高等学校化学学报 ›› 2014, Vol. 35 ›› Issue (3): 488-492.doi: 10.7503/cjcu20130936

• 分析化学 • 上一篇    下一篇

金属镍掺杂改进纳米TiO2的表面增强拉曼散射性能

江欣1,2, 秦晓宇2, 宫孟娣2, 李秀玲2, 李光植2, 杨立滨2(), 赵冰1()   

  1. 1. 吉林大学超分子结构与材料国家重点实验室, 长春 130012
    2. 佳木斯大学药学院, 佳木斯 154007
  • 收稿日期:2013-09-25 出版日期:2014-03-10 发布日期:2019-08-01
  • 作者简介:联系人简介: 杨立滨, 男, 博士, 副教授, 主要从事分子组装体与纳米结构谱学研究. E-mail: ylb76@163.com;赵 冰, 男, 博士, 教授, 博士生导师, 主要从事分子光谱研究. E-mail: zhaob@mail.jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21003063, 20921003, 20973074)、 教育部引智计划(批准号: B06009)、 黑龙江省自然科学基金(批准号: B201006, B201309)、 黑龙江省普通高等学校新世纪优秀人才培养计划(批准号: 1253-NCET-023)、 黑龙江省卫生厅科研课题(批准号: 2012-263)和佳木斯大学大学生创新创业训练计划省级项目(批准号: 2012sj030)资助

Improvement of Surface-enhanced Raman Scattering Properties of TiO2 Nanoparticles by Metal Ni Doping

JIANG Xin1,2, QIN Xiaoyu2, GONG Mengdi2, LI Xiuling2, LI Guangzhi2, YANG Libin2,*(), ZHAO Bing1,*()   

  1. 1. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
    2. College of Pharmacy, Jiamusi University, Jiamusi 154007, China
  • Received:2013-09-25 Online:2014-03-10 Published:2019-08-01
  • Contact: YANG Libin,ZHAO Bing E-mail:ylb76@163.com;zhaob@mail.jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21003063, 20921003, 20973074), the 111 Project, China(No.B06009), the Natural Science Foundation of Heilongjiang Province, China(Nos.B201006, B201309), the Program for New Century Excellent Talents in Heilongjiang Provincial University, China(No.1253-NCET-023), the Scientific Research Program of Health Department of Heilongjiang Province, China(No.2012-263) and the Provincial Undergraduate Training Programs for Innovation and Entrepreneurship of Jiamusi University, China(No.2012sj030)

摘要:

通过溶胶-水热法合成纯的和不同量Ni离子掺杂的TiO2纳米粒子, 将其作为表面增强拉曼散射(SERS)活性基底, 研究了金属Ni掺杂对于纳米TiO2 SERS性能的改进. 结果表明, 适量的Ni掺杂能够在纳米TiO2的能隙中靠近导带底的位置形成丰富的掺杂能级, 促进TiO2-to-molecule的电荷转移过程, 进而提高纳米TiO2基底对吸附分子的SERS增强能力, 显著改进纳米TiO2的SERS性能.

关键词: 表面增强拉曼散射, 二氧化钛, 金属掺杂, 电荷转移

Abstract:

Pure TiO2 and different amount Ni ions doped TiO2 nanoparticles were synthesized by a sol-hydrothermal method and served as surface-enhanced Raman scattering(SERS) active substrate. The improvement of SERS properties of TiO2 nanoparticles by metal Ni doping was mostly investigated. The results indicate that abundant metal doping energy levels can be formed near by the conduction band bottom in the energy gap of TiO2 by an appropriate amount Ni ions doping, which can promote the TiO2-to-molecule charge transfer process, and subsequently enhance SERS signals of adsorbed molecule on TiO2 substrate, and improve remarkably SERS properties of TiO2 nanoparticles.

Key words: Surface-enhanced Raman scattering(SERS), TiO2, Metal doping, Charge transfer

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