形貌和结构双向可控SERS基底的构筑及其对多环芳烃的高特异性高灵敏检测

项目名称： 形貌和结构双向可控SERS基底的构筑及其对多环芳烃的高特异性高灵敏检测

项目编号： No.21507089

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 化学工业

项目作者： 李丹

作者单位： 上海应用技术大学

项目金额： 21万元

中文摘要： 多环芳烃的表面增强拉曼光谱(SERS)应用研究是环境分析领域的研究热点，其核心问题在于开发形貌可控的SERS基底材料及建立SERS信号的特异性识别与放大检测技术。本项目拟采用光电协同合成法制备纳米结构和表面形貌双向可控的还原石墨烯@贵金属复合纳米材料；结合电压调控技术和分子印记技术，以含有2-5环的多环芳烃为研究对象，实现基于多环芳烃的电压调控SERS特异性识别与放大检测方法。本项目将重点研究还原石墨烯@贵金属复合纳米杂化材料的可控制备工艺、光电协同合成的作用机制和电压调控SERS作用机理等问题，并将其应用于多环芳烃的高特异和高灵敏SERS检测。 . 研究成果不仅为构建微观形貌和宏观结构双向可控的SERS基底材料提供了新的研究思路，而且对基于石墨烯基纳米材料的环境污染物SERS应用研究具有重要的学术价值和实际应用价值。

中文关键词： 多环芳烃；石墨烯复合材料；表面增强拉曼光谱；分析检测；传感器

英文摘要： The application of surface-enhanced Raman scattering (SERS) for the detection of polycyclic aromatic hydrocarbons (PAHs) is a frontier area of research in the environmental analysis. The most critical issues in SERS analysis are the morphology-controlled SERS substrates and its selectivity and sensitivity. In this study, a reduced graphene@nobel metal hybrid nanomaterials with controlled morphology and nanostructure has been developed by photoelectrochemical synthesis, and the proposed nanomaterials served as a highly selective and sensitive SERS sensor for simultaneous detection of 2-5 ring PAHs with the potential-controlled technique and molecular imprinted materials. The technical process, principle of photoelectrochemical method and the mechanism of potential-controlled SERS sensor are studied. . The fruits of this research not only pave the way towards the design of SERS substrates, but also can be applied for SERS detection of environmental pollutants with the graphene-based nanomaterials.

英文关键词： Polycyclic aromatic hydrocarbons(PAHs);Graphene-based nanomaterials;Surface-enhanced Raman scattering (SERS);Detection;Sensors