Fluoroalkyl-grafted methacrylate-PDMS membranes using fluoromonomer as a diluent for enhancing biobutanol pervaporation
| العنوان: | Fluoroalkyl-grafted methacrylate-PDMS membranes using fluoromonomer as a diluent for enhancing biobutanol pervaporation |
|---|---|
| المؤلفون: | Bo Chen, Tanlong Xue, Di Cai, Zhihao Si, Changwei Zhang, Peiyong Qin, Chang Liu, Shuai Yang, Yaqi Wang, Guozhen Li |
| المصدر: | Green Chemistry. 23:7053-7064 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Polydimethylsiloxane, Butanol, technology, industry, and agriculture, Methacrylate, Pollution, Diluent, Contact angle, chemistry.chemical_compound, Membrane, Chemical engineering, Polymerization, chemistry, Environmental Chemistry, Pervaporation |
| الوصف: | In bioalcohol production, alcohol-permselective membranes have an important role to play in the growing demand for biofuels, where polydimethylsiloxane (PDMS) membranes are considered as a benchmark of alcohol-permselective membranes. However, two key technical barriers still need to be addressed, i.e., (i) the long curing time and the use of toxic solvents hamper their large-scale application and (ii) the trade-off between pervaporation performance and anti-biofouling ability limits the separation of biobutanol from fermentation broths. To overcome these bottlenecks, in this study, a UV-polymerizable fluoromonomer (F-monomer) is introduced into a methacrylate-PDMS (MA-PDMS) membrane-forming system instead of toxic solvents. The green and ultrafast membrane preparation (31–72 s) via UV polymerization is realized. The results indicate that the fluoroalkyl groups –(CF2)6 of the F-monomer enhance the hydrophobicity of the membrane surface, yielding a high water contact angle of 112°. Compared with an MA-PDMS membrane, the as-prepared MA-PDMS-F membranes were found to have a simultaneously enhanced membrane flux (862–1216 g m−2 h−1) and separation factor (34–41) when used in the separation of a butanol/water binary solution. Importantly, the MA-PDMS-F membrane surface weakly interacts with microbes in the fermentation broth because of its much lower polarizability, which leads to an outstanding anti-biofouling ability. |
| تدمد: | 1463-9270 1463-9262 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2621fcf958387884db0121145c14b945 https://doi.org/10.1039/d1gc02212a |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........2621fcf958387884db0121145c14b945 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14639270 14639262 |
|---|