| Ag/Ag2MoO4/Bi2MoO6复合光催化剂的制备及其光催化性能 | |
| Preparation and Photocatalytic Activity of Ag/Ag2MoO4/Bi2MoO6 Composite Photocatalyst | |
| 摘要: 采用水热、化学沉积和原位光还原的方法成功制备了新型Ag/Ag2MoO4/Bi2MoO6三元复合光催化剂。通过X射线粉末衍射（XRD）、扫描电子显微镜（SEM）、X射线光电子能谱（XPS）和紫外可见漫反射光谱（UV-Vis DRS）等技术对材料的组成、形貌、光吸收特性和光电化学性能等进行系统分析。以四环素为目标污染物，研究Ag/Ag2MoO4/Bi2MoO6在可见光下的光催化性能。研究结果表明，相比于纯Ag2MoO4和Bi2MoO6，Ag的表面等离子体共振（SPR）效应显著拓宽了催化体系对可见光的吸收能力及响应范围。当Ag2MoO4理论负载量（质量分数）为24.6%时，Ag/Ag2MoO4/Bi2MoO6复合材料在20 min内可将四环素完全降解，且5次循环使用后仍保持较高的催化活性，表现出良好的循环稳定性。 | |
| 关键词: Ag2MoO4 Bi2MoO6 光催化 降解 抗生素 | |
| 基金项目: 国家自然科学基金（No.21808019，41772240）、江苏省自然科学基金（No.BK20181048，BK20180958）常州科技计划（No.CJ20190074）和江苏省高校自然科学基金（No.18KJB150014）资助。 | |
| Abstract: A novel Ag/Ag2MoO4/Bi2MoO6 ternary photocatalyst was successfully prepared by hydrothermal, chemical deposition and in-situ photoreduction process. The as-prepared photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and UV-visible diffuse reflection spectroscopy (UV-Vis DRS) to investigate the composition, morphology, optical absorption characteristics and photoelectrochemical properties. The photocatalytic performance of Ag/Ag2MoO4/Bi2MoO6 photocatalyst was evaluated with tetracycline as the target pollutant under visible light. The research results show that, compared with pure Ag2MoO4 and Bi2MoO6, the surface plasmon resonance (SPR) effect of Ag significantly broadens the visible light absorption capacity and response range of the catalytic system. When the theoretical loading (mass fraction) of Ag2MoO4 was 24.6%, Ag/Ag2MoO4/Bi2MoO6 ternary photocatalyst could completely degrade tetracycline within 20 min, and maintained high catalytic activity after 5 cycles of use, showing good cycle stability. | |
| Keywords: Ag2MoO4 Bi2MoO6 photocatalysis degradation antibiotic | |
| 投稿时间：2020-08-24 修订日期：2020-11-19 | |
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| 马帅帅,黄承娟,宗玉清,顾建东,叶招莲,薛金娟.Ag/Ag2MoO4/Bi2MoO6复合光催化剂的制备及其光催化性能[J].无机化学学报,2021,37(3):531-540. | |
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