3]Xiaoyou Xu,Robert Ray,Yunlong Gu,et al.Electrophoretic Analysis and Purification of Fluorescent Single-Walled Carbon Nanotube Fragments[J].Journal of the American Chemical Society,2004,126(40):12736-12737.
[4]张小燕.碳量子点和磁性纳米粒子的制备及其在生物传感器中的应用研究[D].上海:华东师范大学,2011.
[5]陶惠泉.荧光碳纳米点和磁性纳米石墨烯复合材料在生物成像与药物输送中的应用[D].苏州:苏州大学,2012.
[6]张白.聚多巴胺修饰的碳量子点:一种具有光热治疗作用的新型荧光碳点[D].厦门:厦门大学,2016.
[7]艾仕云,陆久田,范海,等.一种氮掺杂碳点配位稀土多色可调发光材料及其制备方法[P].CN:105154069 A,2015.
[8]陈继斌.高效荧光碳点的合成及其复合纳米材料的光催化降解性能研究[D].镇江:江苏大学,2017.
[9]闫菊平,王英特,陈莉,等.碳点的制备及其光电响应的研究[J].山西大学学报(自然科学版),2016,39(1):108-112.
[10]李景波.纳米碳点的制备及荧光性能研究[D].哈尔滨:哈尔滨工业大学,2014.
[11]宁雪.碳纳米材料的激光法制备及其紫外光学性能研究[D].南京:南京航空航天大学,2016.
[12]齐宝平,龙艳敏,包蕾,等.电化学方法在荧光碳点研究中的应用[J].电化学,2011,17(3):271-277.
[13]邱介山,胡超,于畅,等.化学氧化法制备荧光碳点的方法及其荧光碳点和应用[P].CN:104071769 A,2014.
[14]王林鹏,马玉洁,周学华,等.碳点的制备与应用研究进展[J].材料工程,2015,43(5):101-112.
[15]刘利芹,李原芳,詹蕾,等.水热法一步合成羟基包被的荧光碳点及其应用于金属离子的光传感[J].中国科学(化学),2011(10):1676-1676.
[16]刘金龙,林亮珍,胡锦凤,等.微波法制备纳米碳点反应机制与发光机理[J].物理化学学报,2018(1):92-98.
[17]刘慧,杨晓溪,郑佳佳,等.超声法一步合成生物相容的黄绿色荧光碳点[J].中国科学(化学),2013(7):895-900.
[18]刘兴会.高温热解法一步合成新型荧光碳点及其应用研究[D].西南大学,2014.
[19]Sahu S,Behera B,Maiti T K,et al.Simple one-step synthesis of highly luminescent carbon dots from orange juice:application as excellent bio-imaging agents[J].Chemical Communications,2012,48(70):8835-8837.
[20]Ruan S,Zhu B,Zhang H,et al.A simple one-step method for preparation of fluorescent carbon nanospheres and the potential application in cell organelles imaging[J].J Colloid Interface Sci,2014,422(10):25-29.
[21]聂辉,李敏杰,鞠博,等.两类荧光可调碳点的制备及在防伪油墨上的应用[J].高等学校化学学报,2015,36(2):293-298.
[22]徐孝林,唐湘云,宋东成,等.杂原子共掺杂碳量子点的制备及其性能表征[J].广州化工,2018(1):45-47.
[23]杨晓明,杨焜诚,王颖怡,等.由蘑菇制备碳点的方法及其碳点和应用[P].CN:107043097 A,2017.
[24]Wang C,Sun D,Zhuo K,et al.Simple and green synthesis of nitrogen-,sulfur-,and phosphorus-co-doped carbon dots with tunable luminescence properties and sensing application[J].Rsc Advances,2014,4(96):54060-54065.
[25]孙波,李勇,吴洪丽,等.蚕沙成分及提取工艺研究进展[J].中国蚕业,2009,30(4):18-21.