Figure 8.

Charge transfer and separation in the rGO-TiO2composite. Schematic illustrating the charge transfer and separation in the rGO-TiO2 composite for the photoreduction of CO2 under visible light irradiation with the introduction of a new energy level, EF*.

Tan et al. Nanoscale Research Letters 2013 8:465   doi:10.1186/1556-276X-8-465
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