Magnetically induced controlled release from glucose-modified liposomes loaded with Fe3O4 nanoparticles

Low Concentration of Peroxymonosulfate Triggers Dissolved Oxygen Conversion over Single Atomic Fe–N3O1 Sites for Water Decontamination

“…As shown in Figure 2h, the Fe‐CN 0.01 only presents a small signal at a g value of 2.003, which is also observed in Fe‐CN 0.05 (inset of Figure 2h). Besides, the Fe‐CN 0.05 exhibits a strong low‐field signal at g = 2.17, which is attributed to the exchange coupling between Fe 2+ or Fe 3+ with O − and/or the flip‐flop resonant state between Fe 3+ O 2− and Fe 2+ O − , [ 45 ] implying the intense interaction between Fe and O atoms. With reference to Fe‐CN 0.1 , this signal delivers much stronger intensity and continues to shift toward a lower magnetic field with a g ‐factor around 2.25, which suggests the interaction of the Fe atom with the O atom is reinforced more significantly to form the iron oxide, in line with the above XRD and FTIR results that the higher amount of iron acetylacetonate acting as the iron source can produce iron oxides in Fe‐CN 0.1 .…”