Dendritic fibrous nano-titanium (DFNT) with highly dispersed poly(ionic liquids) as a nanocatalyst for synthesis of dimethyl carbonate from methanol and carbon dioxide

Abstract

The simultaneous fabrication of a phase junction and fibrous anatomy is able to ameliorate the separation, catalytic power, and catalytic activity of nano TiO2. However, It's easy and green fabrication is still essentially required. Here, an advanced dandelion-like TiO2 with anatase/TiO2 phase interface and the high particular outer layer was well created by a convenient and eco-friendly deep eutectic solvent-tuning approach. The large specific outer layer is the result of its 3D hierarchical anatomy assembled by 2D ultrathin nanosheets with mesopores. We fabricated Polyoxomolybdate [Mo132] nanospheres with various ionic liquid groups loaded on dendritic fibrous nanotitanium (DFNT@IL/Mo132) employing an unchallenging synthetic path. DFNT could provide abundant hydroxyl groups for uniform loading of IL through chemical bonding interaction, while IL could adjust the appropriate fiber dimension and show the active adsorption sites of amino groups that contribute to chemisorption with CO2. The overall topography of the DFNT@IL/Mo132 composite did not considerably alter after IL/Mo132 loading, and its mesoporous anatomy as well as crystal line shape were still sustained. This catalyst suffers from a low rate of DMC formation for the direct production of dimethyl carbonate (DMC) from methanol and CO2 due to its small specific outer layer and less active sites. In the current paper, we improved the issueby uniform dispersion of doped IL/Mo132 DFNT-based metal–organic frameworks (DFNT@IL/Mo132), which were produced through anamended hydrothermal approach.