염용액으로부터 제조된 Cu/TiO2 복합분말의 광촉매 특성
Photocatalysis Characteristics of Nano Cu/TiO2 Composite Powders Fabricated from Salt Solution
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Abstract
In the present study, TiO2 imbedded copper matrix powders have been successfully prepared from the (CuSO4+TiO2+Zn) composite salt solution. The composite Cu/TiO2 powders were formed by drying the solution at 200~400℃ in the hydrogen atmosphere. Photocatalytic characteristics was evaluated by detecting TOC (total organic carbon) amount with TOC analyzer (model 5000A Shimadzu Co). Phase analysis of Cu/TiO2 composite powders was carried out by XRD, DSC and powder size was measured with TEM. The mean particle size of composite powders was about 100 nm and a few zinc and copper oxide phases was included. The reduction ratio of TOC amount was 60% by the composite Cu/TiO2 powders under the UV irradiation for 8 hours.