Figure 4From: Porous-ZnO-Nanobelt Film as Recyclable Photocatalysts with Enhanced Photocatalytic Activitya TEM image of a single ZnO nanobelt obtained by annealing the porous ZnO nanobelt in air at 1,000°C for 1 h. The scale bar is 100 nm. b UV–vis spectra of 1 and 2 correspond the methyl orange solution, after 2 h irradiation, containing PZNF before and after annealing for 1 h, respectivelyBack to article page