Modern Chemistry & Applications

P Ponnambalam

Publications

• Research Article
  Interaction of Fluorescent 2-(1-Methoxynaphthalen-4-Yl)-1-(4-Methoxyphenyl)-4, 5-Diphenyl-1H-Imidazole with Pristine Zno, Cu-Doped Zno and Ag-Doped Zno Nanoparticles
  Author(s): P Ponnambalam, S Kumar and P RamanathanP Ponnambalam, S Kumar and P Ramanathan
  
  A sensitive 2-(1-methoxynaphthalen-4-yl)-1-(4-methoxyphenyl)-4, 5-diphenyl-1H-imidazole (MNMPI) fluorescent sensor for nanoparticulates like ZnO, Cu-doped ZnO and Ag-doped ZnO has been designed and synthesized. Facile preparation of ZnO, Cu-doped ZnO and Ag-doped ZnO nanoparticles by sol-gel method using PVP K-30 as templating agents is reported and characterised by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), UVVisible spectroscopy and photoluminescence spectroscopy (PL). The synthesized sensor release is enhanced by nanocrystalline pristine ZnO but is suppressed by Cu-doped ZnO and Ag-doped ZnO nanoparticles. The suppression of fluorescence is additional by copper than by silver doping. The LUMO and HOMO energy gap of MNMPI associated with Cu-doped ZnO are lowers compared to those of pristine ZnO and thus red shift compared to that with pristine ZnO. The avera.. View More»
  DOI: 10.4172/2329-6798.1000226

  Abstract PDF