Carbon nanotube filter functionalized with MIL-101(Fe) for enhanced flow-through electro-Fenton

Peroxymonosulfate Activation by Photoelectroactive Nanohybrid Filter towards Effective Micropollutant Decontamination

“…The above results indicated that a more negative potential is favorable to boost the TC degradation efficiency [12]. Nevertheless, further decreasing the applied voltage to −2.5 V only led to a decreased TC removal efficiency of 83.3% (k = 0.082 min −1 ), possibly due to the occurrence of other side reactions (e.g., hydrogen generation reaction) that decrease the current efficiencies [31]. The applied voltage is critical for the cycling of Fe 3+ /Fe 2+ pairs of the Fe-MOF [30].…”

Electro-Fenton-Based Membrane System for Organic Micropollutant Removal: New Trend and Prospect

“…In a recent study, Dai et al developed an electrochemical carbon nanotube filter modified with MIL-101 (Fe) as a functional flow-through electrode in an EFM system. 75 The electrochemical membrane was found to be stable, possessing a large surface area and a high conductive network due to the induction of MIL-101 (Fe) on the CNT surface. The flow-through design of the membrane increased hydroxyl radical generation rate under the electric field due to the acceleration of Fe 3+ /Fe 2+ circulation, compared to a conventional batch reactor.…”

“…(Figure a) These carbon-based membranes are typically prepared using the vacuum filtration method . The key technology involves synthesizing carbon materials or loading Fenton reagents (including Fe-based, ,,, Mn-based, Ti-based, MOF, and noble metal on the surface of commercial carbons, , such as carbon nanotubes and graphene. Jiang et al successfully developed a GO–COO Fe 3+ -modified EFM system, which demonstrated an 8.8-fold improvement in mass transfer and attained 5-time higher removal rates compared to batch electro-Fenton processes.…”

“…MOFs are emerging materials that have demonstrated great potential in various fields due to their high specific area, tailored porosity, tunable properties, and structure/compositional flexibility. In a recent study, Dai et al developed an electrochemical carbon nanotube filter modified with MIL-101 (Fe) as a functional flow-through electrode in an EFM system . The electrochemical membrane was found to be stable, possessing a large surface area and a high conductive network due to the induction of MIL-101 (Fe) on the CNT surface.…”

Improved visible light photocatalytic nitrogen fixation activity using a FeII-rich MIL-101(Fe): breaking the scaling relationship by photoinduced FeII/FeIII cycling

“…Most of the Fe II content of the MOF material is formed at high temperatures 21,32,33 and the Fe II /Fe III cycle requires an external energy source, such as an electric field. 34…”