Highly Biocompatible, Underwater Superhydrophilic and Multifunctional Biopolymer Membrane for Efficient Oil–Water Separation and Aqueous Pollutant Removal
| Autor: | Baoliang Peng, Carlos E. Mejia, Pingmei Wang, Dali Huang, He Lipeng, Zhengdong Cheng, Minxiang Zeng, Ian Echols, Jianhui Luo, Shijun Lei, M. Sam Mannan, Lecheng Zhang, Ling Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Pollutant
Aqueous solution Biocompatibility Renewable Energy Sustainability and the Environment Chemistry General Chemical Engineering Metal ions in aqueous solution 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Membrane Chemical engineering Wastewater engineering Environmental Chemistry Sewage treatment Biopolymer 0210 nano-technology |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:3879-3887 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.7b04219 |
| Popis: | Conventional wastewater treatment systems generally require multiple steps and complex procedures to remove aqueous pollutants and oil contaminants from polluted water. Herein, we fabricate an underwater superoleophobic membrane by cross-linking konjac glucomannan on pristine fabrics, demonstrating that the concept of oil–water separation and the principle of aqueous pollutant removal can be integrated. Such biopolymer-modified fabric not only separates oil–water mixtures with high efficiency (up to 99.9%), but also exhibits the intriguing characteristic of removing water-soluble pollutants (including polyaromatic dyes and heavy metal ions). As a proof of concept, the synthetic wastewater purified with biopolymer membranes was used to cultivate and irrigate pinto beans, causing no observable deleterious effect on seed germination and growth. These results further confirm the biocompatibility and effectiveness of biopolymer membranes, offering an encouraging solution to challenges including wastewater trea... |
| Databáze: | OpenAIRE |
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