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Eco-friendly sorbent of bacterial cellulose/metal–organic framework composite membrane for effective bisphenol a removal
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-08-31 , DOI: 10.1177/15280837211041769
Yue Sun 1 , Xin Li 1 , Dawei Li 2 , Huizhen Ke 3 , Qufu Wei 1, 3
Affiliation  

Environmental hormones such as bisphenol A have attracted enormous attention due to their potential threat to humans and environment. Herein, we synthesized a BC/MIL-53 (Al)-F127 composite membrane by the vacuum filtration method with a mesostructure metal–organic framework MIL-53 (Al)-F127 and bacterial cellulose as the substrate. The BC/MIL-53 (Al)-F127 composite membrane exhibited efficient adsorption of bisphenol A in aqueous solution. The results exhibited that 94% of bisphenol A could be adsorbed in approximately 120 min, and the equilibrium sorption amounts of bisphenol A reached approximately 8.3 mg/g. Meanwhile, the mechanism of adsorption was explored. The optimum pH and temperature for the adsorption of bisphenol A were 6 and 40°C, respectively. The removal efficiency of bisphenol A was maintained at 90% after five repeated cycles, indicating the advantage to separate freely without a complex filtration system. The results of adsorption indicated that the BC/MIL-53 (Al)-F127 membrane has great potential in the aspect of the sewage treatment as a prospective sorbent.



中文翻译:

细菌纤维素/金属-有机骨架复合膜的环保吸附剂有效去除双酚a

双酚A等环境激素因其对人类和环境的潜在威胁而引起了极大的关注。在此,我们以细观结构金属-有机骨架 MIL-53 (Al)-F127 和细菌纤维素为底物,通过真空过滤法合成了 BC/MIL-53 (Al)-F127 复合膜。BC/MIL-53(Al)-F127复合膜表现出对水溶液中双酚A的高效吸附。结果表明,约120 min内可吸附94%的双酚A,双酚A的平衡吸附量达到约8.3 mg/g。同时,对吸附机理进行了探索。吸附双酚 A 的最佳 pH 值和温度分别为 6 和 40°C。5次重复循环后双酚A去除率保持在90%,表明无需复杂过滤系统即可自由分离的优势。吸附结果表明BC/MIL-53(Al)-F127膜作为一种潜在的吸附剂在污水处理方面具有很大的潜力。

更新日期:2021-08-31
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