Ionic liquids (ILs) have been widely introduced recently into the epoxide ring-opening reaction as catalysts or solvent without considering the chemical stability of ILs in propylene oxide (PO). Through a combination of electrospray-ionization quadrupole time-of-flight mass spectrometry (ESI-QTOF-MS) investigations and quantum-chemical calculations...
Ionic liquids (ILs) have been widely introduced recently into the epoxide ring-opening reaction as catalysts or solvent without considering the chemical stability of ILs in propylene oxide (PO). Through a combination of electrospray-ionization quadrupole time-of-flight mass spectrometry (ESI-QTOF-MS) investigations and quantum-chemical calculations...
Shale gas, as a potential substitute for energy source, requires important processing steps before utilization. The most common separation technology applied is distillation, which is energy-intensive. With good stability, non-volatility, and tailored properties, ionic liquids (ILs) are regarded as novel potential solvents and alternative media for...
Shale gas, as a potential substitute for energy source, requires important processing steps before utilization. The most common separation technology applied is distillation, which is energy-intensive. With good stability, non-volatility, and tailored properties, ionic liquids (ILs) are regarded as novel potential solvents and alternative media for...
Poly(ethylene glycol) (PEG), a kind of "green" medium, was used to extract artemisinin from the Chinese herb Artemisia annua L. to replace the traditional volatile and explosive solvents like petroleum ether, diethyl ether, etc. PEGs, with different molecular weights, show excellent ability for artemisinin extraction, and the extraction efficiency ...
Poly(ethylene glycol) (PEG), a kind of "green" medium, was used to extract artemisinin from the Chinese herb Artemisia annua L. to replace the traditional volatile and explosive solvents like petroleum ether, diethyl ether, etc. PEGs, with different molecular weights, show excellent ability for artemisinin extraction, and the extraction efficiency ...
On the basis of efficient and recyclable criteria for catalytic conversion of CO2 into cyclic carbonates, functionalized polymeric ionic liquids grafted onto the silica ([email protected]) are explored by the polymeric method herein. Among all the prepared [email protected], the PIL[email protected] loaded with a high mass fraction (50%) of PIL is the best in catalytic activity...
On the basis of efficient and recyclable criteria for catalytic conversion of CO2 into cyclic carbonates, functionalized polymeric ionic liquids grafted onto the silica ([email protected]) are explored by the polymeric method herein. Among all the prepared [email protected], the [email protected] loaded with a high mass fraction (50%) of PIL is the best in catalytic activity...
This study explores the effect of three simple pretreatment methods - hot water, ethanol (EtOH) and sodium hydroxide (NaOH) - on the performance of commercial polysulfone (PSt) membranes. 100% EtOH and 1 M NaOH pretreated membranes exhibited increases of, respectively, 600% and 50% of water permeability compared to the hot water pretreated membrane...
This study explores the effect of three simple pretreatment methods - hot water, ethanol (EtOH) and sodium hydroxide (NaOH) - on the performance of commercial polysulfone (PSt) membranes. 100% EtOH and 1 M NaOH pretreated membranes exhibited increases of, respectively, 600% and 50% of water permeability compared to the hot water pretreated membrane...
