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材料导报  2020, Vol. 34 Issue (Z1): 34-38    
  无机非金属及其复合材料 |
基于Au修饰的花状V2O5的表面增强拉曼散射研究
杨松1,2, 盛双华1,2, 刘应开1,2
1 云南师范大学物理与电子信息学院,昆明 650500;
2 云南省光电信息技术重点实验室,昆明 650500
Study on Surface Enhanced Raman Scattering of Flower-like V2O5 MaterialsModified by Au Nanoparticles
YANG Song1,2, SHENG Shuanghua1,2, LIU Yingkai1,2
1 Institute of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China;
2 Yunnan Key Laboratory of Opto-electronic Information Technology, Kunming 650500, China
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摘要 通过一步水热法合成花状V2O5材料,随后利用离子束溅射法在花状V2O5表面沉积一层Au膜并在400 ℃条件下退火,获得Au纳米粒子修饰的花状V2O5@Au复合材料。通过XRD、XPS和TEM等手段对样品进行表征,同时对其进行表面增强拉曼散射(SERS)测试分析。结果表明:花状V2O5@Au复合材料作为SERS基底具有良好的拉曼活性,对罗丹明6G(R6G)的最低检测浓度可达1.0×10-8 mol·L-1,增强因子约为105;对浓度为10-6 mol·L-1的R6G测试30个不同点的SERS检测结果显示,特征峰强度的相对标准偏差(RSD)均低于20%,说明花状V2O5@Au复合材料对R6G的检测具有较高的灵敏度和良好的检测重现性。另外,花状V2O5@Au复合材料作为基底对致癌物孔雀石绿(MG)和罗丹明B(RhB)均表现出较高的检测灵敏度,其检测限(LOD)分别为4.36×10-9 mol·L-1和3.11×10-8 mol·L-1,这进一步表明该材料可应用于食品安全检测和环境监测。
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杨松
盛双华
刘应开
关键词:  花状V2O5@Au复合材料  表面增强拉曼散射  致癌物    
Abstract: The flower-like V2O5 materials were synthesized via one-step hydrothermal method. After that, gold films were deposited on the surface of the flower-like V2O5 materials by ion beam sputtering and then annealed at 400 ℃ to obtain the flower-like V2O5@Au materials. The samples were characterized by XRD, XPS and TEM, and surface-enhanced Raman effect (SERS) spectra were performed. It is found that the flower-like V2O5@Au materials are used as SERS substrates with good Raman activity, and their detected lowest concentration of rhodamine 6G (R6G) is 1.0×10-8 mol·L-1 and their enhancement factor is about 105. SERS spectra of the examined 30 points for R6G at the concentration of 10-6 mol·L-1 revealed that the relative standard deviation (RSD) of the characteristic peak intensity is less than 20%. The flower-like V2O5@Au materials have high sensitivity and good detection reproducibility for R6G detection. In addition, the flower-like V2O5@Au materials exhibit high sensitivity to the carcinogens malachite green (MG) and rhodamine B (RhB), and their limits of detection are 4.36×10-9 mol·L-1 and 3.11×10-8 mol·L-1 respectively. This substrate has a potential application for food safety and environmental monitoring.
Key words:  flower-like V2O5@Au composite    SERS    carcinogen
                    发布日期:  2020-07-01
ZTFLH:  TB333  
基金资助: 国家自然科学基金(11764046)
作者简介:  杨松,云南师范大学,硕士研究生,主要从事半导体纳米材料的合成及其表面增强拉曼散射特性的研究;刘应开,云南师范大学,博士研究生导师,1999年9月—2002年12月,在南京大学物理系攻读博士学位,专业:团簇物理与纳米技术,2003年1月获理学博士学位。2003年7月—2005年8月,在香港城市大学(中国)进行博士后研究,2018年被邀请至莱斯大学访学一年。主要从事一维纳米材料纳米薄膜的制备及其光谱性质、光电性质研究和应用。主持和参与多项国家自然科学基金、省自然科学基金,在国内外学术期刊上发表论文40余篇,其中18篇(第一作者)被SCl收录,论文所在期刊影响因子一半以上居学科前列,如在Advanced Materials和Applied Physics Letters上各发表2篇论文,有一篇封面文章。被他人的SCI检索论文引用100余次,单篇被他人的SCI检索论文引用达44次。已培养硕士研究生数十人,本科生百余人。
引用本文:    
杨松, 盛双华, 刘应开. 基于Au修饰的花状V2O5的表面增强拉曼散射研究[J]. 材料导报, 2020, 34(Z1): 34-38.
YANG Song, SHENG Shuanghua, LIU Yingkai. Study on Surface Enhanced Raman Scattering of Flower-like V2O5 MaterialsModified by Au Nanoparticles. Materials Reports, 2020, 34(Z1): 34-38.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2020/V34/IZ1/34
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