Gold nanoparticles modified ZnO nanorods with improved photocatalytic activity

The Applications of Morphology Controlled ZnO in Catalysis

“…For example, Sun et al found that the photo-degradation efficiency of MB over ZnO nanorod arrays (NRs) was significantly enhanced by decoration with Au (ZnO/Au composite) [187]. A broader adsorption band, spanned from 500 to 700 nm in the visible light range was observed over ZnO/Au composite which was believed to result from defects, such as donor acceptor pairs, O and/or Zn vacancies, O and/or Zn interstitials, and surface state [188].…”

Direct in situ activation of Ag0 nanoparticles in synthesis of Ag/TiO2 and its photoactivity

“…An increase in initial concentration could inhibited light penetrating to the surface of the catalyst and thus reduced the formation of the hydroxyl radicals that play such an important role in the degradation. Herein, the degradation rates of 2-CP were also studied using the Langmuir-Hinshelwood (L-H) model [54] over 5 wt% Ag-TiO 2 catalyst and the linear plot of ln(C 0 /C t ) vs. irradiation time are shown in Fig. 8.…”

A facile method for fabricating Au-nanoparticles-decorated ZnO nanorods with greatly enhanced near-band-edge emission

“…Various deposition techniques, such as microemulsions [21], hydrothermal [22], pulsed electro-deposition [23], microwaveassisted deposition [24], and sputtering [25], have been employed to fabricate ZnO/metal hybrid nanostructures. Since high processing temperatures are required by most of these techniques, it is difficult to obtain pure metal particles without oxidation.…”