Hydrothermal Growth of 1D ZnO Nanorods Thin Films for Hydrogen Gas Production through Water Splitting Reaction

摘要

Current study aims to control the growth of vertically aligned zinc oxide (ZnO) nanorods (NRs) arrays on indium tin oxide (ITO) substrate with tuneable diameter and length by using hydrothermal method. FESEM result shows that the diameter of NRs are tuneable from 95 nm to 107 nm and its length can be varied from 2.0 μm to 5.0 μm by prolonging the synthesis duration. According to FESEM images, extent the synthesis duration renders denser NRs occupancy. XRD result reveals that the NRs have prefer orientation along 002 direction, which is distinguishly different from relative peak intensity of standard ZnO. The NRs are employed as photocatalyst thin film to produce hydrogen gas (H_2) via photocatalytic water splitting reaction.