Zn/Al/La and Zn/Al/La/M (M = Li, Mg, Zr) mixed oxides were obtained by calcination of hydrotalcites and tested for glycerol carbonate synthesis from CO₂ carbonylation.

The transformation of CO₂ and glycerol into glycerol carbonate was carried out by using acetonitrile as coupling agent over La₂O₂CO₃–ZnO in the present work. A series of La–Zn mixed oxide catalysts with different molar ratios were prepared and calcined at different temperatures. The catalysts were characterized by N₂ physisorption, XRD, XPS, FT-infrared spectroscopy and temperature-programmed desorption of CO₂. The results revealed that the formation of La₂O₂CO₃ improved the surface basicity which then favors the CO₂ activation and the carbonate yield was shown to be correlated with the amount of moderately basic sites. The XPS measurement demonstrated that La₂O₂CO₃ favored the electron transfer from zinc atoms to lanthanum atoms or oxygen atoms which then favors the activation of glycerol. The synergism between ZnO and La₂O₂CO₃ is responsible for the high catalytic activities of the La–Zn catalysts. The best result was obtained on the catalyst with molar ratio of La : Zn = 1 : 4 and calcination at 500 °C.

A stable Z-scheme with well-defined architecture by in situ growth of COFs on CdS for photocatalytic water splitting is constructed. The T-COF shell can protect the catalytic center of CdS from deactivation and photocorrosion.

A series of mesoporous NiO–Y ₂ O ₃ –Al ₂ O ₃ composite oxides with different yttrium contents were synthesized by either a one-pot evaporation-induced self-assembly (EISA) method or impregnation for carbon dioxide reforming of methane (CRM).

SBA-15 prepared via ethanol extraction for template removing was grafted with three kinds of amine precursors (mono-, di-, tri-aminosilanes) to synthesis new CO₂ adsorbents. The SBA-15 support and the obtained adsorbents were characterized by X-ray diffraction (XRD), small-angle X-ray scattering (SAXS), N₂ adsorption/desorption, thermogravimetry (TG), elemental analysis, Fourier transform infrared (FTIR) spectrometry, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found that, except higher silanol density, the ethanol-extracted SBA-15 support possessed a more regular mesophase and thicker walls than traditionally calcined samples, leading to a good stability of the adsorbent under steam treatment. The adsorption capacity of different amine-grafted samples was found to be influenced by not only the surface amine density, but also their physiochemical properties. These observations provide important support for further studies of applying amine-grafted adsorbents in practical CO₂ capture process.