DataVXAdvanced MaterialsPaper
journal article·2023-12Open access

Engineering In Situ Catalytic Cleaning Membrane Via Prebiotic‐Chemistry‐Inspired Mineralization

Xiaobin Yang, Yajie Wen, Yangxue Li, Linlin Yan, Chuyang Y. Tang, Jun Ma, Seth B. Darling, Lu Shao

Advanced Materials· Volume 35· Issue 49
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Abstract

Abstract Pressure‐driven membrane separation promises a sustainable energy‐water nexus but is hindered by ubiquitous fouling. Natural systems evolved from prebiotic chemistry offer a glimpse of creative solutions. Herein, a prebiotic‐chemistry‐inspired aminomalononitrile (AMN)/Mn2+‐mediated mineralization method is reported for universally engineering a superhydrophilic hierarchical MnO2 nanocoating to endow hydrophobic polymeric membranes with exceptional catalytic cleaning ability. Green hydrogen peroxide catalytically triggered in‐situ cleaning of the mineralized membrane and enabled operando flux recovery to reach 99.8%. The mineralized membrane exhibited a 9‐fold higher recovery compared to the unmineralized membrane, which is attributed to active catalytic antifouling coupled with passive hydration antifouling. Electron density differences derived from the precursor interaction during mediated mineralization unveiled an electron‐rich bell‐like structure with an inner electron‐deficient Mn core. This work paves the way to construct multifunctional engineered materials for energy‐efficient water treatment as well as for diverse promising applications in catalysis, solar steam generation, biomedicine, and beyond.
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Research context

PolymersNanomaterialsCatalysis & surfaces

OpenAlex topics: Membrane Separation Technologies · Micro and Nano Robotics · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 P. R. China

School of Environment Harbin Institute of Technology Harbin 150090 P. R. China

Department of Civil Engineering the University of Hong Kong Pokfulam 999077 Hong Kong

Chemical Sciences and Engineering Division and Center for Molecular Engineering Argonne National Laboratory Lemont IL 60439 USA

Advanced Materials for Energy‐Water Systems Energy Frontier Research Center (AMEWS EFRC) Argonne National Laboratory Lemont IL 60439 USA

Funding

Harbin Institute of Technology · China Postdoctoral Science Foundation · Office of Science · National Postdoctoral Program for Innovative Talents · Science Fund for Distinguished Young Scholars of Heilongjiang Province · National Natural Science Foundation of China · Energy Frontier Research Centers

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