The low-temperature NO2 removal by tailoring metal node in porphyrin-based metal-organic frameworks
文献类型：期刊论文
| 作者 | Shang, Shanshan4,5; Wen, Chengyan3; Yang, Chao2; Tian, Yuanmeng4,5; Wang, Chenguang1; Shang, Jin4,5 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-12-20 |
| 卷号 | 801页码:10 |
| 关键词 | Porphyrin-based MOFs Metal node NO2 adsorption Hydrogen bonding |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.149710 |
| 通讯作者 | Shang, Jin(jinshang@cityu.edu.hk) |
| 英文摘要 | Nitrogen dioxide (NO2) is the most toxic and prevalent form of nitrogen oxides (NOx) pollutant and its removal from ambient air is a pressing challenge. The state-of-the-art deNO(x) technologies such as selective catalytic reduction (SCR) can only work at elevated temperatures (>250-300 degrees C), but ineffective for the NOx removal under ambient conditions. The adsorptive removal of NO2 is an alternative approach to SCR, whose success depends on the design of stable adsorbents capable of selectively capturing NO2 with a highly reversible capacity. Here we synthesized and developed five porphyrin-based metal-organic frameworks (PMOFs) as robust ambient NO2 adsorbents, including three aluminum-based (Al-PMOF) isostructures, and two zirconium-based (ZrPMOFs) isostructures. Of them, Al-PMOF stands out to be the most promising candidate by showing the highest NO2 adsorption capacity (1.85 mmol/g), high stability, and good regenerability (retaining 87% capacity after five cycles of adsorption) at dry conditions. The NO2 adsorption capacity of Al-PMOF was approximately doubled (3.61 mmol/g) at wet conditions. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) revealed the NO2 adsorption mechanism - the hydrogen bonding occurs between bridging hydroxyl (-OH) (attached to the metal node) and NO2 molecules. Our work demonstrates that PMOFs are promising NO2 adsorbents and will provide guidance for designing robust and reusable adsorbents for efficiently removing NO2 at ambient temperature. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | MIXED OXIDES ; ADSORPTION ; ACID ; CAPTURE ; ADSORBENTS ; REDUCTION ; COPPER |
| 资助项目 | Science and Technology Innovation Commission of Shenzhen Municipality[JCYJ20180307123906004] ; Science and Technology Innovation Commission of Shenzhen Municipality[JCYJ20190808181003717] ; Research Grants Council of Hong Kong[CityU 21301817] ; Research Grants Council of Hong Kong[11215518] ; City University of Hong Kong[CityU 9667217] ; City University of Hong Kong[CityU 11308420] ; City University of Hong Kong[6000716] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000704388000010 |
| 出版者 | ELSEVIER |
| 资助机构 | Science and Technology Innovation Commission of Shenzhen Municipality ; Research Grants Council of Hong Kong ; City University of Hong Kong |
| 源URL | [http://ir.giec.ac.cn/handle/344007/35041]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Shang, Jin |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou, Peoples R China 2.Univ Hong Kong, Dept Civil Engn, Pokfulam, Hong Kong, Peoples R China 3.Southeast Univ, Sch Energy & Environm, Nanjing, Peoples R China 4.City Univ Hong Kong, Shenzhen Res Inst, 8 Yuexing 1st Rd,Shenzhen Hitech Ind Pk, Shenzhen, Peoples R China 5.City Univ Hong Kong, Sch Energy & Environm, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Shanshan,Wen, Chengyan,Yang, Chao,et al. The low-temperature NO2 removal by tailoring metal node in porphyrin-based metal-organic frameworks[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,801:10. |
| APA | Shang, Shanshan,Wen, Chengyan,Yang, Chao,Tian, Yuanmeng,Wang, Chenguang,&Shang, Jin.(2021).The low-temperature NO2 removal by tailoring metal node in porphyrin-based metal-organic frameworks.SCIENCE OF THE TOTAL ENVIRONMENT,801,10. |
| MLA | Shang, Shanshan,et al."The low-temperature NO2 removal by tailoring metal node in porphyrin-based metal-organic frameworks".SCIENCE OF THE TOTAL ENVIRONMENT 801(2021):10. |
入库方式： OAI收割
来源：广州能源研究所
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