A Sensitive Silver Nanorod/Reduced Graphene Oxide SERS Analytical Platform and Its Application to Quantitative Analysis of Iodide in Solution

作者：Liu, Qingye; Zhang, Xinghui; Wen, Guiqing; Luo, Yanghe; Liang, Aihui^*; Jiang, Zhiliang

来源：Plasmonics, 2015, 10(2): 285-295.

DOI：10.1007/s11468-014-9807-z

• AgNR/rGO
• Microwave preparation
• Rhodamine 6G
• SERS nanosensor
• Iodine ion

Using the chemical-microwave reduced procedure with H2O2, NaBH4, and citrate as reducer, a silver nanorod (AgNR)/reduced graphene oxide (rGO) nanosheet composite (AgNR/rGO) was prepared in a solution with good stability. Upon addition of NaCl and molecular probe of rhodamine 6G (Rh6G), a stable and sensitive AgNR/rGO-aggregation (AgNR/rGOA) surface-enhanced Raman scattering (SERS) nanosensor was fabricated for Rh6G that exhibited a strongest SERS peak at about 1505 cm(-1). The SERS peak intensity is linear to Rh6G concentration in the range of 1.0-600 nmol/L, with a detection limit of 0.2 nmol/L. Combined with the iodide SERS quenching effect on the molecular probe, a 8-1500 nmol/L iodine in solution was detected by this SERS nanosensor analytical platform, with satisfactory results.

• 出版日期2015-4
• 单位广西师范大学