Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (7): 1492.doi: 10.7503/cjcu20200089

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Preparation of Histidine Modified Prussian Blue and Its Interaction with Silver Ions

LIU Zhaoyang,SONG Yongxin,WANG Tianshu,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:2020-02-20 Online:2020-07-10 Published:2020-03-30
  • Contact: Guiye SHAN E-mail:shangy229@nenu.edu.cn
  • Supported by:
    † National Natural Science Foundation of China(11774048)

Abstract:

The histidine modified Prussian blue(HisPB) was synthesized via hydrothermal method. Scanning electron microscopy(SEM), X-ray diffraction(XRD) and ultraviolet spectrophotometer(UV-Vis) were used to characterize the morphology and structures of the synthesized histidine modified Prussian blue. The volume of histidine modified Prussian blue increased and the surface became smoother. Meanwhile, the functional groups of histidine modified Prussian blue increased. These factors significantly improved the stability of Prussian blue in alkaline solution. The optimal pH value of silver ion detected by HisPB was determined to be 10. Silver ions were detected in a linear range of 6—40 μmol/L by monitoring the changes in absorption peak strength at 800 nm and the changes in color of the solution after the reaction of HisPB with silver ions.

Key words: Histidine, Prussian blue, Silver ion, Colorimetric detection

CLC Number: 

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