The ion transfer across the liquid−liquid interface coupled to electrochemical redox reaction at the Pt electrode was investigated simultaneously with a three-electrode potentiostat in combination with cyclic voltammetry. The approach involves using a small aqueous droplet containing a redox couple supported on a platinum electrode and immersed into an organic electrolyte solution. Both electron and ion transfer processes can be observed at separate interfaces for the first time. The effects of concentrations of the redox couple on ion transfer indicate that the overall electrochemical process, proceeding as a coupled electron−ion transfer reaction, is controlled by the electron transfer across the Pt/W interface and the electron-transfer reaction is the drive force of ion transfer across the L/L interface. In addition, for the first time, a new oscillation phenomenon has been observed directly, which is related to the L/L interface, to concentration of ferrocyanide and to potential scan range. The oscillation is caused by the formation of an ion pair at the interface between Fe(CN)6 4- in the aqueous phase and TAB+ in the DCE phase.

A novel thermo-responsive microsphere-sized poly(N-isopropylacrylamide) (PNIPAm) composite hydrogels were prepared by gelation of poly(vinyl alcohol) (PVA) solution containing ultra-fine CaCO3, then treated with 2wt% glutaraldehyde solution, sequencely with HCl acid, and PVA matrix with microsphere-sized pores obtained. The internal pores of the dry PVA matrix were filled with PNIPAm hydrogels to give a thermo-responsive composite hydrogels for drug carrier. The composite hydrogel was characterized via scanning electron microscopy (SEM), temperature dependence of equilibrium swelling ratio in water of the composite hydrogels was also investigated. Rhodamine B (RB) was loaded to the composite hydrogels for release study.

The temperature sensitive behavior and the phase behavior of linear poly(N-isopropylacrylamide) (PNIPA) in water-additive systems were investigated via turbidity measurements.. Three kinds of additives, including acrylic acid (AA), acryl amide (AM) andN-vinyl-2-pyrrolidone (VP), were selected. AM and VP systems only exhibited a different lower critical solution temperatures (LCST) behavior with different additive concentrations, and in low concentration of AM or VP, LCST decreases with additive concentration increasing, but in higher concentration, LCST decreases with additive concentration increasing. However, it was first detected the coexistence of a LCST with an upper critical solution temperature (UCST) in AA system. The systems studied here are alternative functional molecular material for the shading agent in some special conditions.

The CdS quantum dots sensitized TiO2 nanotubes were prepared by sequential chemical bath deposition (S-CBD) method and characterized by FE-SEM and UV-vis spectroscopy. And they were used to degrade the dimethyl phthalate (DMP) in aqueous under sunlight irradiation. The results show that these photo-catalysts have the highest performance, while the initial concentration of dimethyl phthalate in aqueous solution is 10 mg / L, the degradation rates reaches above 80% in the optimum condition which is the CdS deposited 20 cycles, catalyst dosage ~3cm2, and the sunlight irradiating 180 minutes.

The compound WO3/TiO2 nanostructures were prepared by the template technique and characterized by FE-SEM and UV-vis DRS. And they were used to degrade the dimethyl phthalate (DMP) under visible light irradiation. The effects of the initial concentration of DMP and dissolved oxygen (DO) were investigated. The results show that degradation rates reaches 59% in the optimum condition which is ​​the catalyst dosage ~3cm2, the DO is 19.2 mg/ L, xenon lamp irradiating 300 minutes and the initial concentration of dimethyl phthalate in aqueous solution is 10 mg / L.