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Response surface methodology (RSM) was employed to optimize the control parameters of TiO2/graphene with exposed {001} facets during synthesis, and its enhanced photocatalytic activities were evaluated in the photodegradation of… Click to show full abstract
Response surface methodology (RSM) was employed to optimize the control parameters of TiO2/graphene with exposed {001} facets during synthesis, and its enhanced photocatalytic activities were evaluated in the photodegradation of toluene. Experimental results were in good agreement with the predicted results obtained using RSM with a correlation coefficient (R2) of 0.9345. When 22.06 mg of graphite oxide (GO) and 2.09 mL of hydrofluoric acid (HF) were added and a hydrothermal time of 28 h was used, a maximum efficiency in the degradation of toluene was achieved. X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) were employed to characterize the obtained hybrid photocatalyst. The electron transferred between Ti and C retarded the combination of electron–hole pairs and hastened the transferring of electrons, which enhanced the photocatalytic activity.
Journal Title: Transactions of Tianjin University
Year Published: 2018
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