Preparation of PCN/BiOCl Composites and Photocatalytic Degradation of Tetracycline Hydrochloride
s PCN/BiOCl composites were prepared and identified by means of XRD, SEM, EDS, TEM, XPS, DRS, BET, PL, I-T, EIS, and M-S. The results show that PCNB has the best photocatalytic effect. The composites were used for the photocatalytic degradation of tetracycline hydrochloride (TC). TC photocatalytic degradation was accomplished by applying this material. Among them, PCNB50 had the best photocatalytic effect at 120 min of light exposure, and the degradation rate could reach 95.4%. The kinetics were analyzed and conformed to the first-order kinetic equations. The k value was 0.0212, which was three times that of PCN and four times that of CN. In this paper, the response surface was introduced to investigate the effects of pH, feeding amount, actual water samples, common anions, and cations in water on PCNB. Seven experiments were conducted on the catalyst to explore its cycling stability. This paper also calculated the valence band, conduction band, and flat band potential values of each material, and proposed the possible Z-type photocatalytic mechanism. The synthesized catalyst was also used for the photocatalytic levofloxacin (LVF) degradation, and the effect was good. This work will provide information visible light degradation and further removal of tetracycline hydrochloride, levofloxacin for future studies.
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