Fenton micro-reactor on a bubble: A novel microbubble-triggered simultaneous capture and catalytic oxidation strategy for recalcitrant organic pollutant removal

Microstructured gas-liquid-(solid) interfaces: A platform for sustainable synthesis of commodity chemicals

“…For instance, perfluorooctanoic acid can be decomposed 3.3 times faster in a needle-plate pulsed discharge reactor incorporating microbubbles than in control oxidation experiments without microbubbles ( Table 2 , entry 15) ( 52 ). Recalcitrant organic pollutants in water can be oxidized by the Fenton reaction using microbubbles with an acceleration factor of 2.4 when compared with the reaction without microbubbles ( Table 2 , entry 16) ( 53 ). Yu and co-workers ( 54 ) conducted the decomposition of pollutants (e.g., phenol) by ozonation using air microbubbles (<50 μm) and conventional bubble aeration with macrobubbles (>1 mm).…”

Recent advances in carbon-based nanomaterials for the treatment of toxic inorganic pollutants in wastewater

“…During a biological removal process, the operational and capital cost is high and secondary sludge is produced. 128 The reaction rate and selectivity occur at slow rates during the electrochemical oxidation process, and high temperature and pressure are involved in the process. High energy is used in oxidation processes, and this is a complex process with high cost where the pollutant absorbs much of the UV light used in the treatment.…”

Synthesis of H2O2 to Self-Catalyzed Generation of •OH over ZnO/CuI/Cu Foam Electrode for the Self-Fenton Cleaning of Wastewater

“…1,2 Traditional Fenton technology is widely used in wastewater treatment because of its effectiveness and low cost. 3,4 However, the conventional Fenton technology still has many defects in practical application, such as the need for additional H 2 O 2 , large production of iron sludge, and narrow response range of pH value. 5,6 Here, a photoelectrocatalytic self-Fenton technology is proposed to avoid the drawbacks of conventional Fenton technology.…”

“…The deep purification of antibiotic wastewater has aroused widespread concern owing to the extensive use of antibiotics. , Traditional Fenton technology is widely used in wastewater treatment because of its effectiveness and low cost. , However, the conventional Fenton technology still has many defects in practical application, such as the need for additional H 2 O 2 , large production of iron sludge, and narrow response range of pH value. , Here, a photoelectrocatalytic self-Fenton technology is proposed to avoid the drawbacks of conventional Fenton technology. The technology utilizes a catalyst that self-generates H 2 O 2 in the presence of photoelectricity and then catalytically converts H 2 O 2 to hydroxyl radicals ( • OH) that degrade pollutants.…”