Influence of Surface Morphology and Conductivity on Photocatalytic Performance of Solution‐Processed Zinc Oxide Film

Abstract

Solution-processed ZnO films with various structures have been fabricated and the influence of surface morphology and conductivity on photocatalytic performance, including improvement of conductivity, hydrogen production, and photodegradation of rhodamine B, has been investigated. Surface morphology was controlled by solution conditions, and as-fabricated films had rod, dense, and flower-like structures. Improved conductivity was revealed by the photocatalytic activity of ZnO, the influence of surface morphology on the photodegradation of rhodamine B, and the relationship with conductivity and hydrogen production.

Hexagonal β-Co(OH)₂ Nanoparticle as a Precursor in a Solution-Processed LiCoO₂ and Its Electrochemical Properties

“…3. The surface morphology was changed by increasing the concentration of NaOH, the observed trend is quite similar to those reported in the literature but for the material ZnO [24]. The observed initial irregular morphologies ( Fig.…”

“…2b), and this could explain the evolution of (002) peak through variation of the concentration of NaOH at a fixed cobalt nitrate concentration. After the optimized value of 2 mL/min, the population of OHion becomes too high [24] in the vicinity of each cobalt ion, as illustrated in the diagram Fig. 2b, thus the grains fused together forming small crystals (detailed in the next section; SEM).…”