| 朱宇浩,李玙茜,刘子航,王欣萍,谢辉,杨赟.MOF-808/Bi2WO6光催化剂的构筑及其光催化性能研究[J].井冈山大学自然版,2025,(5):27-33 |
| MOF-808/Bi2WO6光催化剂的构筑及其光催化性能研究 |
| PREPARATION AND PHOTOCATALYTIC PROPERTIES OF MOF-808/Bi2WO6 COMPOSITES |
| 投稿时间:2024-12-27 修订日期:2025-03-22 |
| DOI:10.3969/j.issn.1674-8085.2025.05.004 |
| 中文关键词: MOF-808 Bi2WO6 光催化 罗丹明B |
| 英文关键词: MOF-808 Bi2WO6 photocatalysis Rhodamine B |
| 基金项目:国家自然科学基金面上项目(21673069); 国家级大学生创新创业训练计划项目(202410518016) |
| 作者 | 单位 | E-mail | | 朱宇浩 | 汉江师范学院化学与环境工程学院, 湖北, 十堰 442000 生物资源与生态环境保护十堰市重点实验室, 湖北, 十堰 442000 | | | 李玙茜 | 汉江师范学院化学与环境工程学院, 湖北, 十堰 442000 | | | 刘子航 | 汉江师范学院化学与环境工程学院, 湖北, 十堰 442000 | | | 王欣萍 | 汉江师范学院化学与环境工程学院, 湖北, 十堰 442000 | | | 谢辉 | 汉江师范学院化学与环境工程学院, 湖北, 十堰 442000 | | | 杨赟 | 汉江师范学院化学与环境工程学院, 湖北, 十堰 442000 生物资源与生态环境保护十堰市重点实验室, 湖北, 十堰 442000 | yangyunyun@hjnu.edu.cn |
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| 中文摘要: |
| 通过水热法成功构建具有不同比例的MOF-808/Bi2WO6复合型光催化材料,运用多种表征手段对材料的物理和化学性质进行分析表征。以罗丹明B(RhB)作为被降解的目标污染物,探究不同比例MOF-808/Bi2WO6的光催化性能差异性。实验结果表明,复合材料可以显著提高其光催化性能,其中,20%-MOF-808/Bi2WO6复合型光催化剂光催化降解效果尤为明显,可见光下反应60 min后,相对于纯Bi2WO6,其降解率提高了25%,显著提升其光催化性能。通过催化剂的再生-循环实验可知,复合材料光催化剂在五次再生-循环实验后光催化效果并无明显降低,因此该光催化剂具有良好的稳定性。经自由基捕获实验可以得出,空穴(h+)在催化过程中是主要的活性物质,羟基自由基(·OH)在催化过程中起到了一定的协同作用,而超氧自由基(·O2-)在催化过程中几乎没有贡献。 |
| 英文摘要: |
| In this paper, MOF-808/Bi2WO6 composite photocatalytic materials with different proportions were successfully constructed by hydrothermal method. A series of characterization methods were used to characterize the composites. Using Rhodamine B(RhB) as the target pollutant for degradation, the difference of photocatalytic performance of MOF-808/Bi2WO6 with different proportions was investigated. The results show that 20%-MOF-808/Bi2WO6 composite photocatalyst has the best degradation effect on RhB, and the degradation rate after 60 min is increased by 25% compared with pure Bi2WO6, and the photocatalytic performance is significantly improved. The cyclic experiment showed that the degradation rate of RhB was not significantly reduced after repeated use for 5 times, so the photocatalyst had good stability. It can be concluded from the free radical trapping experiment that hole(h+) plays a major role in the catalytic process, hydroxyl radical(·OH) plays a certain synergistic role in the catalytic process, and superoxide radical(·O2-) has almost no influence on the catalytic process. |
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