Size-controllable synthesis of surface-enhanced Raman scattering-active gold nanoparticles coated on TiO2

Tai Chih Kuo, Ting Chu Hsu, Yu Chuan Liu, Kuang Hsuan Yang

研究成果: 雜誌貢獻文章

9 引文 斯高帕斯(Scopus)

摘要

As shown in the literature, gold nanoparticles (NPs) were popularly used in the fields of catalyst and surface-enhanced Raman scattering (SERS). In this work, size-controllable Au NPs coated on TiO2 are synthesized by adjusting the pH of solutions based on sonoelectrochemical methods. The size-controlled Au NPs on TiO2, ranging from 2 to 80 nm in diameter, can be obtained by varying the pH of solutions from 3 to 7 and placing the sample for 3 h before sonoelectrochemical reductions. The optimal particle sizes of Au NPs on TiO2 to obtain the strongest SERS effects under an irradiation of 785 nm for probe molecules of adsorbed Rhodamine 6G (R6G) and deposited polypyrrole (PPy) are all ca. 60 nm.

原文英語
頁(從 - 到)3847-3853
頁數7
期刊Analyst
137
發行號16
DOIs
出版狀態已發佈 - 八月 21 2012

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Electrochemistry
  • Biochemistry
  • Environmental Chemistry

指紋 深入研究「Size-controllable synthesis of surface-enhanced Raman scattering-active gold nanoparticles coated on TiO<sub>2</sub>」主題。共同形成了獨特的指紋。

  • 引用此