文献类型：期刊文献

英文题名：Recyclable three-dimensional Ag nanorod arrays decorated with O-g-C3N4 for highly sensitive SERS sensing of organic pollutants

作者：Qu, Lu-Lu[1];Geng, Zhi-Qin[1];Wang, Wen[2];Yang, Kai-Chun[5];Wang, Wei-Peng[5];Han, Cai-Qin[2];Yang, Guo-Hai[1];Vajtai, Robert[5];Li, Da-Wei[3,4];Ajayan, Pulickel M.[5]

机构：[1]Jiangsu Normal Univ, Sch Chem & Mat Sci, Xuzhou 221116, Jiangsu, Peoples R China;[2]Jiangsu Normal Univ, Sch Phys & Elect Engn, Jiangsu Key Lab Adv Laser Mat & Devices, Xuzhou 221116, Jiangsu, Peoples R China;[3]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[5]Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA

年份：2019

卷号：379

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：;EI(收录号：20192707139455);WOS:【SCI-EXPANDED(收录号:WOS:000488419700047)】；

基金：This research was supported by the National Natural Science Foundations of China (21505057, 61575087, and 21605062), the Priority Academic Program Development of Jiangsu Higher Education Institutions, the Brand Major of Universities in Jiangsu Province, and the Top-notch Academic Programs Project of Jiangsu Higher Education Institution (TAPP).

语种：英文

外文关键词：SERS substrates; Ag NRs; O-g-C3N4; Reusable

摘要：A three-dimensional (3D) substrate was developed by assembling a monolayer of graphitic carbon nitride (O-g-C3N4) on Ag nanorod arrays (Ag NRs) for sensitive and recyclable surface enhanced Raman scattering (SERS) detection. The prepared Ag NRs/O-g-C3N4 substrate not only generated a significant Raman enhancement effect as a result of the strong pi-pi stacking interaction between O-g-C3N4 and the analytes but also possessed excellent self-cleaning property via visible-light irradiation that was attributed to its outstanding catalytic performance. Highly sensitive SERS detection could be achieved with a LOD of 8.2 x 10(-10) M for R6 G, and the substrate could be used repeatedly for at least four cycles with tolerable intensity attenuation. In addition, the 3D substrate exhibited long-term stability originating from the electron-donor effect of O-g-C3N4 and high reproducibility due to the uniform decoration of O-g-C3N4 on the Ag NRs through the strong interaction. Furthermore, using Ag NRs/O-g-C3N4, the recyclable detection of antibiotics in a water sample was demonstrated with high sensitivity, which indicates that the 3D Ag NRs/O-g-C3N4 substrate is a promising candidate for eliminating the challenges of single-use SERS substrates and building a portable SERS platform to sense organic molecular species.