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MOF Derived Carbon Nanofibers Substrate Supported Polymeric Ultrafiltration Membrane for Efficient Removal of Trace Organic Contaminants
ACS ES&T Water ( IF 4.8 ) Pub Date : 2022-11-09 , DOI: 10.1021/acsestwater.2c00471 Yingpeng Yang 1 , Jia Xie 1 , Yiyuan Yao 1 , Junwen Qi 1 , Yujun Zhou 1 , Zhigao Zhu 1 , Xiuyun Sun 1 , Jiansheng Li 1
ACS ES&T Water ( IF 4.8 ) Pub Date : 2022-11-09 , DOI: 10.1021/acsestwater.2c00471 Yingpeng Yang 1 , Jia Xie 1 , Yiyuan Yao 1 , Junwen Qi 1 , Yujun Zhou 1 , Zhigao Zhu 1 , Xiuyun Sun 1 , Jiansheng Li 1
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Efficient removal on trace organic contaminants (TrOCs) from a complicated water matrix is highly desired to improve the quality of discharged wastewater effluents. In this work, a sequential separation-catalysis membrane (SSCM) was designed by fabricating a poly(ether sulfone) ultrafiltration (UF) membrane via a traditional nonsolvent induced phase separation process on Co3O4/C nanofibers substrate, which was derived from electrospinning nanofibers of polyacrylonitrile/pyrolytic zeolite imidazolate frameworks-67. The resultant SSCM successfully integrated the functions of separation and catalysis, and enhanced the mass-transfer in the catalytic area. Notably, the SSCM exhibited above 99% catalytic degradation of bisphenol A (BPA) under the flux of 122.8 L m–2 h–1 and the unique design of integrated separation and catalysis dual function layers significantly accelerated the kinetics of BPA degradation, which was 19.77 times higher than that of series connected processes of UF membrane and bare catalytic substrate (BCS). Furthermore, as demonstrated by filtering the water matrices containing humic acid and TrOCs (BPA), the BPA removal efficiency of SSCM had increased by 20% and 73% and continued to grow compared to the catalysis followed by ultrafiltration mode and BCS. This work provides a promising design on enhanced removal of TrOCs for water purification and wastewater reuse.
中文翻译：
MOF 衍生的碳纳米纤维基材支撑的聚合物超滤膜可有效去除痕量有机污染物
为了提高废水排放的质量，迫切需要从复杂的水基质中有效去除痕量有机污染物（TrOC）。在这项工作中，通过传统的非溶剂诱导相分离工艺在Co 3 O 4 /C纳米纤维基底上制造聚醚砜超滤（UF）膜，设计了顺序分离催化膜（SSCM），该膜源自聚丙烯腈/热解沸石咪唑酯骨架静电纺丝纳米纤维-67。由此产生的SSCM成功地整合了分离和催化功能，并增强了催化区域的传质。值得注意的是，SSCM 在 122.8 L m –2通量下对双酚 A (BPA) 的催化降解率超过 99%h –1和集成分离催化双功能层的独特设计显着加速了BPA降解动力学，比UF膜和裸催化基质（BCS）串联过程提高了19.77倍。此外，通过过滤含有腐殖酸和TrOCs（BPA）的水基质证明，与催化超滤模式和BCS相比，SSCM的BPA去除效率分别提高了20%和73%，并且持续增长。这项工作为水净化和废水回用强化去除 TrOC 提供了一种有前途的设计。
更新日期：2022-11-09
中文翻译：
MOF 衍生的碳纳米纤维基材支撑的聚合物超滤膜可有效去除痕量有机污染物
为了提高废水排放的质量，迫切需要从复杂的水基质中有效去除痕量有机污染物（TrOC）。在这项工作中，通过传统的非溶剂诱导相分离工艺在Co 3 O 4 /C纳米纤维基底上制造聚醚砜超滤（UF）膜，设计了顺序分离催化膜（SSCM），该膜源自聚丙烯腈/热解沸石咪唑酯骨架静电纺丝纳米纤维-67。由此产生的SSCM成功地整合了分离和催化功能，并增强了催化区域的传质。值得注意的是，SSCM 在 122.8 L m –2通量下对双酚 A (BPA) 的催化降解率超过 99%h –1和集成分离催化双功能层的独特设计显着加速了BPA降解动力学，比UF膜和裸催化基质（BCS）串联过程提高了19.77倍。此外，通过过滤含有腐殖酸和TrOCs（BPA）的水基质证明，与催化超滤模式和BCS相比，SSCM的BPA去除效率分别提高了20%和73%，并且持续增长。这项工作为水净化和废水回用强化去除 TrOC 提供了一种有前途的设计。
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