Organic solvent reverse osmosis membranes for organic liquid mixture separation: A review

Liu, Cuijing; Dong, Guanying; Tsuru, Toshinori; Matsuyama, Hideto

doi:10.1016/j.memsci.2020.118882

Cited by 75 publications

(36 citation statements)

References 142 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because the processes should be optional thermodynamically, as mentioned above, other separation and transfer processes can be utilized as charging methods, which can be achieved by designing the reaction systems from another point of view. For instance, different viewpoints from the phase change processes, such as the difference in molecule size between the MS and TS, may be required for applying the charging method based on membrane separation processes 48 , 49 . Moreover, applications of mechanical processes such as membrane separation may enable the utilization of mechanical energy as an input for charging, which can contribute to the direct use of renewable mechanical energy.…”

Section: Discussionmentioning

confidence: 99%

Electrochemical cell recharging by solvent separation and transfer processes

Matsui

Kawase

Suzuki

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Electrochemical conversion and storage of unutilized renewable energy will contribute to decarbonization. Here, we create the concept of a liquid electrochemical cell that discharges between the anodic and cathodic sides by reverse reactions of the same redox couple in different solvation states, which are created by differences in the mixture ratios of two solvents called the main solvent (MS) and the transferred solvent (TS). The cell can be charged by a transfer of the TS between the discharged anolyte and catholyte. As an example, we demonstrate a cell utilizing a ferro-/ferricyanide redox couple. Stable discharging and charging via the proposed method is achieved by utilizing water (MS) and acetone (TS). Additionally, dominating factors in the design of a high-performance system are discussed, focusing on the electron acceptability of the MS and the TS. The cell voltages are successfully tuned, and a cell voltage of 0.63 V is achieved by the combination of dimethyl sulfoxide (MS) and water (TS). Moreover, the cell can be customized by various electrochemical reaction systems, which can allow multiple options for the charging processes. This concept provides new approaches for the utilization of diverse energy sources as an input for the charging of electrochemical cells.

show abstract

Section: Discussionmentioning

confidence: 99%

Electrochemical cell recharging by solvent separation and transfer processes

Matsui

Kawase

Suzuki

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…54 In general, NF membranes can differentiate molecules larger than 200 Da from organic liquid. 55 The ions of different valence states could be separated by loading charge. 56 The rejection rate of COD, SO 4 2− , Cl − , surfactants and phenols by NF was 94%, 91%, 9%, 47% and 66%.…”

Section: Pretreatment Methods Of Impurities In Electroplating Wastewatermentioning

confidence: 99%

Resource utilization of electroplating wastewater: obstacles and solutions

Dai

et al. 2022

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

“…OSRO was developed to separate smaller molecular sized solutes, allowing separation of organic solvent mixtures. 10,14 However, OSN membranes, such as poly(dimethylsiloxane), 15,16 epoxysilicone, 17 and polyimide, 18 have large pores and are unsuitable for OSRO, thus, there is an imminent need to develop suitable OSRO membranes. Thus, OSRO, and not OSN, is the alternative for distillation, improving the energy efficiency for solvent separation.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, OSRO, and not OSN, is the alternative for distillation, improving the energy efficiency for solvent separation. 14…”

Section: Introductionmentioning

confidence: 99%