Superselective Hg(II) Removal from Water Using a Thiol-Laced MOF-Based Sponge Monolith: Performance and Mechanism
文献类型：期刊论文
| 作者 | Fu, Kaixing1,4; Liu, Xia5; Lv, Chunyu4; Luo, Jinming4; Sun, Mingxing3; Luo, Shenglian1; Crittenden, John C.2 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2022-02-15 |
| 卷号 | 56期号:4页码:2677-2688 |
| 关键词 | point-of-use metal-organic frameworks mercury removal adsorption mechanism |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.1c07480 |
| 通讯作者 | Luo, Jinming(jinming.luo@sjtu.edu.cn) |
| 英文摘要 | Point-of-use (POU) devices with satisfying mercury (Hg) removal performance are urgently needed for public health and yet are scarcely reported. In this study, a thiol-laced metal-organic framework (MOF)-based sponge monolith (TLMSM) has been investigated for Hg(II) removal as the POU device for its benchmark application. The resulting TLMSM was characterized by remarkable chemical resistance, mechanical stability, and hydroscopicity (>2100 wt %). Importantly, the TLMSM has exhibited high adsorption capacity (similar to 954.7 mg g(-1)), fast kinetics (k(f) similar to 1.76 x 10(-5) ms(-1)), broad working pH range (1-10), high selectivity (K-d > 5.0 x 10(7) mL g(-1)), and excellent regeneration capability (removal efficiency >90% after 25 cycles). The high applicability of TLMSM in real-world scenarios was verified by its excellent Hg(II) removal performance in various real water matrices (e.g., surface waters and industrial effluents). Moreover, a fixed-bed column test demonstrated that similar to 1485 bed volumes of the feeding streams (similar to 500 mu g L-1) can be effectively treated with an enrichment factor of 12.6, suggesting the great potential of TLMSM as POU devices. Furthermore, the principal adsorption complexes (e.g., single-layer -S-Hg-Cl and double-layer -S-Hg-O-Hg-Cl and -S-Hg-O-Hg-OH) formed during the adsorption process under a wide range of pH were synergistically and systematically unveiled using advanced tools. Overall, this work presents an applicable approach by tailoring MOF into a sponge substrate to achieve its real application in heavy metal removal from water, especially for Hg(II). |
| WOS关键词 | METAL-ORGANIC FRAMEWORK ; AQUEOUS-SOLUTION ; MERCURY REMOVAL ; SELECTIVE REMOVAL ; CONTINUOUS ADSORPTION ; EFFICIENT REMOVAL ; GRAPHITE OXIDE ; IONS ; HG2+ ; REDUCTION |
| 资助项目 | Shanghai Jiao Tong University[WH220416002] ; Brook Byers Institute for Sustainable Systems, Hightower Chair ; Georgia Research Alliance at the Georgia Institute of Technology |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000763099700057 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Shanghai Jiao Tong University ; Brook Byers Institute for Sustainable Systems, Hightower Chair ; Georgia Research Alliance at the Georgia Institute of Technology |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/172583]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Luo, Jinming |
| 作者单位 | 1.Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China 2.Georgia Inst Technol, Brook Byers Inst Sustainable Syst, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China 5.Qingdao Univ, Coll Chem & Chem Engn, Qingdao 266071, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Kaixing,Liu, Xia,Lv, Chunyu,et al. Superselective Hg(II) Removal from Water Using a Thiol-Laced MOF-Based Sponge Monolith: Performance and Mechanism[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022,56(4):2677-2688. |
| APA | Fu, Kaixing.,Liu, Xia.,Lv, Chunyu.,Luo, Jinming.,Sun, Mingxing.,...&Crittenden, John C..(2022).Superselective Hg(II) Removal from Water Using a Thiol-Laced MOF-Based Sponge Monolith: Performance and Mechanism.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(4),2677-2688. |
| MLA | Fu, Kaixing,et al."Superselective Hg(II) Removal from Water Using a Thiol-Laced MOF-Based Sponge Monolith: Performance and Mechanism".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.4(2022):2677-2688. |
入库方式： OAI收割
来源：地理科学与资源研究所
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