Tuning refractive index of deep eutectic solvents

Unexpectedly Superhigh Toxicity of Superbase-Derived Deep Eutectic Solvents albeit High Efficiency for CO2 Capture and Conversion

“…Therefore, the effect of the mole ratio on the properties of DESs should be investigated. There are many previous reports investigating the effect of the mole ratio of DESs on physical properties ,, and industrial applications. ,− DESs DBU/DBN:EG with different molar ratios (i.e., 2:1, 4:1, 6:1, and 8:1) are prepared to study the effect of the molar ratio on the toxicity of superbase-derived DESs. The IC50 values of DBU, DBN, and EG were 8.49 ± 0.09 mM, 15.51 ± 3.68 mM, and 1308.34 ± 14.32 mM, respectively (Table ).…”

“…1,8-Diazabicyclo­[5.4.0]­undec-7-ene (DBU, 99%), 1,5-diazabicyclo[4.3.0]­non-5-ene (DBN, 98%), ethylene glycol (EG, 99%), glycerine (Gl, 99%), benzyl alcohol (BnOH, 99%), benzoic acid (BEN, 99.5%), glutaric acid (GA, 99%), malonic acid (MA, 99.5%), and oxalic acid (OA, 99.5%) were purchased from Beijing Innochem Technology Co., Ltd. The synthesis procedure of superbase-derived DESs was analogous to previous reports. ,,,− The different types of HBD and HBA were mixed according to the fixed molar ratio and magnetically stirred for 24 h until the mixtures show a clear state. The types of HBD involved in this study include EG, Gl, BnOH, BEN, GA, MA, and OA, while HBA includes DBU and DBN.…”

Sustainable Tandem Strategy for Recycling the Lithium-Ion Battery Cathode and Treating Waste by Cheap and Biocompatible Deep Eutectic Solvents

“…PEG:PHA has been applied for LIB dissolution and physical property determination in previous reports. 30,43 Both PEG and PHA are cheap and biocompatible; furthermore, PHA mainly exists in whole grains, beans, and nuts. Moreover, the magnetic adsorbents after removing organic dye waste could be easily regenerated by a magnet.…”

Experimental Study on a Superstable Nano-TiO2 Deep Eutectic Solvent Nanofluid for Solar Energy Harvesting

“…It is indicated that the weak chemical association between nanoparticle and glycerol plays a significant role in the thermal conductivity of the desired nanofluids. In addition, the specific heat capacity of DES-based nanofluids was studied by means of some chemical analysis approaches, and it was found that hydrogen bonding association was beneficial for specific heat capacity and the addition of nanoparticle which could interact with hydrogen bond donor component and give a positive effect on increasing the specific heat capacity. − Whereas vast advances in researching DES-based nanofluids regarding the thermophysical properties and application in energy transportation have been made, an unavoidable issue of DES-based nanofluids is always lying on the avenue of further intensive practical utilization of them, namely, static stability. − Generally, the way for solving the poor stability of a suspension mainly relies on the addition of dispersant which could be used to increase the potential energy of nanoparticle surface and leads to the dispersing of nanoparticle in the environment of base solvent and restrain from aggregation. − Dispersant, also known as surfactant, can be mainly divided into anionic, cationic, and neutral types, is usually used in accordance with the characteristics of base solvents. Compared with the traditionally used single-component solvent, DES are constituted by at least two components, and each component associates with each other by a hydrogen bond effect.…”