Electro-catalytic membrane anode for dye removal from wastewater

Atomically-thin Schottky-like photo-electrocatalytic cross-flow membrane reactors for ultrafast remediation of persistent organic pollutants

“…The band gap values plateau at 3.4 eV as the thickness of the TiO 2 coating increased. Meanwhile, ZnO coatings at different deposition cycles and thicknesses show constant band gap of 3.2 eV, which proves that ZnO coatings were homogenous and free of any lattice imperfections that generally cause an increase or decrease in the band gap values of the same material across the series (Rabeh et al, 2014).…”

“…TiO 2 /Carbon membrane employed as anode for the electrocatalytic degradation of phenols showed 4 time increase of the kinetic constant with increase of residence time from 0.6 to 5.4 min (Wang et al, 2014). Another TiO 2 /Carbon membrane exhibited an increase of the COD removal rate from 49% to 78% of the MB dye solution as the residence time increased from 3 to 12 min (Qaseem et al, 2020).…”

Recent advances in electrocatalytic membrane for the removal of micropollutants from water and wastewater

“…Magnéli phase titanium (Ti 4 O 7 ) has been intensively studied in the field of EM in recent years due to its excellent chemical stability, high conductivity, and low production cost ( Gayen et al., 2018b ; Liang et al., 2018 ; Qaseem et al., 2020 ). Several studies have shown that the Ti 4 O 7 electrode can be used as an active electrode for the direct oxidation of pollutants or inactive electrode for the indirect oxidation of pollutants by · OH radicals.…”

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

“…Synthesizing of new, efficient, nature-based, or waste-originating adsorbents, kinetic, equilibrium and thermodynamic studies on biosorption [42][43][44][45][46] Coagulation/flocculation Synthesizing of new, efficient, nature-based, or waste-originating coagulants and acceleration of sedimentation by magnetic field [47][48][49][50][51][52] Electro-coagulation Ultra-sound assistance, nanofilms on cathodes and solar power usage [53][54][55][56][57][58] Electrochemical oxidation Air-diffusion cathodes, new materials and coatings of electrodes, membrane anode and electro-peroxone process [59][60][61][62][63][64] Membrane filtration Novel membrane materials, with addition of graphene, stabilization of membranes by biomacromolecules [65][66][67][68][69][70] Ozonation Catalyst addition, enhancement by ultrasound and hydrodynamic cavitation [71][72][73][74][75] O 3 /UV Photocatalytic membranes [76] O 3 /H 2 O 2 Proposal of the degradation mechanism, enhancement by electrolysis, heterogenous catalyst addition [77][78][79] UV/H 2 O 2…”