Fig. 7 | Scientific Reports

Fig. 7

From: Manganese (III) meso-tetrakis(4-nitrophenyl) porphyrin sensitizes TiO₂ nanoparticles into visible region via a pyridyl linker for degradation of organic dyes

Fig. 7

(A) Photodegradation of different dyes in the presence of MnTNPP/SAPy@TiO2 at pH = 3 (RhB: rhodamine B, CV: crystal violet, MB: methylene blue, MR: methyl red, MO: methyl orange). (B) The effect of different catalyst on photodegradation of MO under CFL light and (C) Time course photodegradation of MO under CFL light in the presence of MnTNPP/SAPy@TiO2 and inset represents pseudo-first-order kinetic. (D) Scavenging analysis of photodegradation of MO in the presence of MnTNPP/SAPy@TiO2 under CFL light using 5 mg scavengers (AO: ammonium oxalate, p-BQ: p-benzoquinone, BHT:2,6-di-tert-butyl-4-methylphenol). The reactions were run using a 50 ml aqueous solution with pH = 3 containing 2 ppm MO, 10 mg catalyst and 62 µl H2O2 at 298 K.

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