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Figure 3 | Nanoscale Research Letters

Figure 3

From: Porous-ZnO-Nanobelt Film as Recyclable Photocatalysts with Enhanced Photocatalytic Activity

Figure 3

The time-dependent UV–vis spectra in a and b are recorded for the methyl orange solution containing PZNF and ZNF, respectively. c The variation of relative concentration of remaining methyl orange molecules with respect to irradiation time. d Degradation changes as a function of irradiation time (80 and 160 min) over 10 cycles. The beginning concentration C0 is taken as that in a

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