Synthesis And Sonocatalytic Properties Of Bismuth-based & Antimony-based Semiconductor Materials

Semiconductor nanomaterials have a wide range of applications in the degradation of pollutants.As a new type of semiconductor nanomaterials,bismuth-based has a wide band gap,specific structure and morphology,and is widely used in photocatalysis.Antimony-based materials are currently mainly used in electrode materials and photocatalysis.Ultrasonic catalytic technology is a novel advanced oxidation process,which has a high efficiency application in the treatment of wastewater pollutants.Therefore,the application of bismuth-based and antimony-based metal oxide semiconductor materials to ultrasonic catalysis is a very valuable application.Based on this,a series of bismuth-based and antimony-based metal oxide materials were synthesized in this paper to explore their ability to degrade pollutants.The specific research contents are as follows:?1?F-Bi₂Mo O₆catalysts with different molar ratios were prepared by solvothermal method and microwave method respectively.F-Bi₂Mo O₆samples were characterized by XRD,XPS and other testing methods,demonstrating that fluorine was successfully doped into Bi₂Mo O₆materials.The ultrasonic catalytic activity of synthesized F-Bi₂Mo O₆by solvothermal method was studied by the degradation of.quinoline blue and tetracycline to evaluate,and the ultrasonic catalytic activity of synthesized F-Bi₂Mo O₆by microwave method was researched by the degradation of methyl orange to evaluate,the variables affecting the catalytic activity of ultrasound were also explored.The results show that the materials prepared by both methods have good ultrasonic catalytic performance.?2?Bi₂WO₆catalyst was synthesized by one-step hydrothermal method.The phase,morphology,element composition and the specific surface area of the synthesized Bi₂WO₆catalyst under different hydrothermal reaction times were analyzed by XRD,TEM,XPS,and BET.The ultrasonic catalytic activity of Bi₂WO₆was evaluated by degrading tetracycline,and the effects of different ultrasonic variables on the ultrasonic catalytic performance were also discussed.The results show that the prepared Bi₂WO₆catalyst has a good degradation effect on tetracycline antibiotics.?3?The Sb₂Mo O₆catalyst was synthesized by a simple hydrothermal method.The phase,morphology,and elemental composition of the Sb₂Mo O₆catalyst under different p H conditions were analyzed by XRD,TEM and XPS.The ultrasonic catalytic activity of Sb₂Mo O₆was evaluated by degrading quinoline blue,and the effects of different ultrasonic variables on the ultrasonic catalytic performance were also discussed.The results show that Sb₂Mo O₆prepared with the reaction solution at p H 2 has the most ultrasonic degradation performance,and a possible ultrasonic catalytic mechanism for Sb₂Mo O₆ultrasonic degradation of quinoline blue is proposed.?4?Sb PO₄catalyst was synthesized by hydrothermal method,microwave method and reflux method,and the influence of adding different surfactants on its morphology and properties was explored.The phase composition and morphology of the Sb PO₄catalyst were analyzed by XRD,TEM and other characterization methods.The ultrasonic catalytic activity of Sb PO₄in different synthesis methods and Sb PO₄with different surfactants were evaluated by degrading acid blue and quinoline blue.The results show that the samples prepared under microwave conditions have better ultrasonic catalytic performance.