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Mn1Ce1 and Mn0.9Co0.1Ce1 complex oxides were prepared by co-precipitation in hydrothermal conditions and their physicochemical properties were characterized with N2 adsorption, XRD, Raman, and SEM. The complex oxides show enough stability and catalytic activity for oxidative degradation of 4,4'-Dibromobiphenyl in sub-critical water. Mn0.9Co0.1Ce1 has higher activity than Mn1Ce1, indicating doping...
Glyphosate is the herbicide widely used in China. However, little is known on the processes governing the environmental fate of glyphosate in soils and its environmental risk for groundwater. Laboratory experiments were performed to evaluate the degradation, adsorption, and leaching behavior of glyphosate in three agricultural soils with high sand content and different soil organic carbon content...
The decomposition of high concentration pentachlorophenol (PCP) loaded on granular activated carbon (GAC) was studied by dielectric barrier discharge (DBD) plasma. The effects of discharge voltage, treatment time, gas kinds and flow rate on PCP degradation efficiency were discussed. The results indicated that increasing discharge voltage and treatment time could enhance the degradation efficiency...
This paper investigated the photochemical behavior of diphenolic acid (DPA) in the presence of beta-cyclodextrin (CD) and TiO2 suspensions under a 250 W metal halide lamp (lambdages 365 nm). The interaction of DPA with CD yielded the formation of inclusion complexes at 1:1 stoichiometric ratio in solution. The irradiation of DPA and TiO2 suspensions in the presence of beta-CD showed that the photodegradation...
The properties of plant root exudates and their effects on the water solubility of PCP were investigated in this paper. The results showed that the hydrophobic and the high-molecular-weight fractions of sunflower(Helianthusannuus) root exudates were more than those of lucerne(Medicagosativa) root exudates. With time elapsed, the biodegradation rate of lucerne root exudates was higher than sunflower...
Degradation of nitrobenzene by ozone/zeolite process was investigated under different experimental conditions. The results showed that the removal efficiency of nitrobenzene was significantly promoted in the presence of zeolite compared with the case of ozonation alone. By investigating the effect of tertbutyl alcohol on nitrobenzene removal, it was concluded that nitrobenzene was mainly degraded...
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