Cu-Ni bimetallic single atoms supported on TiO2@NG core-shell material for the removal of dibenzothiophene under visible light

Boosting the Adsorption Performance of Thiophenic Sulfur Compounds with a Multimetallic Dual Metal–Organic Framework Composite

“…66 Meanwhile, the radius of Cu 2+ ions was larger than that of Ni 2+ , which contributed to the composites' improved porosity. 26 However, the continual doping of Cu 2+ could also block partial pores, leading to an increase and subsequent decrease in the total pore volume of the composites with Cu to Ni molar ratios ranging from 0.50 to 1.00. 67 The composites combined the architectural features of MOF-5 and MIL-88B with appropriate channel cavities and adequate specific surface areas.…”

“…For instance, Gao et al synthesized bimetallic Zn 0.75 Mg 0.25 -MOF-74 using a facile one-pot method that exhibited an excellent CO 2 adsorption capacity and effective catalytic activity for the cycloaddition reactions of CO 2 , outperforming monometallic Zn-MOF-74 and Mg-MOF-74 . The synergistic action of Cu + and Ce 4+ with BT molecules was reported by Khan et al Wang et al synthesized TiO 2 @Cu/Ni-NG for the desulfurization of DBT using a precursor dilution strategy, which was also beneficial for reducing the activation energy and accelerating the reaction rate because of the synergistic effect of Cu and Ni single atoms loaded on the surface of nitrogen-doped graphene . Our group has also conducted extensive research on adsorptive desulfurization by multimetallic adsorbents.…”

Synthesis of modified amphiphilic quaternary ammonium silicotungstate and its application in heterogeneous catalytic oxidative desulfurization

“…11,12 Some of these methods have milder operating conditions and better removal efficiencies for the organic sulfur than HDS. Additionally, some scholars combined these with other new technologies for deep desulfurization, such as photocatalysis, 13 ultrasonication, 14 supercritical fluid, 15 microwave and so on. 16 Although most of these advanced desulfurization methods have been proposed and studied in principle, their practical application has not been popularized in industry.…”

Enhanced Oxygen Activation Achieved by Robust Single Chromium Atom-Derived Catalysts in Aerobic Oxidative Desulfurization

“…Defective UiO-66­(Zr) anchored by single tungsten sites could promote the oxidative removal of sulfur compounds in the presence of H 2 O 2 but was inactive if molecular oxygen was used as the oxidant . TiO 2 @nitrogen-doped graphene (NG) core–shell material-supported Cu–Ni bimetallic SAs were adopted in the removal of dibenzothiophene under visible light irradiation . Although intensive studies have been conducted in ODS due to its critical role in producing sulfur-free clean fuels, , there is still a lack of nanocatalysts that could leverage the merits of SACs, especially with earth-abundant metal cores and robust nanoporous supports, and achieve attractive aerobic ODS transformation in terms of efficient catalytic activity, robust stability, and attractive oxidized product adsorption capability.…”

“…29 TiO 2 @nitrogen-doped graphene (NG) core−shell material-supported Cu−Ni bimetallic SAs were adopted in the removal of dibenzothiophene under visible light irradiation. 30 Although intensive studies have been conducted in ODS due to its critical role in producing sulfur-free clean fuels, 31,32 there is still a lack of nanocatalysts that could leverage the merits of SACs, especially with earth-abundant metal cores and robust nanoporous supports, and achieve attractive aerobic ODS transformation in terms of efficient catalytic activity, robust stability, and attractive oxidized product adsorption capability. Herein, a series of SACs composed of homogeneously distributed single chromium atoms anchored on multiwalled carbon nanotubes (MWCNTs) were constructed via a facile wet impregnation/calcination procedure (Figure 1) (denoted as Cr/MWCNTs).…”