|
| Ag2O/FACs复合材料的制备及其光催化性能 |
| Preparation and photocatalytic performance of Ag2O/FACs composites |
| 投稿时间：2019-06-19 |
| DOI： |
| 中文关键词: Ag2O 粉煤灰漂珠 Ag2O/FACs复合材料 亚甲基蓝降解 光催化性能 酸化改性 |
| 英文关键词: Ag2O fly ash cenosphere Ag2O/FACs composite methylene blue degradation photocatalytic performance acidification modification |
| 基金项目:国家自然科学基金资助项目(51779157)；武汉科技大学大学生科技创新基金资助项目(18ZRB221). |
| 作者 | 单位 | E-mail | | 张惠灵 | 武汉科技大学资源与环境工程学院,湖北 武汉,430081
武汉科技大学冶金矿产资源高效利用与造块湖北省重点实验室,湖北 武汉,430081 | 525455406@qq.com | | 陈润泽 | 武汉科技大学资源与环境工程学院,湖北 武汉,430081 | | | 龚洁 | 武汉科技大学资源与环境工程学院,湖北 武汉,430081
武汉科技大学冶金矿产资源高效利用与造块湖北省重点实验室,湖北 武汉,430081 | | | 蒋炘鑫 | 武汉科技大学资源与环境工程学院,湖北 武汉,430081 | | | 胡传智 | 武汉科技大学资源与环境工程学院,湖北 武汉,430081 | | | 石磊 | 武汉科技大学资源与环境工程学院,湖北 武汉,430081 | |
|
| 摘要点击次数: 3761 |
| 全文下载次数: 2814 |
| 中文摘要: |
| 以经过酸化刻蚀改性的粉煤灰漂珠(FACs)为催化剂载体制备Ag2O/FACs复合材料。借助SEM、XRD、FTIR、BET等对相关样品的物相结构及微观形貌进行表征,并通过亚甲基蓝(MB)溶液的光降解实验评价了所制复合材料的光催化性能。结果表明,尽管FACs改性前后的结构及化学组成差别不大,但酸化刻蚀处理能有效提高FACs的吸附性能；Ag2O/FACs复合材料在近红外光条件下对亚甲基蓝溶液的降解率可达97.5%,并具有较高的催化稳定性；Ag2O光生空穴在降解反应中起到重要作用。 |
| 英文摘要: |
| Fly ash cenospheres (FACs) were modified by acidification and etching,and then Ag2O/FACs composites were prepared by employing modified FACs as the catalyst support. The phase structure and morphology of the samples were characterized by SEM, XRD, FTIR, BET and so on, and the photocatalytic performance of as-prepared composites was evaluated by means of photocatalytic degradation of methylene blue solution. The results show that although the structures and chemical composition of FACs are not significantly different before and after modification, acidification and etching can effectively improve the adsorption property of FACs. The degradation rate of methylene blue solution catalyzed by Ag2O/FACs composites under near-infrared light condition can reach 97.5%,and the Ag2O/FACs composites also show good catalytic stability. Photogenerated holes of Ag2O play an important role in degradation. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
