Photocatalysis Characteristic of Nano Cu/TiO_2 Composite Powders Fabricated from Salt Solution

摘要

In the present study, TiO_2 imbed copper matrix powder have been successfully prepared with the (CuSO_4·5H_2O + TiO_2 + Zn) composite salt solution. The composite Cu/TiO_2 powders were formed by drying the solution at 200°～ 400° in the hydrogen atmosphere. Photocatalysis characteristics were evaluated by detecting TOC(total organic carbon) amount with TOC analyzer model 5000A Shimazu Co. Phase analysis of Cu/ TiO_2 composite powders was carried out by XRD, DSC and powder size was measured with TEM. Composite powders show the about 100nm mean particle size and composed with Cu and TiO_2 completely at 400 ℃ reduction. The reduction ratio of TOC amount was 40% by the composite Cu/ powders under the UV irradiation for 8 hours.