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›› 2011, Vol. 11 ›› Issue (4): 711-715.

• 材料工程专栏 • 上一篇    下一篇

Facile Synthesis of Gold-nanoparticles-decorated Polymer Assemblies and Core-Shell Gold Nanoparticles Using Pluronic Block Copolymers

寿庆辉 郭晨 高红帅 周华从 刘春朝 刘会洲   

  1. 中国科学院过程工程研究所分离科学与工程实验室 中科院过程工程研究所分离科学与工程青年实验室、生化工程国家重点实验室、中科院研究生院 中国科学院过程工程研究所绿色过程与工程实验室 中国科学院过程工程研究所绿色过程与工程实验室 中国科学院过程工程研究所生化工程国家重点实验室 中国科学院过程工程研究所分离工程与工程青年实验室
  • 收稿日期:2011-05-27 修回日期:2011-06-10 出版日期:2011-08-20 发布日期:2011-08-20
  • 通讯作者: 寿庆辉

Facile Synthesis of Gold-nanoparticles-decorated Polymer Assemblies and Core-Shell Gold Nanoparticles Using Pluronic Block Copolymers

SHOU Qing-hui GUO Chen GAO Hong-shuai ZHOU Hua-cong LIU Chun-zhao LIU Hui-zhou   

  1. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Young Scientist Laboratory of Separation Science and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences Laboratory of Green Process and Engineering, Institute of Process Engineering, CAS Laboratory of Green Process and Engineering, Institute of Process Engineering, CAS State Key Laboratory of Biochemical Engineering, Institute of Process Engineering Institute of Process Engineering, Chinese Academy of Sciences
  • Received:2011-05-27 Revised:2011-06-10 Online:2011-08-20 Published:2011-08-20
  • Contact: SHOU Qing-hui

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摘要： Synthesis of gold nanoparticles (AuNPs) and Pluronic triblock copolymer composite in aqueous medium was studied. Gold-polymer nanocomposite with different structures was fabricated by tailoring the molar ratio of gold precursors to Pluronic P123 molecules or pH value of the P123 solution. When a lower volume ratio of [AuCl4-]/[P123] (0.05) was employed at pH 11.1, a nanostructure similar to plum pudding was obtained. AuNPs with an average diameter of 13.1 nm were embedded in Pluronic assemblies, and each one held about 21 single gold nanoparticles. When [AuCl4-]/[P123] was increased to 0.1, core-shell structure was obtained if the pH value was in the range of 10.6~11.6, while gold polyhedra were fabricated when pH value was 8.1. Typical core-shell AuNPs had an average diameter of 9.6 nm with a narrow size distribution, while gold polyhedras with a mean diameter of 12.8 nm was obtained. The specific morphologies of the resultant nanocomposite were presumably obtained due to the synergistic interaction among the reactants.

关键词: gold nanoparticles, Pluronic, nanocomposite, core-shell structure, assembly

Abstract: Synthesis of gold nanoparticles (AuNPs) and Pluronic triblock copolymer composite in aqueous medium was studied. Gold-polymer nanocomposite with different structures was fabricated by tailoring the molar ratio of gold precursors to Pluronic P123 molecules or pH value of the P123 solution. When a lower volume ratio of [AuCl4-]/[P123] (0.05) was employed at pH 11.1, a nanostructure similar to plum pudding was obtained. AuNPs with an average diameter of 13.1 nm were embedded in Pluronic assemblies, and each one held about 21 single gold nanoparticles. When [AuCl4-]/[P123] was increased to 0.1, core-shell structure was obtained if the pH value was in the range of 10.6~11.6, while gold polyhedra were fabricated when pH value was 8.1. Typical core-shell AuNPs had an average diameter of 9.6 nm with a narrow size distribution, while gold polyhedras with a mean diameter of 12.8 nm was obtained. The specific morphologies of the resultant nanocomposite were presumably obtained due to the synergistic interaction among the reactants.

Key words: gold nanoparticles, Pluronic, nanocomposite, core-shell structure, assembly

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