Heterostructured filler in mixed matrix membranes to coordinate physical and chemical selectivities for enhanced CO2 separation
文献类型：期刊论文
| 作者 | Cao XZ(曹兴忠) ; Zhang, N; Wu, H; Li, FC; Dong, SY; Yang, LX; Ren, YX; Wu, YZ; Wu, XY; Jiang, ZY
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| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 567页码:272-280 |
| 关键词 | Heterostructured filler Zeolite imidazolate framework-8 (ZIF-8) Layered double hydroxide (LDH) Mixed matrix membrane CO2 separation |
| ISSN号 | 0376-7388 |
| DOI | 10.1016/j.memsci.2018.09.044 |
| 文献子类 | Article |
| 英文摘要 | Mixed matrix membranes (MMMs) hold great promise in overcoming the tradeoff between membrane permeability and selectivity. The rational design of fillers to well coordinate physical and chemical selectivities remains challenging. Here, we explore a heterostructured filler by in-situ growth of ZIF-8 on LDH surface (ZIF-8@LDH), which was then embedded into Pebax to fabricate MMMs for CO2/CH4 separation. The proximity effect of the heterostructured filler endows MMMs with superior gas separation performance compared with the control MMMs containing single filler ZIF-8, LDH and dual fillers (where ZIF-8 and LDH are separately incorporated). On one hand, ZIF-8 and abundant hydroxyl groups on LDH afford favorable affinity toward CO2, significantly enhancing the physical selectivity of CO2/CH4. On the other hand, the oriented distribution of ZIF-8 on LDH elevates CO2 concentration around LDH and increases the efficiency of CO2 facilitated transport, leading to remarkably enhanced chemical selectivity. Particularly, the optimum separation performance is achieved for MMMs containing 2 wt% of ZIF-8@LDH with a CO2 permeability of 1307 Barrer and a CO2/CH4 selectivity of 31.6. The unique attributes of heterostructured filler may be extended to fabricate a variety of MMMs for high performance molecular separations. |
| 电子版国际标准刊号 | 1873-3123 |
| WOS关键词 | LAYERED DOUBLE HYDROXIDE ; FACILITATED TRANSPORT MEMBRANES ; CAPTURE PROPERTIES ; COMPOSITE MEMBRANES ; HYBRID MEMBRANES ; IONIC LIQUID ; ZINC ION ; PERFORMANCE ; NANOSHEETS ; FRAMEWORK |
| WOS研究方向 | Engineering ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000446328500025 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286380]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cao XZ,Zhang, N,Wu, H,et al. Heterostructured filler in mixed matrix membranes to coordinate physical and chemical selectivities for enhanced CO2 separation[J]. JOURNAL OF MEMBRANE SCIENCE,2018,567:272-280. |
| APA | 曹兴忠.,Zhang, N.,Wu, H.,Li, FC.,Dong, SY.,...&Cao, XZ.(2018).Heterostructured filler in mixed matrix membranes to coordinate physical and chemical selectivities for enhanced CO2 separation.JOURNAL OF MEMBRANE SCIENCE,567,272-280. |
| MLA | 曹兴忠,et al."Heterostructured filler in mixed matrix membranes to coordinate physical and chemical selectivities for enhanced CO2 separation".JOURNAL OF MEMBRANE SCIENCE 567(2018):272-280. |
入库方式： OAI收割
来源：高能物理研究所
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