Qian-cheng Zhang

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Using SiO2, activated carbon (AC) and Al2O3 as supports, the supported photocatalysts Ni-V-O/SiO2, Ni-V-O/AC and Ni-V-O/Al2O3 were prepared by impregnation method, and their spectralsignatures were investigated. The carbonylation of methanol with CO2 under UV irradiation was used as a probe reaction to compare the photocatalytic performance of the prepared(More)
Ni-Ti-O/SiO2 catalyst was prepared by impregnation method, and its photocatalytic performance for carbonylation of methanol with CO2 was investigated under UV light. The in-situ IR, XPS and MS were carried out to analyze the possible photocatalytic reaction mechanism. Results indicated that the Ni-Ti-O/SiO2 exhibited good photocatalytic performance for(More)
The ionization potential and electron affinities of the purines and pyrimidines in DNA and RNA were calculated with the AM1 semiempirical method. The values support the experimental values. The electron affinities are significant, and positive, such that donor-acceptor interactions can, and indeed should play a role in the stacking of bases in nucleic(More)
In order to develop the cheap and efficient photocatalysts, kaolins were modified through calcination and acid leaching. In succession, the prepared samples were characterized using thermal gravimetric-differential thermal analysis (TG-DTA), scanning electron microscope (SEM) coupled with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD),(More)
  • 1