Enhanced removal of hydrogen sulfide using novel nanofluid system composed of deep eutectic solvent and Cu nanoparticles

A Stepwise-Confined Self-Reduction Strategy to Construct a Dynamic Nanocatalyst for Boosting Tumor Catalytic Therapy

“…The XPS spectrum of Cu 2p shown in Figure g has two coupled peaks located at 952.3/932.4 and 955.5/935.4 eV, which correspond to Cu 2p 1/2 and Cu 2p 3/2 of Cu + and Cu 2+ , respectively. , Quantitative results show that the contents of Fe 2+ and Cu + in total Fe and Cu species were as high as 56.66 and 51.74% (Table S1). The high contents of low-valence Fe 2+ and Cu + may be due to the reduction effect of thiol groups and further coordination interactions between sulfur and metal species, which are seen by the high-resolution spectrum of S 2p (Figure h). , In addition, the decrease in the zeta potential (Figure S5), as well as the disappearance/decrease of the thiol peak in the FTIR spectrum (Figure S6) and Raman spectrum (Figure S7) of Cu@Fe-FOMs, indicates the coordination reactions between thiols and Fe or Cu species. Moreover, the specific thiol contents of FOMs, Fe-FOMs, and Cu@Fe-FOMs determined by Ellman’s method were calculated to be 6.2, 2.8, and 1.2 mM, respectively, thus suggesting that the continuous consumption of thiols leads to coordination with metal species (Figure S8).…”

Room-temperature dissolution of PbI2 by a PEGylated deep eutectic solvent with high efficiency

“…Fig. 5 shows that both the 13 C and 1 H NMR peaks of the DES shift to the downfield after dissolving PbI 2 . As for 1 H NMR, the order of upfield is H4 (À0.81 ppm) o H123 (À0.73, À0.69, À0.61 ppm) o H5 (À0.52 ppm) (Fig.…”

“…9,10 They have been applied in many fields as solvents. 5,[11][12][13][14][15][16][17][18][19][20][21] Particularly, DESs have shown favorable properties as electrolytes in electrochemical double-layer capacitors, lithium-ion batteries and dye-sensitized solar cells. [22][23][24][25] Polyethylene glycol-based DESs (PEGylated DESs) possess the favorable properties of low cost, high biocompatibility, low corrosivity and low toxicity.…”

“…9,10 They have been applied in many fields as solvents. 5,11–21 Particularly, DESs have shown favorable properties as electrolytes in electrochemical double-layer capacitors, lithium-ion batteries and dye-sensitized solar cells. 22–25…”

Rotten Eggs Revaluated: Ionic Liquids and Deep Eutectic Solvents for Removal and Utilization of Hydrogen Sulfide

“…Liu et al prepared an ETA/DES solution by dissolving ethanolamine (ETA) into ChCl/EG (1:2, molar ratio) with a weight concentration of 20%. Then the DES-based nanofluid (NF) systems (NF@Cu- x %) were further prepared by suspending Cu nanoparticles into the ETA/DES solution with different weight concentrations ( x ) of Cu.…”