| Environmental geochemistry of thioantimony: formation, structure and transformation as compared with thioarsenic | |
| Ye, Li; Jing, Chuanyong | |
| 2021-10-15 | |
| Source Publication | ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
 |
| ISSN | 0926-3373 |
| Volume | 297Pages:- |
| Abstract | 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. |
| Department | 环境化学与生态毒理学国家重点实验室 |
| Keyword | Water resistance Li+-K+OMS-2 Tunnels Ozone decomposition |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/46802 |
| Collection | 环境化学与生态毒理学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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):-. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Environmental geoche（859KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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