Research Article

Microwave-Assisted Synthesis of Porous ZnO/SnS2 Heterojunction and Its Enhanced Photoactivity for Water Purification

Figure 4

Room temperature optical absorbance spectra ZnO, ZOSS1–3, and . Inset shows the Tauc (()2 versus ) plots and band gap estimates for the and the different heterojunctions. The band gap of ZnO was estimated from the onset of absorption on the main plot.