Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (8): 949-957.DOI: 10.11944/j.issn.1000-0518.2019.08.180415

• Full Papers • Previous Articles     Next Articles

Synthesis and Photocatalysis of Metal Complexes with Schiff Base Derived from 2-Thiophene Carboxaldehyde and Ethylenediamine

HEI Jiahuia*(),YANG Liningb,LI Junc   

  1. aAerospace Technology School ,Xi'an 710100,China
    bDepartment of Pharmacy,Medical University of Xi'an,Xi'an 710021,China
    cCollege of Chemistry & Matericals Science,Northwest University,Xi'an 710069,China;
  • Received:2018-12-29 Accepted:2019-05-05 Published:2019-08-01 Online:2019-07-25
  • Contact: HEI Jiahui
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21671158)


The ligand N,N'-bis(thiophenaldehyde) ethylenediamine(L) obtained by the condensation between 2-thiophene carboxaldehyde and ethylenediamine were used for synthesis of new complexes [ZnLCl2](1) and [NiL'(NO3)2](2)(L'-thiophenaldehyde-ethylenediamine). The structures of these complexes and ligand were characterized by single crystal X-ray analysis. These compounds were used for modifying the surface of TiO2. The obtained photocatalysts(L-TiO2, 1-TiO2, 2-TiO2) were characterized by IR spectra, UV-Vis diffuse reflectance spectroscopy and XRD. Their photocatalytic activities in the photodegradation of 4-nitrophenol(4-NP) and Rhodamine B(RhB) were evaluated under UV-visible light irradiation. The results revealed higher photocatalytic activities of 1-TiO2 and 2-TiO2 than that of bare TiO2. In addition, the degradation rate can reach above 90%.

Key words: 2-thiophenealdehyde, Schiff base, metal complexes, titanium dioxide, photocatalytic degradation