Preparation of Ce/g-C3N4/quantum dot carbon nitride boron and its photocatalytic degradation performance of tetracycline
The Ce/g-C3N4/quantum dot carbon nitride boron(CeCNB)photocatalytic materials were prepared through high-temperature calcination and in-situ precipitation method for the first time.The CeCNB morphology and property were carefully characterized.And its catalytic degradation performance of tetracycline(TC)under visible light was sincerely designed by considering the dosage of quantum dot carbon boron nitride(CBNQDs),pH and inorganic anions influence.The results showed that the photocatalytic degradation rate of TC could achieve 93％under 2 mL CBNQDs dosage and pH=7.0.The stability of CeCNB material was excellent through five cycles of experiments.Through mechanism analysis and density functional theory(DFT)calculations,the excellent photocatalytic performance of CeCNB materials was mainly due to enhanced light absorption by f-orbital electrons of Ce,easy formation of Ce4+/Ce3+redox group and negative-charge functional groups of CBNQDs.
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