Covalent organic frameworks derived carbon supported cobalt ultra-small particles: C O and Co-Nx complex sites activated peroxymonosulfate synergistically for efficient degradation of levofloxacin

Highly Efficient and Selective Degradation of Electron-Rich Organic Pollutants in a Co-CN/Peroxymonosulfate System via the Synergistic Interaction of Regulating the Active Site and Producing Singlet Oxygen

“…As shown in Figure d, X-ray (EDX) mapping of CoCN revealed the distribution of Co, N, C, and O. Co was confirmed to exist in the form of nanoparticles, and N species were abundant and uniformly distributed throughout the carbon substrate. In addition, the Co atoms and nitrogen atoms were adjacent in a partial region, indicating the formation of CoN x sites around the Co NPs. , …”

“…In addition, the Co atoms and nitrogen atoms were adjacent in a partial region, indicating the formation of CoN x sites around the Co NPs. 35,36 According to the XRD patterns in Figure 2a, all the samples exhibited a characteristic peak at 26.3°, which was attributed to the (002) facet of graphitic carbon (JCPDS 01-0640). 37 The diffraction peaks at 44.2°and 51.5°were attributed to the Codoped samples, corresponding to the Co(111) and Co(200) facets of the Co particles, respectively (JCPDS No.…”

“…•− , which further generates 1 O 2 either by self-decomposition or by reaction with water molecules (eqs 1-4). 35 In addition, Co 0 can react with PMS to produce Co 2+, which further reacts with PMS to produce O 2…”

Inverse opal manganese-doped tungsten trioxide as a high-performance Fenton-like photocatalyst for levofloxacin degradation

“…4. [41][42][43][44][45][46][47][48] The main pathways included depiperazinylation, demethylation, defluorination and decarboxylation. 41 P1 was formed through the ring-opening reaction of the piperazine ring of LVX, and P2 was formed by demethylation of P1 to give the products P3 and P4 through demethylation, destruction of the piperazine ring and defluorination.…”

Multifunctional Fe/Cu Dual-Single Atom Nanozymes with Enhanced Peroxidase Activity for Isoniazid Detection and Levofloxacin Degradation

“…In pathway I, LEV was oxidized to give L9, which was subsequently demethylated and subjected to radical attack on the piperazine ring to give L10 and L11. In pathway II, L1 and L2 were generated by direct attack of LEV to open the piperazine ring and generate methoxy groups, 55 and the fluorine in L2 was replaced by a hydroxyl group to give L3. 56 L4 was subsequently obtained by successive decarboxylation, decarboxylation, and depiperazinylation of L2, followed by defluorination, decarboxylation, and deamination to give L6.…”