Immobilization of U(VI) onto covalent organic frameworks with the different periodic structure by photocatalytic reduction

Direct Z-scheme WO3/covalent organic framework (COF) heterostructure for enhanced photocatalytic hydrogen peroxide production in water

“…3(b), the peak centered on 400.1 eV and 399.4 eV, which correspond to N–H and N–C, respectively. 36,46,47 The W 4f region spectra are exhibited in Fig. 3(c).…”

Photoelectric Multilevel Memory Device based on Covalent Organic Polymer Film with Keto–Enol Tautomerism for Harsh Environments Applications

“…For the C 1s XPS spectrum of Py-COP-3 (Figure S4e, Supporting Information), three typical signals appear, which are attributed to the carbonyl carbon (287.40 eV), imine carbon (286.25 eV), and the conjugated structure of carbon (284.80 eV), respectively. [28,29] TGA was employed to study the thermal stability properties of Py-COPs (Figure S5, Supporting Information). The results showed that both Py-COP-0 and Py-COP-3 can be thermally stable.…”

Tailoring chelating sites in two-dimensional covalent organic framework nanosheets for enhanced uranium capture

“…S12, ESI †), the observed shift of binding peaks and the appearance of a new N-U peak indicate the involvement of N atoms from imine groups and O atoms from ortho-hydroxyl groups in the coordination interaction with U(VI). 31,32 These results underscore the orderly arranged N and O atoms in the COF nanosheets, providing specific binding sites for U(VI). The possible mechanism of U(VI) capture by TAPA-COF-1 and TAPA-COF-2 is shown in Fig.…”