Polyhedral bismuth vanadate (BVO) material was prepared using a straightforward hydrothermal method, and then a small-sized AgNi bimetallic co-catalyst was synthesized in situ on the surface of the polyhedral BVO through a chemical reduction method. The photocatalytic performance of the catalyst was studied. The physicochemical properties of the prepared AgNi/BVO material were characterized through various techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) spectroscopy, and nitrogen adsorption-desorption analysis. The results indicated that AgNi bimetallic co-catalysts were extensively loaded onto the unique morphology of BVO polyhedra, significantly increasing the metal attachment sites. Simultaneously, the AgNi loading also improved the crystallinity of BVO. The silver surface plasmon resonance effect, in conjunction with the nickel's lattice interface effect, enhanced the BVO catalyst's absorption of visible light and improved the separation of photo-generated electrons, thereby increasing the photocatalytic activity. Photocatalytic degradation experiments using MB (methylene blue) as a model pollutant demonstrated that when the ratio was 3:1, AgNi/BVO exhibited the highest catalytic activity, with a reaction rate of 5.4 times higher than that of BVO under visible light irradiation. This photocatalyst retained excellent photocatalytic activity even after four cycles of use.

“新医科”是一种从治疗为主到兼具预防、治疗、康养的生命健康全周期的医学新理念。本文依据“新医科”理念，针对《医学基础化学实验》教材中的“氧化还原反应和电极电位”部分实验进行了“医学-化学-生物”等学科的交叉、融合与创新，具体有：(1) 电池电动势的测量实验中用乙二胺四乙酸钠(Na₄Y)代替浓氨水，实现样品体系中Cu²⁺/Zn²⁺浓度的变化；(2) 氧化还原反应与电极电位的关系实验中用维生素C (Vc)的C₆H₆O₆ (氧化型)/C₆H₈O₆ (还原型)电对替代Br₂/Br⁻电对，实现不同电对氧化还原性质的对比研究；(3) 增设谷胱甘肽还原Fe³⁺的实验，实现医学热点—细胞铁死亡过程的跨界思考。通过系列改进使实验变得绿色环保和医教结合，对诠释基础化学中的“新医科”理念具有重要意义。