Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (5): 947.doi: 10.7503/cjcu20200119

• Article • Previous Articles     Next Articles

Synthesis and Enzymatic Activity of Ni, Ru Co-doped CePO4 Nanomaterials

WANG Qishun1,2,ZHANG Zeshu1,WANG Huan1,LIU Yu1,SONG Shuyan1,2,*(),ZHANG Hongjie1,2,*()   

  1. 1. State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China
    2. College of Applied Chemistry and Engineering,University of Science and Technology of China, Hefei 230026, China
  • Received:2020-03-04 Online:2020-05-10 Published:2020-03-30
  • Contact: Shuyan SONG,Hongjie ZHANG E-mail:songsy@ciac.ac.cn;hongjie@ciac.ac.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(21590794);† Supported by the National Natural Science Foundation of China(21771173);the Project of Chinese Academy of Sciences-Commonwealth Scientific and Industrial Research Organisation(CAS-CSIRO)(GJHZ1730)

Abstract:

NiRu-CePO4 nanoparticles with high specific surface area were synthesized by a simple hydrothermal method, which could avoid the separate nucleation process of the precious metal. The X-ray diffraction(XRD) pattern of NiRu-CePO4 is consistent with hexagonal cerium phosphate. The transmission eletron microscopy(TEM) and energy dispersive X-ray(EDX) characterization indicated that the nanoparticles have a length of ca. 20 nm along the longitude and the doped metals Ni and Ru are uniformly dispersed. The BET area is determined as 178.4 m2/g, and the zeta potential as -18.2 mV. NiRu-CePO4 exhibits good peroxidase-like and oxidase-like activities in wide pH range. 3,3',5,5'-tetramethylbenzidine(TMB) was used as the electron donor and the chromogenic reagent, and the activities were evaluated by monitoring the absorbance at 652 nm. The morphology, dispersion of the elements and valence state of Ce had no significant change when characterizing the used catalyst, confirming the good stability of NiRu-CePO4.

Key words: Cerium phosphate, Ruthenium, Bimetal, Peroxidase mimic, Oxidase mimic

CLC Number: 

TrendMD: