Ionic liquid microemulsion-assisted synthesis and improved photocatalytic activity of ZnIn2S4

Polymer Engineering & Sci

Zhang

et al. 2019

This paper reported the in situ fabrication of high‐performance poly(ionic liquid) adsorbents by using polymeric double‐ionic liquid microemulsions (PDILMs)‐mediated thermosynthesis. The PDILMs were successfully formed and their pseudo‐ternary phase diagram was presented. Subsequently, poly(ionic liquid)s were in situ thermosynthesized in PDILMs. The microstructure of the prepared poly(ionic liquid)s was characterized by FTIR, Tg, and DSC analyses. Besides, the influence of various parameters including the crosslinking agent amount, reaction time and adsorbent dosage on the adsorption behavior of poly(ionic liquid)s for Zn(II) was investigated in detail. The results indicated that poly(ionic liquid)s were successfully in situ polymerized within PDILMs, and designed polymers exhibited excellent adsorption property for Zn(II) from aqueous water. Adsorption kinetics and adsorption isotherms further revealed that the adsorption process followed the pseudo‐second‐order kinetic model, and the Freundlich adsorption isotherm models were more suitable for the description of poly(ionic liquid)s for Zn(II) adsorption. POLYM. ENG. SCI., 59:1036–1042, 2019. © 2019 Society of Plastics Engineers

Section: Introductionmentioning

confidence: 99%

Ionic liquid microemulsion‐mediated in situ thermosynthesis of poly(ionic liquid)s and their adsorption properties for Zn(II)

Polymer Engineering & Sci

Zhang

et al. 2019

“…Ionic liquids are attractive solvents that can boost clean technology development [1][2][3] . The derived poly(ionic liquid)s combine the characteristics of ionic liquids and traditional polymers, and hence show enormous advantages such as excellent designability, improved ionic conductivity, and mechanical durability 4 .…”

Section: Introductionmentioning

confidence: 99%

Thiol-ene click synthesis of adsorption functionalized poly(ionic liquid)s: influence of the mole fraction of pendant enes

et al. 2021

J Polym Res

Adsorption functionalized poly(ionic liquid)s could be thiol-ene click synthesized within surfactant-free ionic liquid microemulsions. However, the in uence of the mole fraction of pendant enes on the asprepared polymer is still unclear. Herein, the in uence of the mole fraction of pendant enes on the molecular structure, surface morphology, thermostability and adsorption performance of poly(ionic liquid)s were investigated in detail. To characterize the as-prepared polymers, FTIR, NMR, TGA, DSC, SEM and UV-vis were used, and the adsorption isotherm/kinetics studies were carried out. The results show that the mole fraction of pendant enes had a signi cant difference on the characterization of poly(ionic liquid)s. The lower mole fraction of pendant enes donated lower T10% value, slower degradation rates and lower Tg, and the value of 0.30 was the boundary of forming structure with various beading sizes and structure with various irregularly shaped apertures. In addition, poly(ionic liquid)s with different mole fraction of pendant enes all showed excellent adsorption performance to DR, also indicate remarkable potential in the application of dying wastewater treatment.

“…The traditional synthesis method of PILs was almost bulk-free radical polymerization at normal pressure. Our previous research showed that functional materials could be synthesized in situ within ionic liquid microemulsions [12]. Nowadays, microemulsions involving ionic liquids have attracted much attention in the world.…”

Section: Introductionmentioning

confidence: 99%

Construction of Novel Polymerizable Ionic Liquid Microemulsions and the In Situ Synthesis of Poly(Ionic Liquid) Adsorbents

Chen

et al. 2019

Nanomaterials

This paper reports the successful construction of novel polymerizable ionic liquid microemulsions and the in situ synthesis of poly(ionic liquid) adsorbents for the removal of Zn2+ from aqueous solution. Dynamic light-scattering data were used to confirm the polymerization media and to illustrate the effect of the crosslinker dosage on the droplet size of the microemulsion. FTIR and thermal analysis were employed to confirm the successful preparation of the designed polymers and characterize their thermostability and glass transition-temperature value. The optimization of the adsorption process indicates that the initial concentration of Zn2+, pH, adsorbent dosage and contact time affected the adsorption performance of poly(ionic liquid)s toward Zn2+. Furthermore, our research revealed that the adsorption process can be effectively described by the pseudo second-order kinetic model and the Freundlich isotherm model.