高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (6): 1218-1223.doi: 10.7503/cjcu20200035

• 研究论文: 无机化学 • 上一篇    下一篇

CuS/Ag2S纳米复合物的制备及类过氧化物酶性质

王瑞雪,尹冬梅,宋永新,单桂晔*()   

  1. 东北师范大学物理学院, 紫外光发射材料与技术教育部重点实验室, 长春130024
  • 收稿日期:2020-01-15 出版日期:2020-06-10 发布日期:2020-03-09
  • 通讯作者: 单桂晔 E-mail:shangy229@nenu.edu.cn
  • 基金资助:
    国家自然科学基金(11740077)

Preparation of CuS/Ag2S Nanocomposite and the Peroxidase-like Properties

WANG Ruixue,YIN Dongmei,SONG Yongxin,SHAN Guiye*()   

  1. Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, School of Physics, Northeast Normal University, Changchun 130024, China
  • Received:2020-01-15 Online:2020-06-10 Published:2020-03-09
  • Contact: Guiye SHAN E-mail:shangy229@nenu.edu.cn
  • Supported by:
    † National Natural Science Foundation of China(11740077)

摘要:

采用水热法合成了一种微球状的CuS/Ag2S纳米复合物. 通过透射电子显微镜、 紫外-可见吸收光谱和拉曼光谱等对其形貌及光学性质进行了表征; 考察了其类过氧化物酶性质, 并通过表面增强拉曼散射原位监测了类过氧化物酶催化反应. 以3,3',5,5'-四甲基联苯胺(TMB)为底物进行显色反应, 结果表明, 在H2O2存在下CuS/Ag2S 纳米复合物具有类过氧化物酶的性质, 可以将无色的TMB氧化成蓝色的oxTMB. 基于此实现了对微量H2O2的检测.

关键词: 纳米复合物, 类过氧化物酶, 拉曼光谱, 过氧化氢

Abstract:

Amicrosphere-shaped CuS/Ag2S nanocomposites were synthesized by hydrothermal method. The morphology and optical properties of CuS/Ag2S nanocomposites were characterized by transmission electron microscopy, UV-Vis absorption spectroscopy, and Raman spectroscopy. The peroxidase-like properties were investigated, and peroxidase-like reactions catalyzed by CuS/Ag2S nanocomposite were detected by surface-enhanced Raman scattering in situ. The colorimetric reaction was performed using 3,3',5,5'-tetramethyl-benzidine(TMB) as a substrate, and it was proved that CuS/Ag2S nanocomposite has peroxidation-like properties in the presence of hydrogen peroxide(H2O2) which can oxidize colorless TMB to blue oxTMB. And the detection of H2O2 are realized.

Key words: Nanocomposite, Peroxidase-like, Raman spectroscopy, H2O2

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