| 王文琴,赵玉宝.Ag/BiVO4的制备及其光催化降解盐酸四环素的性能[J].南华大学学报(自然科学版),2022,(4):52~56.[WANG Wenqin,ZHAO Yubao.Preparation of Ag/BiVO4 Composites and their Photocatalytic Performance for Tetracycline Degradation[J].Journal of University of South China(Science and Technology),2022,(4):52~56.] |
| Ag/BiVO4的制备及其光催化降解盐酸四环素的性能 |
| Preparation of Ag/BiVO4 Composites and their Photocatalytic Performance for Tetracycline Degradation |
| 投稿时间：2022-02-28 |
| DOI： |
| 中文关键词: Ag/BiVO4 光催化 可见光 四环素 |
| 英文关键词:Ag/BiVO4 photocatalytic visible light tetracycline hydrochloride |
| 基金项目:能源与环境光催化国家重点实验室开放课题(SKLPEE-KF201706) |
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| 中文摘要: |
| 通过一步水热法合成Ag/BiVO4复合材料,采用X射线衍射、扫描电镜等分析其结构及形貌等物性特征,并于可见光下评价其光催化降解盐酸四环素的性能,实验结果表明,Ag的引入可显著提高BiVO4的光催化性能:Ag/BiVO4(物质的量之比为Ag∶Bi=1∶15)具有最佳的降解活性,其光催化降解盐酸四环素反应的速率常数为纯BiVO4的2.5倍。电化学交流阻抗测定结果显示,Ag的引入可有效降低BiVO4材料的电化学阻抗,有利于光生载流子的分离,进而可提高其光催化性能。 |
| 英文摘要: |
| Ag/BiVO4 composites were prepared by one-step hydrothermal method. The structural and morphological characteristics were analyzed by XRD andSEM techniques. Then the photocatalytic performance of tetracycline hydrochlo-ride degradation was evaluated under visible light. Experimental results show t-hat the introduction of Ag can significantly improve the photocatalytic perform-ance of BiVO4. Ag/BiVO4(Ag∶Bi=1∶15) gives the best photocatalytic activity, itsrate constant of photocatalytic degradation of tetracycline hydrochloride was 2.5 times that of pure BiVO4. EIS results show that the introduction of Ag can e-ffectively reduce the electrochemical impedance of BiVO4 material, which is b-eneficial to the separation of photogenerated carriers. As a result, the introduction of Ag makes Ag/BiVO4 a promising photocatalyst for photocatalytic degra-dation of tetracycline hydrochloride. |
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