Abstract
负载纳米CeO2的多孔银的制备、表征及SERS研究
Preparation, Characterization and SERS Study of Porous Silver Supported CeO2 Particles
Received:September 05, 2019  
DOI:
中文关键词: 复合材料  纳米多孔银  CeO2微粒  碱溶制备  表面拉曼增强效应(SERS)  光催化
英文关键词: composites  nanoporous Ag  CeO2 particles  alkali dissolution preparation  surface Raman enhancement effect (SERS)  photocatalysis
基金项目:河北省自然科学基金(E2017210060);河北省教育厅重点项目(ZD2018075)
Author NameAffiliationE-mail
LIU Yue Department of Engineering Mechanics, Shijiazhuang Tiedao University,Provincial Collaborative Innovation Center of Mechanics of Intelligent Materials in Hebei, Shijiazhuang 050043, China 1785935155@qq.com 
LIU Zhe-yan Department of Engineering Mechanics, Shijiazhuang Tiedao University,Provincial Collaborative Innovation Center of Mechanics of Intelligent Materials in Hebei, Shijiazhuang 050043, China  
WANG Bao-sen Department of Engineering Mechanics, Shijiazhuang Tiedao University,Provincial Collaborative Innovation Center of Mechanics of Intelligent Materials in Hebei, Shijiazhuang 050043, China  
LI Gui-jing Department of Engineering Mechanics, Shijiazhuang Tiedao University,Provincial Collaborative Innovation Center of Mechanics of Intelligent Materials in Hebei, Shijiazhuang 050043, China ligj@stdu.edu.cn 
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中文摘要:
      采用NaOH溶液腐蚀Ag/CeO2/ZnO前驱体,制备出含有纳米CeO2微粒的多孔银复合材料。随着ZnO组元被溶解,CeO2微粒均匀分散到纳米多孔银的内表面。形貌表征表明,通过调节前驱体中ZnO的含量可细化纳米多孔AgCeO2复合材料的微观结构,当ZnO加入摩尔分数为70%时,CeO2微粒尺寸为6 nm。表面拉曼增强效应(SERS)测试表明,CeO2纳米微粒的形成和分散显著增强了多孔银的SERS性能;该复合材料在可见光条件下能够降解罗丹明(R6G)并有较好的自清洁性。
英文摘要:
      Nanoporous Ag composites with CeO2 nanoparticles were prepared by etching Ag/CeO2/ZnO precursors in a NaOH aqueous solution. CeO2 particles were evenly dispersed on the inner surface of the nanoporous Ag, as the ZnO component was dissolved. Morphology characterization results showed that the microstructure of the prepared nanoporous AgCeO2 composites can be refined by controlling the ZnO content in precursors. The particle size of CeO2 was decreased to about 6 nm when the molar ratio of ZnO in precursors was 70%. The test results showed that the formation and dispersion of CeO2 nanoparticles were facilitated to the enhancement of SERS effect. The nanoporous AgCeO2 substrates demonstrated a good self-cleaning function under the visible light irradiation through photocatalytic decomposition of rhodamine (R6G).
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