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Eu(DBM)_3Phen/PS复合纤维的制备与发光性能
  • 期刊名称:大连交通大学学报
  • 时间:0
  • 页码:50-52
  • 语言:中文
  • 分类:TQ342.742[化学工程—化纤工业] TQ227.3[化学工程—有机化工]
  • 作者机构:[1]School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China
  • 相关基金:This work was financially supported by the Natural Sci- ence Foundation of China (Nos. 21076028 and 50802010).
  • 相关项目:新型高效一维复合发光材料的静电纺丝制备与发光性质
中文摘要:

基于的潘波利阿克里洛尼特赖尔,平底锅 / 纤维素醋酸盐 CA,和 PAN/CA-Ag 激活碳 nanofiber ACNF 用静电的旋转和进一步的热处理被准备。Thermogravimetry 微分的扫描热量测定 TG-DSC 分析显示 CA 或 Ag 的增加没在平底锅材料的热分解上有重要影响,但是纤维的收益能被改进。扫描电子显微镜学 SEM 分析证明生产纤维的 micromorphologies 被先锋答案的粘性和传导性极大地影响。红外线的光谱学英尺红外分析证明了的 Fourier 变换 cyclized 或 trapezoidal 结构能形成,碳支架 C=C 契约创作,这出现在基于平底锅的 ACNF。在 X 光检查衍射 XRD 系列的典型衍射山峰是 turbostratic 结构的证据,银在 PAN/CA-Ag 存在基于的 ACNF。Brunner-Emmett-Teller 赌注分析证明做 CA 和 Ag 增加了表面区域和纤维的 micropore 体积;特别地, PAN/CA-Ag 基于展出的 ACNF 最好的孔特征。而且,那么 < 潜水艇 class= “ a-plus-plus ” > 2 个 吸附实验显示所有三纤维在更低的集中上有好吸附效果那么 < 潜水艇 class= “ a-plus-plus ” > 在房间温度的 2 ;特别, PAN/CA-Ag 基于显示出的 ACNF 最好的吸附性能,和它可以是在化学工业和环境保护的域里使用的最有希望的吸附物之一。

英文摘要:

Polyacrylonitrile (PAN), PAN/cellulose acetate (CA), and PAN/CA-Ag based activated carbon nanofiber (ACNF) were prepared using electrostatic spinning and further heat treatment. Thermogravimetrylifferential scanning calorimetry (TG-DSC) analysis indicated that the addition of CA or Ag did not have a significant impact on the thermal decomposition of PAN materials but the yields of fibers could be improved. Scanning electron microscopy (SEM) analysis showed that the micromorphologies of produced fibers were greatly influenced by the viscosity and conductivity of precursor solutions. Fourier transform infrared spectroscopy (FT-IR) analysis proved that a cyclized or trapezoidal structure could form and the carbon scaffold composed of C=C bonds appeared in the PAN-based ACNFs. The characteristic dif- fraction peaks in X-ray diffraction (XRD) spectra were the evidence of a turbostratic structure and silver existed in the PAN/CA-Ag based ACNF. Brurmer-Emmett-Teller (BET) analysis showed that the doping of CA and Ag increased surface area and micropore volume of fi- bers; particularly, PAN/CA-Ag based ACNF exhibited the best porosity feature. Furthermore, SO2 adsorption experiments indicated that all the three fibers had good adsorption effects on lower concentrations of SO2 at room temperature; especially, the PAN/CA-Ag based ACNF showed the best adsorption performance, and it may be one of the most promising adsorbents used in the fields of chemical industry and en- vironment protection.

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