【摘要】：第一章：緒論。對量子點的性質(zhì)、制備方法、功能性修飾及表征做了簡要概述；隨后,著重對石墨烯量子點、硅量子點的制備和應(yīng)用進行了敘述,并對貴金屬鈀納米材料進行了描述；最后,對本論文的立體背景、研究內(nèi)容以及創(chuàng)新點進行了概括性綜述。第二章：石墨烯量子點的制備及應(yīng)用。以檸檬酸和NaOH作原料,采用一步熔融法合成了石墨烯量子點。隨后,使用交聯(lián)劑EDS和NHS將其與1,6-己二胺結(jié)合,得到了氨基化的石墨烯量子點,通過紫外-可見光譜和熒光光譜對其進行表征。利用氨基化的石墨烯量子點對對苯二酚進行了熒光檢測,線性范圍為1.0×10-7～5.0×10-6mol/L,檢測限為4.2×10-9mol/L。第三章：石墨烯量子點/鈀納米材料的制備及應(yīng)用。本章以氨基化石墨烯量子點作為支撐材料,制備了石墨烯量子點/鈀納米復(fù)合材料,并通過紅外光譜、透射電鏡和電化學對其進行了表征。利用此材料對甲酸進行了電化學檢測,測得氧化峰電流與甲酸濃度在一定范圍內(nèi)呈線性關(guān)系,其線性方程為：Ip(A)=3×10-5+0.0696 C (mol/L),線性范圍為：3×10-3～10-2mol/L。第四章：采用微乳法制備了烯丙胺修飾的硅量子點。通過紫外-可見吸收光譜、熒光光譜和紅外光譜對其光學性能進行了表征,通過透射電鏡對其形貌進行了表征,測得其熒光量子產(chǎn)率為10.06%,熒光壽命為τ1=3.1982 ns,τ2=12.4527 ns。第五章：硅量子點及硅量子點／鈀納米材料的應(yīng)用。依據(jù)硅量子點的光學性質(zhì),并首次制備了硅量子點支撐鈀納米粒子材料。我們通過量子點的濃度實現(xiàn)了鈀納米粒子形貌和尺寸的有效控制。結(jié)果表明我們制備的鈀納米材料具有較好的分散性,在有機催化和能源轉(zhuǎn)化領(lǐng)域具有潛在的應(yīng)用價值。并利用烯丙胺修飾的硅量子點對葡萄糖進行了檢測,其線性范圍為1.0×10-4～6.0×10-3 mol/L。第六章,結(jié)論和展望。對本論文所做的工作和下一步計劃進行了總結(jié),對本課題的前景做了概括。
[Abstract]:Chapter one: introduction. The properties, preparation methods, functional modification and characterization of quantum dots are briefly reviewed, and then the preparation and application of graphene quantum dots and silicon quantum dots are described, and the noble metal palladium nanomaterials are described. Finally, the paper summarizes the three-dimensional background, research content and innovation. Chapter 2: preparation and application of graphene quantum dots. Graphene quantum dots were synthesized by one step melting method using citric acid and NaOH as raw materials. Subsequently, the amino graphene quantum dots were obtained by using crosslinker EDS and NHS to bind to 1hexanediamine. The QDs were characterized by UV-Vis spectra and fluorescence spectra. The fluorescence detection of hydroquinone was carried out by using amino graphene quantum dots. The linear range was 1.0 脳 10 -7N 5.0 脳 10 -6 mol / L, and the detection limit was 4.2 脳 10 -9 mol / L. Chapter 3: preparation and application of graphene quantum dots / palladium nanomaterials. In this chapter, graphene quantum dots / palladium nanocomposites were prepared and characterized by infrared spectroscopy, transmission electron microscopy and electrochemistry. The electrochemical detection of formic acid by this material shows that the oxidation peak current is linear with the concentration of formic acid in a certain range, and the linear equation is: Ip (A) = 3 脳 10 ~ (-5) 0.0696 C (mol/L). The linear range is 3 脳 10 ~ (-3) mol / L ~ (-2) mol / L. In chapter 4, allylamine modified silicon quantum dots were prepared by microemulsion method. The optical properties were characterized by UV-Vis absorption spectra, fluorescence spectra and infrared spectra. The morphology of the films was characterized by transmission electron microscope. The fluorescence quantum yield was 10.06 and the fluorescence lifetime was 蟿 1 ~ 3.1982 ns,. 蟿 2n 12.4527 ns. Chapter 5: the application of silicon quantum dots and silicon quantum dots / palladium nanomaterials. Based on the optical properties of silicon quantum dots, the palladium nanoparticles supported by silicon quantum dots were prepared for the first time. We have realized the effective control of the morphology and size of palladium nanoparticles by the concentration of quantum dots. The results show that the palladium nanomaterials prepared by our method have good dispersion and potential applications in organic catalysis and energy conversion. Glucose was detected with allylamine modified silicon quantum dots. The linear range was 1.0 脳 10 ~ (-4) 渭 m ~ (-1) 脳 10 ~ (-3) mol/L.. Chapter VI, conclusions and prospects. This paper summarizes the work done and the next step plan, and summarizes the prospect of this topic.
【學位授予單位】：山西大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TB383.1

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相關(guān)期刊論文 前1條

1 王樂;錢銀鋒;余永強;;量子點在臨床相關(guān)研究中的應(yīng)用[J];中國介入影像與治療學;2010年01期

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