Synthesis of hollow Co-N/C nanocage with superior oxidase-like activity for colorimetric sensing analysis and catalytic mechanism

Introduction of electron-deficient unit in resorcinol-formaldehyde resin to construct donor–acceptor conjugated polymer for enhancing photocatalytic H2O2 production

“…2e, the high-resolution N 1s XPS spectrum can be divided into two peaks centered at 406.1 and 399.7 eV, which were assigned to NO and CN, respectively. 24 In addition, it was observed from Fig. 2f that the peak located at 166.0 eV can be indexed to S–N.…”

“…S1, ESI†) shows that the high-resolution O 1s XPS spectrum can be deconvoluted into two peaks corresponding to C–O (533.0 eV) and CO (531.4 eV). 23,24 As shown in Fig. 2e, the high-resolution N 1s XPS spectrum can be divided into two peaks centered at 406.1 and 399.7 eV, which were assigned to NO and CN, respectively.…”

Regulating the type of nitrogen to improve the performance of Co–N/C with a confinement effect in peroxymonosulfate activation for the effective degradation of organic pollutants

“…As can be seen, three characteristic peaks located at 44.2°, 51.5° and 75.8° were detected in the XRD patterns of the catalysts, which can be assigned to (111), (200) and (220) planes (Co, PDF#15-0806). 23 The microscopic appearance of the catalysts was also observed using TEM. As shown in Fig.…”

“…5h, Co–N/C-3 possessed the lowest corrosion potential, implying the fast electron transfer rate. 23 Benefiting from the small interface charge transfer resistance and fast electron transfer rate, the direct electron transfer process between TC and PMS that occurred on the surface of Co–N/C-3 was more frequent and obvious. On the basis of all above results, it can be concluded that Co–N/C-1 with abundant pyridinic N can activate PMS primarily through the radical pathway to achieve the TC degradation, while the activation mechanism of PMS over Co–N/C-2 containing more pyrrolic N mainly involved 1 O 2 , and exhibited the highest efficiency in TC degradation.…”