多重活性界面诱导金属有机框架功能化聚乳酸纳纤及气固分离应用

刘巧宾; 池永鹏; 孙禄; 李冬至; 范俊梅; 汪少振; 侯宇振; 李晓鹏; 尚武林; 罗明丰; 朱龙超; 俞昆; 范孟豹; 周猛; 徐欢

doi:10.11777/j.issn1000-3304.2026.26140

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多重活性界面诱导金属有机框架功能化聚乳酸纳纤及气固分离应用

研究论文 | 更新时间：2026-10-10

- 多重活性界面诱导金属有机框架功能化聚乳酸纳纤及气固分离应用
- Multiple-active-interface-directed Metal-organic framework Functionalization of Poly(lactic acid) Nanofibers for Gas-Solid Separation
- 高分子学报 2026年页码：1-16
- 作者机构：
  
  1.北华航天工业学院材料工程学院河北省热防护材料重点实验室廊坊 065000
  2. 中国矿业大学安全工程学院徐州 221116
  3. 中国矿业大学材料与物理学院徐州 221116
  4.核生化灾害防护化学国家重点实验室北京 102205
  5.连云港神鹰复合材料科技有限公司连云港 222069
  6. 中国矿业大学信息与控制工程学院徐州 221116
  7. 中国矿业大学机电工程学院徐州 221116
  8.徐州医科大学附属口腔医院口腔颌面外科徐州 221001
- 作者简介：
  
  E-mail: houyuzhen@cumt.edu.cn
  E-mail:drzhoumeng87@126.com
- 基金信息：
  
  国家重点研发项目(2024YFC3015003;2025YFE0219700);国家自然科学基金(基金号 52573054);江苏省自然科学基金(基金号 BK20253032);徐州市科学技术局卫生健康面上项目(KC25090);河北省教育厅科学研究项目(QN2021001);廊坊市科技局科学研究与发展计划项目(2024011035)
- DOI：10.11777/j.issn1000-3304.2026.26140
  中图分类号：
- CSTR：32057.14.GFZXB.2026.7670
- 收稿：2026-04-27，
  
  录用：2026-06-28，
  
  网络首发：2026-10-10，
- 稿件说明：
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刘巧宾, 池永鹏, 孙禄, 李冬至, 范俊梅, 汪少振, 侯宇振, 李晓鹏, 尚武林, 罗明丰, 朱龙超, 俞昆, 范孟豹, 周猛, 徐欢. 多重活性界面诱导金属有机框架功能化聚乳酸纳纤及气固分离应用. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26140.

Liu, Q. B.; Chi, Y. P.; Sun, L.; Li, D. Z.; Fan, J. M.; Wang, S. Z.; Hou, Y. Z.; Li, X. P.; Shang, W. L.; Luo, M. F.; Zhu, L. C.; Yu, K.; Fan, M. B.; Zhou, M.; Xu, H. Multiple-active-interface-directed metal-organic framework functionalization of poly(lactic acid) nanofibers for gas-solid separation. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26140.
刘巧宾, 池永鹏, 孙禄, 李冬至, 范俊梅, 汪少振, 侯宇振, 李晓鹏, 尚武林, 罗明丰, 朱龙超, 俞昆, 范孟豹, 周猛, 徐欢. 多重活性界面诱导金属有机框架功能化聚乳酸纳纤及气固分离应用. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26140. DOI： CSTR： 32057.14.GFZXB.2026.7670.

Liu, Q. B.; Chi, Y. P.; Sun, L.; Li, D. Z.; Fan, J. M.; Wang, S. Z.; Hou, Y. Z.; Li, X. P.; Shang, W. L.; Luo, M. F.; Zhu, L. C.; Yu, K.; Fan, M. B.; Zhou, M.; Xu, H. Multiple-active-interface-directed metal-organic framework functionalization of poly(lactic acid) nanofibers for gas-solid separation. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26140. DOI： CSTR： 32057.14.GFZXB.2026.7670.

摘要

有限空间可吸入颗粒物(PM)常伴有SO

等毒害气体，而传统净化材料存在流量低或环境适应性差等缺陷，亟需多功能集成分离材料. 以层层自组装构筑仿生铠甲化聚乳酸纳纤膜(LbL-APLA)，经聚多巴胺修饰与原位配位驱动的双金属有机框架晶体生长，兼具72.3%超高负载量、547 m

·g

-1

比表面积及丰富金属吸附位点. 在85 L·min

-1

高流速下，经尺寸筛分、静电吸附与分级孔道限域协同作用，对PM

0.3

过滤效率达96.7%，SO

吸附容量6.2 mmol·g

-1

，SO

选择性达6480. 此外，LbL-APLA具有高电活性表面，可构建自供电健康监测平台，破解高耐尘、高通透与选择性识别的权衡难题，为集成式空气净化与智能环保材料提供可借鉴的结构范式.

Abstract

Achieving the simultaneous removal of gas-solid pollutants composed of respirable particulate matter (PM) and toxic gases under harsh high-flow operating conditions remains a key technical bottleneck in personal protection and environmental remediation. In confined occupat

ional environments

PM frequently coexists with sulfur dioxide (SO

). However

many reported materials suffer from insufficient structural stability

poor interfacial compatibility

and limited selectivity under high-throughput and high-humidity conditions

thereby necessitating the development of multifunctionally integrated separation materials. Herein

a layer-by-layer self-assembly strategy was employed to construct a biomimetic armor-functionalized poly(lactic acid) nanofibrous membrane (LbL-APLA). Specifically

the membrane featured a polydopamine interlayer and

in situ

coordination‑grown bimetallic metal‑organic framework (BMOF) nanocrystals successively assembled onto the fiber surfaces. This hierarchical architecture imparted the composite membrane with an exceptionally high nanocrystal loading (72.3%)

a large specific surface area (547 m

·g

-1

)

and a high density of coordinatively unsaturated metal sites. To evaluate its performance under realistic conditions

tests were conducted under simulated high‑velocity airflow (85 L·min

-1

). Exploiting the synergistic mechanisms of size exclusion

electrostatic attraction

and graded pore confinement

the membrane attained an ultrafine PM

0.3

removal efficiency of 96.7%

a high SO

uptake of 6.2 mmol·g

-1

and an outstanding SO

IAST selectivity of 6480 in a mixed gas stream. In addition

the high surface electroactivity and signal transduction capability of the multifunctional membrane provided a versatile material platform for self-powered health-monitoring systems

thereby addressing the long-standing trade-off among high dust tolerance

high gas permeability

and selective molecular recognition under complex operating conditions. This study offers a new structural design paradigm and reliable technical support for the development of next-generation integrated air-purification systems and intelligent environmental materials.

关键词

Keywords

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