| In this thesis,three metal oxides(Mn02,M003,MgO)array material were prepared by hydro/solvothermal method.The XRD,SEM and TEM characterization methods were used for analysis phase and morphology of three kinds of metal oxides array.And the adsorption performances were studied for the target pollutants by the synthesis of metal oxide material array.The main contents of the thesis are as follows:1.The Mn02array material was girown onto a capillary by a simple hydrothermal route,on which titanium dioxide seed layer,and it was consisted of length is about 900 nm,width is about 700 nm nanosheet.The Pb2+ and CR as a target the pollutants for adsorption test.The results showed that the adsorption kinetics process followed the pseudo-second-order kinetics.Adsorption isotherm curve-fitting followed Langmuir model and the maximum adsorption capacities were 629.72 mg’g-1 and 825.25 mg’g-1.2.With the same base as the Mn02 array material,the Mo03 array material was grown ointo a capillary through solvothermal route,which was consisted of length is 0.6-1.2 Чm,width is 200 nm nanosheet.The Pb2+ and MB as a target the pollutants for adsorption test.The reSsults showed that the M003 material can effectively reduce Pb2+concentration from 20 mg’L-1 to a low level below the acceptable limits in drinking water standards(10(чg.L-1),the adsorption kinetics process followed the pseudo-second-order kinetics.Adsorption isotherm curve-fitting followed Langmuir model and the maximum adsorption capacities were 1450 mg’g-1 and 2300 mg’g-1.3.The MgO array material was grown onto Ni foam using one step solvothermal route,which was consisted of length is about 300 nm,width is about 200 nm nanosheet.The Pb2+ and CR as a target the pollutants for adsorption test.The results showed that the adsorption kinetics process as well followed the pseudo-second-order kinetics.Adsorption isotherm curve-fitting as well followed Langmuir model and the maximum adsorption capacities were 3523.47 mg’g-1 and 3663.79 mg-1. |
