Yan Liyun, Tang Jiahui, Qiao Qing-An, Cai Honglan, Dong Yuqi, Jin Juan, Xu Yanbin, Gao Hongwei
School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
School of Life Science, Ludong University, Yantai 264025, China.
Nanomaterials (Basel). 2023 Jan 3;13(1):214. doi: 10.3390/nano13010214.
BiMoO was one of the important bismuth-based semiconductors with a narrow bandgap, and has been widely used in selective oxidation catalysts, supercapacitors, and energy-storage devices. A series of BiMoO/ZnO composite photocatalysts with different mass ratios were synthesized by the hydrothermal method. The synthesized samples were characterized by XRD, PL, UV-Vis, SEM, TEM, XPS, and BET analysis techniques. Under visible light conditions, Methylene blue (MB) was used as the target degradation product to evaluate its photocatalytic performance. The results showed that the degradation rate constant of BiMoO/ZnO (0.4-BZO) was about twice that of the traditional photocatalysis of ZnO. The BiMoO/ZnO composite catalyst maintained stable performance after four consecutive runs. The high photocatalytic activity of BiMoO/ZnO was attributed to the efficient electron transport of the heterojunction, which accelerates the separation of electron-hole pairs and reduces the probability of carrier recombination near the BiMoO/ZnO heterojunction. BiMoO/ZnO nanocomposites have potential applications in the field of photodegradation.
BiMoO 是一种重要的窄带隙铋基半导体,已广泛应用于选择性氧化催化剂、超级电容器和储能装置。采用水热法合成了一系列不同质量比的 BiMoO/ZnO 复合光催化剂。通过 XRD、PL、UV-Vis、SEM、TEM、XPS 和 BET 分析技术对合成的样品进行了表征。在可见光条件下,以亚甲基蓝(MB)作为目标降解产物来评估其光催化性能。结果表明,BiMoO/ZnO(0.4-BZO)的降解速率常数约为传统 ZnO 光催化的两倍。BiMoO/ZnO 复合催化剂在连续四次运行后保持稳定性能。BiMoO/ZnO 的高光催化活性归因于异质结的高效电子传输,这加速了电子 - 空穴对的分离,并降低了 BiMoO/ZnO 异质结附近载流子复合的概率。BiMoO/ZnO 纳米复合材料在光降解领域具有潜在应用。