Study On Ag₃PO₄@CPs Photocatalytic Synergistic Degradation Of Phenol And Antibiotics

A catalyst that degrades a certain type of dye or antibiotic is of little significance in practical application.Therefore,there is an urgent need for catalysts that can degrade multiple types of pollutants.Ag₃PO₄shown excellent visible light catalytic activity due to its narrow bandgap and has great application potential in photocatalytic degradation of pollutants.However,many inherent chemical properties of Ag₃PO₄greatly limit its further application in photocatalysis,including poor light stability,high electron-hole recombination rate,and photocorrosion during photocatalysis.Based on this,this subject proposed to use conjugated polymer coating to improve Ag₃PO₄,and prepared a variety of core-shell visible light photocatalyst composites based on Ag₃PO₄materials by chemical deposition method.The coating can effectively alleviate the photocorrosion of Ag₃PO₄,The results of the study are as follows:The core-shell Ag₃PO₄@PANI and Ag₃PO₄@GOQDs,and the ternary composite photocatalyst Ag₃PO₄@PANI/GOQDs were prepared by chemical deposition,respectively.On the basis of Ag₃PO₄@PANI photocatalyst,Ag₃PO₄@PANI was loaded with GOQDs,and the electron transport efficiency and adsorption performance of Ag₃PO₄were improved under the synergistic effect of GOQDs and PANI.The results showed that the removal rates of phenol,tetracycline,ciprofloxacin and various dyes by Ag₃PO₄@PANI/GOQDs（4%）were 99.1%,99.3%,99.6%and 100%,respectively.The BET test confirmed that the CPs material effectively improved the adsorption performance of Ag₃PO₄.The photoelectrochemical test results confirmed that the degradation performance of the composite material was compared with that of Ag₃PO₄.got a boost.The Ag₃PO₄@PANI/GOQDs maintained good stability even after six cycles of experiments.After adding scavenger,it was confirmed by radical trapping experiment that·h⁺and·O₂^-were the main active species for photocatalytic degradation.Figure 44;Table 2;Reference 70...