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Fabrication of Attapulgite Coated Membranes for Effective Separation of Oil‐in‐Water Emulsion in Highly Acidic, Alkaline, and Concentrated Salty Environments
Author(s) -
Li Jian,
Zhao Zhihong,
Shen Yongqian,
Feng Hua,
Yang Yaoxia,
Zha Fei
Publication year - 2017
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201700364
Subject(s) - membrane , emulsion , materials science , polyvinylidene fluoride , chemical engineering , leaching (pedology) , suspension (topology) , wastewater , fabrication , polymer , composite material , environmental engineering , chemistry , environmental science , medicine , biochemistry , alternative medicine , pathology , soil science , engineering , soil water , mathematics , homotopy , pure mathematics
Facile and eco‐friendly methods to fabricate novel materials for effective separation of oil‐in‐water emulsion in harsh conditions are urgently desired. Here, attapulgite (APT) coated polyvinylidene fluoride (PVDF) membranes with underwater superoleophobic property are fabricated by simply leaching APT suspension onto a PDVF membrane using a vacuum pump. More importantly, such membrane possesses outstanding separation capability with separation efficiency higher than 99.2% for oil‐in‐water emulsions not only in mild environments but also in highly acidic, alkaline, and concentrated salty environments. The outstanding chemical stability under harsh environments including strong acidic, alkaline, and concentrated salty conditions makes the membrane become a promising candidate for treatments of industrial wastewater containing emulsified oil/water mixtures in the future.