Ambient temperature NO2 removal by adsorption on robust DMOFs: Regulating water stability, acid stability, and NO2 capacity by methyl functionalization
文献类型：期刊论文
| 作者 | Shang, Shanshan1,2,3; Tian, Yuanmeng1,2; Yang, Chao4; Wang, Chenguang5; Chen, Xinyu3; Ye, Daiqi3; Shang, Jin1,2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 477页码:13 |
| 关键词 | NO 2 abatement DMOF Water/acid stability NO 2 adsorption mechanism |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2023.147255 |
| 通讯作者 | Shang, Jin(jinshang@cityu.edu.hk) |
| 英文摘要 | Nitrogen dioxide (NO2) is a dominant contributor to air pollution and urgently needs to be abated. The catalysisbased deNOx technologies can efficiently remove NO2 at elevated temperatures but fail to effectively deal with ambient NO2 pollution. Selective adsorption by solid porous adsorbents, especially metal-organic frameworks (MOFs), emerges as a promising strategy for ambient NO2 removal. To overcome the biggest challenge in developing low-temperature NO2 adsorbents today - poor stability and thus the inferior cyclable capacity, especially in the presence of water vapor, here we investigated the functionalization of a series of DMOFs with nonpolar methyl (-CH3) groups to regulate their water stability and NO2 adsorption capacity. Among these isoreticular DMOFs, the tetramethyl (TM) functionalized one (Ni-TM DMOF) exhibited a two-fold and 60-times increase in NO2 adsorption capacity under dry (2.2 mmol/g) and wet (1.8 mmol/g) conditions, respectively, over its counterpart without the TM groups (Ni-BDC DMOF). Careful structural characterizations attributed the elevated NO2 adsorption performance of DMOFs to the improved hydrophobicity induced by methyl group decoration under the wet condition. The combination of column breakthrough experiment, in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) study, and density functional theory (DFT) calculations revealed the NO2 adsorption mechanism under both dry and wet conditions. This work affords not only promising adsorbents for ambient NO2 removal but also new knowledge to guide the design of porous MOFs as robust adsorbents for acid gases capture. |
| WOS关键词 | METAL-ORGANIC FRAMEWORKS ; MIXED OXIDES ; FLUE-GAS ; ADSORBENTS ; DIOXIDE ; CAPTURE ; CARBON ; SO2 ; MOF |
| 资助项目 | Science and Technology Innovation Commission of Shenzhen Municipality[JCYJ20210324134006019] ; Research Grants Council of Hong Kong[CityU 11317722] ; Research Grants Council of Hong Kong[11310223] ; City University of Hong Kong ; National Natural Science Foundation of China[K5232480] ; South China University of Technology[CityU 11307321] ; [52300130] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001113704900001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Science and Technology Innovation Commission of Shenzhen Municipality ; Research Grants Council of Hong Kong ; City University of Hong Kong ; National Natural Science Foundation of China ; South China University of Technology |
| 源URL | [http://ir.giec.ac.cn/handle/344007/40311]  |
| 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.City Univ Hong Kong, Shenzhen Res Inst, 8 Yuexing 1st Rd,Shenzhen Hitech Ind Pk, Shenzhen, Peoples R China 2.City Univ Hong Kong, Sch Energy & Environm, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China 3.South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Peoples R China 4.Univ Hong Kong, Dept Civil Engn, Pokfulam, Hong Kong, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Shanshan,Tian, Yuanmeng,Yang, Chao,et al. Ambient temperature NO2 removal by adsorption on robust DMOFs: Regulating water stability, acid stability, and NO2 capacity by methyl functionalization[J]. CHEMICAL ENGINEERING JOURNAL,2023,477:13. |
| APA | Shang, Shanshan.,Tian, Yuanmeng.,Yang, Chao.,Wang, Chenguang.,Chen, Xinyu.,...&Shang, Jin.(2023).Ambient temperature NO2 removal by adsorption on robust DMOFs: Regulating water stability, acid stability, and NO2 capacity by methyl functionalization.CHEMICAL ENGINEERING JOURNAL,477,13. |
| MLA | Shang, Shanshan,et al."Ambient temperature NO2 removal by adsorption on robust DMOFs: Regulating water stability, acid stability, and NO2 capacity by methyl functionalization".CHEMICAL ENGINEERING JOURNAL 477(2023):13. |
入库方式： OAI收割
来源：广州能源研究所
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