A facile fabrication of highly dispersed CeO2/SiO2 aerogel composites with high adsorption desulfurization performance

Tuning Interaction and Diffusion for Dimethyl Disulfide Adsorption on Cu-BTC Frameworks via Low Transition-Metal Doping

“…Among these approaches, ADS has become one of the most attractive methods owing to its competitive cost, promising efficiency, and mild operation conditions. , The high-performance adsorbents play a crucial role in determining desulfurization efficiency. Compared with these materials including zeolites, , activated carbon-derived adsorbents, and aerogel composites, metal–organic frameworks (MOFs), a new family of porous materials, have been developed as attractive candidates in the desulfurization field owing to their ultrahigh porosity, open metal sites, tunable structures, and exciting functionalities. , Specifically, both experimental findings and computational results have confirmed that the structure of copper-1,3,5-benzenetricarboxylic acid (Cu-BTC) has promising adsorption affinity to a number of organosulfur compounds. , According to the hard and soft acid–base theory, the sulfur atoms of organosulfur molecules could be combined with Lewis acid sites, such as transition-metal cations like Zn 2+ , Ag + , Cu 2+ , Cu + , and Ni 2+ . , Furthermore, π-complexation interaction between cations of d-block metals and sulfur species is another commonly accepted adsorption mechanism. , Additionally, the selective adsorption of sulfur compounds on transition-metal-involving structures can also be explained using the direct sulfur–metal (S–M) interaction mechanism. , …”

“…4,11 The high-performance adsorbents play a crucial role in determining desulfurization efficiency. Compared with these materials including zeolites, 2,12 activated carbon-derived adsorbents, 13 and aerogel composites, 14 metal−organic frameworks (MOFs), a new family of porous materials, have been developed as attractive candidates in the desulfurization field owing to their ultrahigh porosity, open metal sites, tunable structures, and exciting functionalities. 15,16 Specifically, both experimental findings and computational results have confirmed that the structure of copper-1,3,5-benzenetricarboxylic acid (Cu-BTC) has promising adsorption affinity to a number of organosulfur compounds.…”

“…20,21 Additionally, the selective adsorption of sulfur compounds on transition-metal-involving structures can also be explained using the direct sulfur− metal (S−M) interaction mechanism. 4,14 Owing to the great tunability of the valence state of Cu species, Cu-BTC has received wide interest in the modulation of metal composition for enhanced performance. Zhao et al 22 T h i s c o n t e n t i s conducted modification on Cu-BTC using V 3+ to achieve improved sulfur capacity.…”

Multifunctional CeO2incorporated Fe2O3anchored on a rich porous structured carbon backbone for supercapacitors and adsorption of acid orange II

“…13 To overcome this bottleneck, it has been claimed that integrating high electrical conductivity carbon materials and additional active sites transitionmetal oxides with CeO 2 . 14 CeO 2 -Based composites with other transitionmetal oxides, such as CeO 2 @Co 3 O 4 , 15 CeO 2 -Fe 2 O 3 , 16 CeO 2 -CuO, 17 CeO 2 -MnO 2 , 18 and others, 19 have recently been created and used as counter electrodes. Hematite (a-Fe 2 O 3 ), a direct bandgap (2.1 eV) semiconductor material, can be applied in supercapacitors due to its high theoretical capacity (4600 mA h g À1 ), low cost, environmental friendliness, natural abundance, and good capacitance retention.…”

Adsorption oxidation desulfurization of model fuel by mesoporous SiO2 supported deep eutectic solvents TBAB/PEG-200

“…Some desulfurization methods also show especially fast and efficient desulfurization performance under mild operating conditions. 20–23…”