The electro chemical process to produce sodium ferrate flocculent using solid polymer electrolyte (SPE) anion exchange membrane as separator has been described. Ferrate having a high redox potential(1.9V in acid solut...The electro chemical process to produce sodium ferrate flocculent using solid polymer electrolyte (SPE) anion exchange membrane as separator has been described. Ferrate having a high redox potential(1.9V in acid solution) has been used as an oxidant in treatment of dye wastewater. The OH- transfer rate from thecathodic chamber to the anodic chamber and the steady state polarization have been investigated. Results show that both of the degradation and decolorization of dye, acid chrome blue are efficient. It is a first order reaction with a rateconstant: k=7.8×10-4s-1.展开更多
A novel nano-cobalt/ethanol sol was firstly obtained by pulsed laser ablation on the interface of solid and flowing-liquid. TEM results show that nano-cobalt particles size is about 30 nm. Electronic diffraction and...A novel nano-cobalt/ethanol sol was firstly obtained by pulsed laser ablation on the interface of solid and flowing-liquid. TEM results show that nano-cobalt particles size is about 30 nm. Electronic diffraction and XRD analysis both indicate that the nano-cobalt is non-crystalline. It was found that the stretching vibration of associating hydroxyl(γ OH) and the deformation vibration of C-H in ethanol are strengthened, but stretching vibration of γ C-O in primary hydroxyl of ethanol is restrained through the FTIR spectrum. The UV-Vis results show that there are one strong absorption peak at 231 99 nm due to primary nano-cobalt particles and two medium absorption peaks at 273 00 and 308 56 nm due to quantum confine effect.展开更多
文摘The electro chemical process to produce sodium ferrate flocculent using solid polymer electrolyte (SPE) anion exchange membrane as separator has been described. Ferrate having a high redox potential(1.9V in acid solution) has been used as an oxidant in treatment of dye wastewater. The OH- transfer rate from thecathodic chamber to the anodic chamber and the steady state polarization have been investigated. Results show that both of the degradation and decolorization of dye, acid chrome blue are efficient. It is a first order reaction with a rateconstant: k=7.8×10-4s-1.
文摘A novel nano-cobalt/ethanol sol was firstly obtained by pulsed laser ablation on the interface of solid and flowing-liquid. TEM results show that nano-cobalt particles size is about 30 nm. Electronic diffraction and XRD analysis both indicate that the nano-cobalt is non-crystalline. It was found that the stretching vibration of associating hydroxyl(γ OH) and the deformation vibration of C-H in ethanol are strengthened, but stretching vibration of γ C-O in primary hydroxyl of ethanol is restrained through the FTIR spectrum. The UV-Vis results show that there are one strong absorption peak at 231 99 nm due to primary nano-cobalt particles and two medium absorption peaks at 273 00 and 308 56 nm due to quantum confine effect.
