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| 超细银粒子在氮化碳表面的可控生长及其光催化性能 |
| Study on controllable growth and photocatalytic properties of ultrafine silver particles on the surface of carbon nitride |
| Received:May 13, 2022 |
| DOI： |
| 中文关键词: 氮化碳 超细银粒子 可控生长 光催化 降解四环素 |
| 英文关键词: carbon nitride ultrafine silver particles controllable growth photocatalysis tetracycline degradation |
| 基金项目:江苏省高等学校基础科学(自然科学)重大项目(21KJA610003) |
| Author Name | Affiliation | | LI Zonglin | School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China | | ZHANG Hui | School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China | | YANG Qing | School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China | | DU Yongxu | School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China | | CAO Xin | School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China | | SUN Jianhua | School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China |
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| 中文摘要: |
| 通过优化银的负载量和还原过程，使单质银以超细粒子的形式，原位生长在氮化碳表面，制备了光催化剂3%Ag/CN。3%Ag/CN中高度分散的超细银粒子能够高效捕获光生电子，促进光生电荷的分离，同时还能提供更多的活性位点。因此，3%Ag/CN具有优异的光催化活性。光催化降解四环素实验表明，3%Ag/CN的准一级反应动力学速率常数k达到了0.0122 min-1，是负载银纳米颗粒氮化碳(3%AgNP/CN)的1.72倍。 |
| 英文摘要: |
| In-situ growth of ultrafine Ag particles on the surface of carbon nitride has been realized by optimizing Ag loading and reduction process. In 3%Ag/CN obtained, the highly dispersed ultrafine Ag particles efficiently trap photogenerated electrons, promote the charge separation, and also provide more active sites. Therefore, 3%Ag/CN has an improved photocatalytic activity. The photocatalytic tetracycline degradation reaction rate of 3%Ag/CN was up to 0.0122 min-1, which was 1.72 times that of Ag nanoparticles loaded carbon nitride (3%AgNP/CN). |
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