Nanoparticle@Metal-Organic Frameworks as a Template for Hierarchical Porous Carbon Sponges.
作者： Daniel Salazar-Beltrán , Carlos Palomino Cabello , Jorge Luis Guzmán-Mar , Laura Hinojosa-Reyes , Gemma Turnes Palomino
关键词: Chemistry 、 Metal-organic framework 、 Extraction (chemistry) 、 Carbonization 、 Phthalate 、 Oxide 、 Imidazolate 、 Dibutyl phthalate 、 Chemical engineering 、 Nanoparticle
摘要: The preparation of hierarchical porous carbon sponges (HCS) from metal oxide nanoparticle@metal‐organic frameworks is reported. ZnO nanoparticles are partially converted to zeolitic imidazolate framework‐8 (ZIF‐8) crystals in presence n‐butylamine obtain ZnO@ZIF‐8 hybrids. After direct carbonization, followed by acidic etching, were submicrometric HCS. Due the high surface area and accessible porosity, combining micro‐ mesoporosity HCS, their application for extraction water pollutants was studied preparing HCS/polymer membranes, showed a efficiency fast (650 L m−2 h−1) removal plastic degradation by‐products (DBP, dibutyl phthalate. DEHP, bis(2‐n‐ethylhexyl)phthalate). DBP DEHP breakthroughs lower than 3 % after filtration 100 mL containing simultaneously both phthalates at concentration level (300 μg L−1, each). membranes reusable up 5 times, maintaining capacity, with relative errors 6 % DBP, <1 % DEHP.
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