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首页> 外文期刊>RSC Advances >Electrochemistry of chemiluminescent novel hybrid nanocomposites based on polyaniline and hydrolyzed pectin with CdS nanoparticles
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Electrochemistry of chemiluminescent novel hybrid nanocomposites based on polyaniline and hydrolyzed pectin with CdS nanoparticles

机译：基于聚苯胺和CDS纳米粒子的化学发光新型杂交纳米复合材料的电化学

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摘要

Novel hybrid nanocomposites based on polyaniline (PANi), hydrolyzed pectin (HPEc) and CdS nanoparticles (NPs) as electrochemiluminescent biomaterials were prepared. The samples were fabricated via heterogeneous chemical polymerization and studied by FTIR, XRD, SEM, EDX, UV/Vis, TGA and DMTA analyses. The CdS@HPEc-g-PANi nanocomposite was produced via in situ coprecipitation of CdS NPs by direct addition of aqueous cadmium nitrate and sodium sulfide solutions into the polymerization system containing PANi and HPEc. The mCdS@HPEc-g-PANi nanocomposite was synthesized via a new two-step surface modification strategy. The as-prepared CdS NPs synthesized via the chemical precipitation method were modified with epichlorohydrin as an organic reagent to obtain modified CdS (mCdS) and subsequently modified with HPEc and polymerized with aniline hydrochloride to produce mCdS@HPEc-g-PANi. The more smooth morphology of the mCdS@HPEc-g-PANi relative to the CdS@HPEc-g-PANi was approved by the SEM images. The cyclic voltammetry and electrochemical impedance spectroscopy analyses were performed on the samples to evaluate electrochemical properties and the results have indicated the reinforcing effect of the nanoparticles on the electrochemical properties of the nanocomposites. The electrical conductivity measurements by the four probe method have shown a significant increase of electrical conductivity in the presence of the CdS-nanoparticles. The CL experiments confirmed the chemiluminescence effect in the nanocomposites and also higher luminescence intensity for mCdS@HPEc-g-PANi relative to the CdS@HPEc-g-PANi nanocomposite owing to better dispersion of CdS NPs in the former sample.
机译：制备基于聚苯胺（PANI），水解果胶（HPEC）和CDS纳米颗粒（NPS）作为电化学生物材料的新型杂化纳米复合材料。样品通过异质化学聚合制备，并通过FTIR，XRD，SEM，EDX，UV / Vis，TGA和DMTA分析研究。通过将Cds NPS的SITU COPRECIPITITION通过直接加入含有PANI和HPEC的聚合体系的CDS NPS的CDS NPS原位共沉淀产生CDS / HPEC-G-PANI纳米复合材料。通过新的两步表面改性策略合成MCDS @ HPEC-G-PANI纳米复合材料。通过化学沉淀法合成的AS制备的CdS NPS用异氯醇作为有机试剂来改性，得到改性Cds（MCD），随后用HPEC改性并用盐酸苯胺聚合，产生MCDS-G-PANI。 MCDS @ HPEC-G-PANI相对于CDS @ HPEC-G-PANI更平滑的形态，由SEM图像批准。在样品上进行循环伏安法和电化学阻抗光谱分析以评估电化学性质，结果表明了纳米颗粒对纳米复合材料的电化学性质的增强效应。通过四个探针方法的电导率测量显示在CDS-纳米颗粒存在下显着增加导电性。 CL实验证实了纳米复合材料中的化学发光效应以及相对于CDS @ HPEC-G-PANI的MCDS @ HPEC-G-PANI的发光强度，由于CDS NP在前样品中更好地分散。

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  • 来源
    《RSC Advances》 |2019年第12期|共12页
  • 作者

    Alipour Azita; Lakouraj Moslem Mansour; Roudbari Mohsen Najafi; Chaichi Javad;

  • 作者单位

    Univ Mazanadaran Dept Organ Chem Polymer Lab Fac Chem POB 47416 Babol Sar Iran;

    Univ Mazanadaran Dept Organ Chem Polymer Lab Fac Chem POB 47416 Babol Sar Iran;

    Univ Mazandaran Analyt Chem Dept Fac Chem POB 47416 Babol Sar Iran;

    Univ Mazandaran Analyt Chem Dept Fac Chem POB 47416 Babol Sar Iran;

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  • 正文语种 eng
  • 中图分类 化学;
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