Efficient Interception of Particle Matters by a Low-Pressure-Drop Aerogel with a Fluffy 3D Hierarchically Fibrous Framework of Collagen Fibers Integrated with Metal–Organic Frameworks

IF 3.8 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2025-05-23 DOI:10.1021/acs.iecr.5c00249

Jie Liang, Yujia Wang, Hanzhong Xiao, Xinman Li, Yang Shi, Xin Huang

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Abstract

Size-sieving interception of particulate matter (PM) at low pressure drops remains a challenging issue since the accumulation of PMs inevitably blocks the size-sieving channels and causes serious contamination. Herein, we reported a low-pressure-drop aerogel featured with a fluffy 3D hierarchically fibrous framework, which was fabricated by the self-assembly of collagen fibers with the insitu growth of zeolite imidazolate framework (ZIF-8) on surface. For the as-prepared CFs@ZIF-8 composite aerogel, ZIF-8 worked as size-sieving site to guarantee exceptional interception efficiency to PMs, and notably, the fluffy 3D hierarchically fibrous framework served as efficient pathway to enable directional flow of the airstream at low pressure drop. As demonstrated, the high-performance interceptions to different PMs were accomplished, with the interception efficiency of 99.53%, 99.72%, 99.77%, 99.89%, 99.96% and 99.93% for PM_0.3, PM_0.5, PM_1.0, PM_2.5, PM_5.0 and PM₁₀ at the low pressure drop of 40 Pa. A long-term interception capability was also manifested.

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一种低压降气凝胶，具有蓬松的胶原纤维三维分层结构框架和金属有机框架

在低压降条件下，颗粒物质（PM）的筛分拦截仍然是一个具有挑战性的问题，因为PM的积累不可避免地阻塞了筛分通道并导致严重的污染。本文报道了一种低压降气凝胶，其特征是具有蓬松的三维分层纤维框架，其由胶原纤维自组装而成，表面生长咪唑酸沸石框架（ZIF-8）。对于制备的CFs@ZIF-8复合气凝胶，ZIF-8作为筛分部位，保证了对pm的卓越拦截效率，值得注意的是，蓬松的3D分层纤维框架作为有效途径，使气流在低压降下定向流动。结果表明，在低压降为40 Pa时，对PM0.3、PM0.5、PM1.0、PM2.5、PM5.0和PM10的拦截效率分别为99.53%、99.72%、99.77%、99.89%、99.96%和99.93%。还显示了长期拦截能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.