TiO₂/ZIF-67 nanocomposites synthesized by the microwave-assisted solvothermal method: a correlation between the synthesis conditions and antimicrobial properties

Abstract

Zeolitic Imidazole Framework (ZIF) and TiO2 based composites have recently attracted interest to control pathogenic microorganism growth. In this context, two novel TiO2/ZIF-67 nanocomposites were synthesized by the microwave-assisted solvothermal...

Facile Direct Growth of ZIF-67 Metal–Organic Framework for Triboelectric Nanogenerators and Their Application in the Internet of Vehicles

“…The peak found at 954 cm –1 is attributed to the out-of-plane bending mode of the C–H bond, and the peaks found at 1147 and 1178 cm –1 are due to the stretching mode of the C–N bond. The imidazole ring expansion, bending modes of the methyl group, deformation of the C–H bond, and stretching modes of CC are found at 1305 and 1384 cm –1 , 1459 and 1503 cm –1 , respectively, in the Raman spectra. , …”

“…The imidazole ring expansion, bending modes of the methyl group, deformation of the C−H bond, and stretching modes of C�C are found at 1305 and 1384 cm −1 , 1459 and 1503 cm −1 , respectively, in the Raman spectra. 56,57 Electrical Characterization of TENG. Figure 3(a) shows the TENG device structure consisting of ZIF-67 as a positive triboelectriclayer, FEP as a negative triboelectric layer, and aluminum acts as a top and bottom electrodes.…”

Co3O4/activated carbon nanocomposites as electrocatalysts for the oxygen evolution reaction

“…S4 †) show a narrow EPR line with a g-value of 2.0058 characteristic of C-related defects as encountered in carbonaceous materials 27 which is superimposed on a broad EPR signal generated by the spin-spin interaction between the Co 2+ centres in the composite. 28 These signals increase with the increase of carbon content in the composites.…”

“…23 A similar morphology was observed in our previous work on other ZIF-67-related nanocomposites. 28 Despite this morphological feature, agglomerated particles with rougher surfaces are also present (Fig. S5 †), which might be due to the presence of AC.…”

TiO2 Phase Ratio’s Contribution to the Photocatalytic Activity

“…SAED confirms these findings, the results being presented in Figures S5 and S6. Note that most of the brookite diffraction lines are overlapped by those of anatase, , and only the 211 reflection at 2θ = 30.8° emphasizes the presence of the brookite phase. The average crystallite sizes of the studied TiO 2 were inferred from the XRD patterns using Scherer’s formula. − The rutile 110, anatase 101, and the brookite 211 reflections were fitted using a Lorentz profile (see Figure S9 and Table T1), the fwhm used to calculate the coherence length along the corresponding crystallographic direction being the difference between the experimental fwhm and the instrument function …”