Potassium doped graphitic carbon nitride with extended optical absorbance for solar light driven photocatalysis

Add time:07/29/2019    Source:sciencedirect.com

In this study, the structural distortion of graphitic carbon nitride (g-C3N4) has been done through potassium salt tempting towards an extended optical absorbance. Optical and morphological studies affirm that the potassium doping stimulate n − π∗ electronic transition ascribing towards a diminished charge recombination, high conduction band edge, and a narrow band gap. A comparative photocatalytic study of potassium doped g-C3N4 (0.8 K+-g-C3N4) with g-C3N4 has been performed through a solar-powered photocatalytic reactor to treat phenolic effluent, and the effect of operational parameters i.e. solar irradiance, pH, H2O2 concentration, and flow rate was also examined. It was observed that 0.8 K+- g-C3N4 shows 89.06% decomposition of phenol while with g-C3N4 exhibits 63.53% under optimum conditions.

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