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PEG改性蛭石成膜的制备及CO2分离性能研究

作者：周慧，李红英，李奕帆

单位：郑州大学化工学院，郑州 450001

关键词： CO2捕集；蛭石；层状膜；传递通道；聚乙二醇

DOI号： 10.16159/j.cnki.issn1007-8924.2025.06.004

分类号： TQ028.8

出版年,卷(期):页码： 2025,45(6):36-44

摘要：

层状膜因其独特的层间通道和传质特性而备受关注。本研究以蛭石为主体材料，通过插层或接枝聚乙二醇（PEG）的方法调控其层间通道及CO2分离性能。研究表明，采用共价接枝PEG的蛭石进行制膜，其渗透性能与机械稳定性均优于PEG直接插层制备的蛭石膜。在25 ℃、0.2 MPa和干态条件下，优选膜的CO2渗透速率为1 489 GPU，CO2/N2选择性为23.6。

Lamellar membranes have attracted much attention due to their unique interlaminar channels and mass transfer properties. In this study, vermiculite (Vr) was used as the main material,and its interlaminar channels and CO2 separation performance were controlled by intercalation or grafting polyethylene glycol (PEG). The vermiculite membranes with covalently grafted PEG were found to show better permeability and mechanical stability than those with physcially intercalated PEG. The optimal membrane exhibited a CO2 permeation flux of 1 489 GPU and a CO2/N2 selectivity of 23.6 at 25 ℃,0.2 MPa under dry conditions.

基金项目：

河南省重点研发专项（241111232200）

作者简介：

周慧（1999-），女，河南焦作人，硕士研究生，主要研究方向为膜分离技术.

参考文献：

[1]D′alessandro D M, Smit B, Long J R. Carbon dioxide capture: Prospects for new materials[J]. Angew Chem Int Ed, 2010, 49(35):6058-6082.
[2]王轶文, 单衍雪, 刘丙萍. 膜分离技术研究进展[J]. 山东化工, 2021, 50(24):62-63,66.
[3]Wang J, Zhou H, Li S, et al. Selective ion transport in two-dimensional lamellar nanochannel membranes[J]. Angew Chem Int Ed, 2023, 62(19):2-22.
[4]Liu G,Jin W,Xu N.Two-dimensional-material membranes:a new family of high-performance separation membranes[J]. Angew Chem Int Ed, 2016, 55(43):13384-13397.
[5]Chen D, Ying W, Guo Y, et al. Enhanced gas separation through nanoconfined ionic liquid in laminated MoS2 membrane[J]. ACS Appl Mater Interfaces, 2017, 9(50):44251- 44257.
[6]熊成荣, 陈彦, 汤淼,等. 二维蛭石纳米片的制备及其环境吸附功能的研究进展[J]. 无机盐工业, 2024, 56(8):19-26.
[7]Wyatt B C, Rosenkranz A, Anasori B. 2D MXenes: Tunable mechanical and tribological properties[J]. Adv Mater, 2021, 33(17):1-15.
[8]景宏, 臧毅华, 罗林军,等. 改性石墨烯材料掺杂聚酰亚胺制备混合基质膜分离CO2/N2[J]. 膜科学与技术, 2021, 41(3):98-104.
[9]段翠佳, 曹义鸣, 介兴明,等. 金属有机骨架材料／聚酰亚胺混合基质膜的制备及气体分离性能[J]. 高等学校化学学报, 2014, 35(7):1584-1589.
[10]程荣, 姜培文, 夏锦程,等. 共价有机骨架材料在膜分离领域的应用进展[J]. 膜科学与技术, 2022, 42(5):154-163.
[11]郑梦娇, 刘壮, 谢锐,等. 二维蛭石膜的酸改性及性能研究[J]. 膜科学与技术, 2023, 43(5):58-64.
[12]杨磊鑫.二维材料基碳捕集膜的通道构筑、调控及分离性能强化[D]. 天津: 天津大学, 2020.
[13]Zhu Y, Cheng J, Xu X,et al. Using polyethylene glycol to promote nannochloropsis oceanica growth with 15 vol%CO2[J]. Sci Total Environ, 2020, 720:137598.
[14]Lee C S,Moon J,Park J T,et al.Engineering CO2-philic pathway via grafting poly (ethylene glycol) on graphene oxide for mixed matrix membranes with high CO2 permeance[J]. Chem Eng J, 2023, 453:139818.
[15]Wang S,Xie Y,He G,et al.Graphene oxide membranes with heterogeneousnanodomains for efficient CO2 separations[J]. Angew Chem Int Ed, 2017, 56(45):14246-14251.
[16]Luo W, Niu Z, Mu P, et al. MXene/poly (ethylene glycol)mixed matrix membranes with excellent permeance for highly efficient separation of CO2/N2 and CO2/CH4[J]. Colloid Surface A, 2022, 640:128481.
[17]徐北瑶, 王体健, 李树,等. “双碳”目标对我国未来空气污染和气候变化的影响评估[J]. 科学通报, 2022, 67(8):784-794.
[18]白永秀, 鲁能, 李双媛. 双碳目标提出的背景,挑战,机遇及实现路径[J]. 中国经济评论, 2021, 5:10-13.
[19]Tian M, Wang L, Wang J, et al. A two-dimensional lamellar vermiculite membrane for precise molecular separation and ion sieving[J]. ACS Sustain Chem Eng, 2022, 10(3):1137-1148.
[20]Zheng Y, Zhou Z, Jiao M, et al. Lamellar membrane with orderly aligned glycine molecules for efficient proton conduction[J]. J Membr Sci, 2023, 672:121433.
[21]Feng X F, Yu Z X,Long R X.Polydopamine intimate contacted two-dimensional/two-dimensional ultrathin nylon basement membrane supported RGO/PDA/MXene composite material for oil-water separation and dye removal[J]. Sep Purif Technol, 2020,247:116945.
[22]闫志昆. 层状膜CO2传递通道可控构建与离子传递机制研究[D]. 郑州: 郑州大学, 2017.
[23]Li S H , Zhang K M , Liu C L, et al. Nanohybrid Pebax/PEGDA-GPTMS membrane with semi-interpenetrating network structure for enhanced CO2 separations[J]. J Membr Sci, 2023, 674:121516.
[24]Jia Y Y, Shi F, Li H Y, et al. Facile ionization of the nanochannels of lamellar membranes for stable ionic liquid immobilization and efficient CO2 separation[J]. ACS Nano, 2022, 16(9):14379-14389.
[25]张皓玥, 王萌萌, 张祥坤. 蛭石/丁腈橡胶复合材料的制备及其性能研究[J]. 塔里木大学学报, 2025, 37(2): 23-30.

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