| In recent years, with the rapid development of economy people’s pursuit for high quality life is constantly improved, so indoor air pollution problem is drawing more and more people’s attention. Among several control methods, metal oxide catalytic oxidation method is widely concerned because of its simple operation, high catalytic effect and no pollution. However, the catalytic oxidation of metal oxide catalyst which is used in the catalyst now has a smaller surface area and more powder state, so the catalytic efficiency of the catalyst can be limited and easily lead to dust pollution to some extent.Mesoporous metal oxides which have the advantages of nano properties and mesoporous materials with high specific surface area, have become one of the hot spots in catalytic oxidation of metal oxides area. And the preparation of a catalyst to a porous composite catalyst supported on the body not only give full play to the role of porous material’s adsorption performance but also can improve the catalyst dispersion, reducing dust pollution to some extent, in order to achieve the effect of "adsorption-concentration-catalysis".Mesoporous CuO-CeO2 with uniform particle size, good dispersion was successfully synthesized by the modifided soft template method in this experiment and the best preparation technology was obtained by SEM, XRD and TEM, etc: reaction temperature was 70℃, CTAB:P123 was 15:1, Cu:Ce was 1:5, and the catalytic efficiency of the mesoporous CuO-CeO2 prepared under this technology to toluene was 58.8%.Mesoporous CuO-CeO2/ expanded graphite composite catalyst was successfully prepared while the Cu-Ce gel was successfully loaded onto the expanded graphite by ultrasonic impregnation. The best load technology was that 0.5 g expanded graphite was impregnated in 10 mL wet gel and the impregnation time was 15 min. The catalytic efficiency of the mesoporous CuO-CeO2/expanded graphite composite catalyst prepared under this technology to toluene was 66.2%. Adsorption kinetics analysis showed that the mesoporous CuO-CeO2/expanded graphite composite catalyst for toluene degradation adsorption to chemical adsorption and diffusion is a complex heterogeneous adsorption process. The results of adsorption catalytic stability of mesoporous CuO-CeO2/expanded graphite composite catalyst showed that the composite catalyst has a good adsorption catalytic stability, excellent practical value.P(AN-VDC) large capsule with a rough surface, multi-cavity structure and uniform particle sizes was successfully prepared by the hanging drops method. And methyl red was chosen as the target adsorbate, and the biggest factor of adsorption performance impact on a large capsule P(AN-VDC) is capsule diameter, followed by coagulation bath composition, solidification time and the smallest is the Coagulation bath temperature which was obtained by orthogonal experimental. Best preparation crafts of P(AN-VDC) large capsules is:coagulation bath consisting of VDMF:WH2O is 1:2; coagulation bath temperature is 30℃; Coagulation time is 15 min; particle diameter is 1 mm.Mesoporous CuO-CeO2/P(AN-VDC) large capsule composite catalyst was successfully prepared, and the catalyst particles can achieve more uniform distribution on surface or internal of the capsule. Composite catalyst catalytic degradation of toluene adsorption increased with load and then decreasing trend, optimum adsorption and catalytic effect showed the best when the load capacity of was 20 wt%, which is 81.3%. And the different P (AN-VDC) carriers in the form of load difference catalyst were compared. It found that P(AN-VDC) adsorption and catalytic effect of the large capsule as a catalyst carrier to prepare supported composite catalyst was superior to P (AN-VDC) films and fibers as a carrier, which has a good practical value.
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