Environmental geochemistry of thioantimony: formation, structure and transformation as compared with thioarsenic
文献类型：期刊论文
| 作者 | Ye, Li; Jing, Chuanyong |
| 刊名 | ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
 |
| 出版日期 | 2021-10-15 |
| 卷号 | 297页码:- |
| 关键词 | Water resistance Li+-K+OMS-2 Tunnels Ozone decomposition |
| ISSN号 | 0926-3373 |
| 英文摘要 | OMS-2-based catalysts hold the promise of practical applications in ozone decomposition for their excellent activity, yet improvement of water resistance property remains challenging. Here, we reported an innovative Li-K-OMS-2 catalyst which possessed specific non-oxygen vacancy sites for H2O adsorption in the tunnel framework. This catalyst showed the decrease of only similar to 10 % of ozone conversion after reaction for 6 h under the RH of 90 %, the initial ozone concentration of 45 ppm and GHSV of 660,000h(-1) at 25 degrees C, which was superior to the currently documented MnO2-based catalysts. Both physiochemical characterization and DFT calculations revealed that the excellent water resistance property of Li-K-OMS-2 could be attributed to the formation of designed novel non-oxygen vacancy sites for H2O adsorption, which effectively alleviated the catalyst deactivation caused by non-dissociative adsorption of H2O on oxygen vacancies. The findings represented a critical step towards the rational design and synthesis of high water-resistant catalyst for ozone decomposition. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46802]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Shandong Univ, Sch Environm Sci & Engn, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Li,Jing, Chuanyong. Environmental geochemistry of thioantimony: formation, structure and transformation as compared with thioarsenic[J]. ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,2021,297:-. |
| APA | Ye, Li,&Jing, Chuanyong.(2021).Environmental geochemistry of thioantimony: formation, structure and transformation as compared with thioarsenic.ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,297,-. |
| MLA | Ye, Li,et al."Environmental geochemistry of thioantimony: formation, structure and transformation as compared with thioarsenic".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 297(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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