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Repeatability test on the photocatalytic paper (sample 1) on (a) MB and (b) MO. Degradation efficiency of MB decreased by approximately 3.2% in the second trial and 5.4% in the third trial (error bar: 5%). The corresponding values for MO were 6.4% and 13%. Light intensity at the sample: 963 Wm–2, error bar: 2%.
