Metal-free SiOC/g-C3N4 heterojunction composites with efficient visible-light photocatalytic H2 production

Zero-Expanded Gas Sensing of Chiral-Rotating Chemiresistive SiCuOC Structures

“…CuO is an indirect band-gap semiconductor, while SiOC is a direct band-gap semiconductor; thus, their estimated band gaps were 1.2 and 2.11 eV, respectively. 48 According to the XPS valence band spectra, the valence band values of Ag-CuO-1 and SiCuOC were 1.8 and 3.33 eV, respectively. Thus, the responding conduction band values were 0.6 and 1.22 eV.…”

“…UV–vis absorption spectrum and the corresponding estimated band gaps of Ag-CuO-1 and SiCuOC are presented in Figure S8. CuO is an indirect band-gap semiconductor, while SiOC is a direct band-gap semiconductor; thus, their estimated band gaps were 1.2 and 2.11 eV, respectively . According to the XPS valence band spectra, the valence band values of Ag-CuO-1 and SiCuOC were 1.8 and 3.33 eV, respectively.…”

In situ synthesis of SO3H supported Fe3O4@resorcinol–formaldehyde resin core/shell and its catalytic evaluation towards the synthesis of hexahydroquinoline derivatives in green conditions

“…The diffraction peaks at 2q ¼ 30.0 , 35.5 , 43.2 , 53.8 , 57.2 , and 62.6 can be attributed to 022, 222, 004, 224, 114 and 244 crystal planes, respectively, conrming the crystalline structure of the magnetic Fe 3 O 4 . 52 The broadband peak observed in the range of 15 -30 could be assigned to SiO 2 and RF amorphous layers. 53,54 FESEM (Fig.…”

Recent advances in precursor-derived ceramics integrated with two-dimensional materials

“…In addition, there have been reports on the synthesis of ceramics followed by their subsequent compositing with a 2D filler via ball milling or chemical vapour deposition (CVD), which have been extensively covered in previous reviews. [23][24][25][26][27][28] The dispersion of graphene via a solution mixing process is the most widely used method to prepare this 2D material, a process that is typically followed by the crosslinking of precursors and pyrolysis. [29][30][31] In each step of the processing of 2D materials composites, different strategies have been successfully adopted to tune the microstructure of the composite.…”