Y3+ 掺杂的钼酸铋钠电极制备及降解西地那非反应机理
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中图分类号：X522 文献标志码：A 文章编号：1671-5489（2025）04-1212-07
Preparation of Y3+ -Doped Sodium Bismuth Molybdate Electrode and Degradation Mechanism of Sildenafil
SUN Jiahong1，LI Jiayi1，FU Zhongdong²，WANG Hongning²，FENG Wei1 （ College of New Energy and Enuironment， Jilin University， Changchun l30o21， China; 2. Jilin Tuoda Environmental Protection Equipment Engineering Co.，Changchun 13Oo62，China）
Abstract：The NaBi（ MoO4）2 electrode was prepared by the pressed sheet method，and the material was modified by doping with Y3+ . The morphology，structure and electrochemical properties of the electrodes were characterized by X-ray difraction （XRD）， scanning electron microscope （SEM）， transmission electron microscope （TEM），ultraviolet-visible-diffuse reflectance spectrum （UV-VisDRS） and electron spin resonance （ESR），and the performance and reaction mechanism of the photocatalytic degradation of sildenafil were also investigated. The experimental results show that the NaBi（MoO4）2 -based electrode has a lamellar structure and high purity，with the size ranging from about 37.5nm to 24.6nm . In the optimal electrolyte Na2SO4 solution with a concentration of 0.5mol/L and the optimal bias voltage of 5V ，sildenafil can be completely removed after 70min ： Keywords： sodium bismuth molybdate； sildenafil； photocatalysis； pressed sheet electrode
西地那非 （C22H30N6O4S） 为白色结晶粉末，密度为 39g/cm3 ，主要用于治疗心血管疾病[1-2].人体服用后，在其尿液和粪便中含有约 80% 给药量的西地那非．若将未完全处理的西地那非废水排放
到环境中，将对生态环境产生不良影响[3].
与物理、化学和生物等现代处理方法相比，光催化氧化技术具有反应条件温和、操作简单、无二次污染等优点，是解决环境污染的有效途径[4-5]。（剩余14979字）