Enhancing the CO2 separation performance of composite membranes by the incorporation of amino acid-functionalized graphene oxide
文献类型：期刊论文
| 作者 | Xin, QP; Li, Z; Li, CD; Wang, SF; Jiang, ZY; Wu, H; Zhang, Y; Yang, J; Cao, XZ; Yang J(杨静)
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
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| 出版日期 | 2015 |
| 卷号 | 3期号:12页码:6629-6641 |
| 英文摘要 | Composite membranes are fabricated by incorporating amino acid-functionalized graphene oxide (GO-DA-Cys) nanosheets into a sulfonated poly(ether ether ketone) (SPEEK) polymer matrix. Graphene oxide (GO) nanosheets are functionalized with amino acids through a facile two-step method using dopamine (DA) and cysteine (Cys) in succession. The CO2 separation performance of the as-prepared membranes is evaluated for CO2/CH4 and CO2/N-2 systems. GO nanosheets increase more tortuous paths for larger molecules, enhancing the diffusivity selectivity. Amino acids with carboxylic acid and primary amine groups simultaneously enhance the solubility selectivity and reactivity selectivity. Accordingly, CO2 molecules can transport quickly due to the enhanced selectivity. The optimum separation performance is achieved at the GO-DA-Cys content of 8 wt% with selectivities of 82 and 115 for CO2/CH4 and CO2/N-2, respectively, and a CO2 permeability of 1247 Barrer, significantly surpassing the Robeson upper bound reported in 2008. Besides, the mechanical and thermal stabilities of the composite membranes are also improved compared with the pristine SPEEK membrane. |
| 学科主题 | Chemistry; Energy & Fuels; Materials Science |
| 类目[WOS] | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000351227300051 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228278]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Xin, QP,Li, Z,Li, CD,et al. Enhancing the CO2 separation performance of composite membranes by the incorporation of amino acid-functionalized graphene oxide[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(12):6629-6641. |
| APA | Xin, QP.,Li, Z.,Li, CD.,Wang, SF.,Jiang, ZY.,...&曹兴忠.(2015).Enhancing the CO2 separation performance of composite membranes by the incorporation of amino acid-functionalized graphene oxide.JOURNAL OF MATERIALS CHEMISTRY A,3(12),6629-6641. |
| MLA | Xin, QP,et al."Enhancing the CO2 separation performance of composite membranes by the incorporation of amino acid-functionalized graphene oxide".JOURNAL OF MATERIALS CHEMISTRY A 3.12(2015):6629-6641. |
入库方式： OAI收割
来源：高能物理研究所
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