本研究是利用低溫水熱法製備銅基雙金屬硫氧化物，並將材料置於高溫爐中煆燒不同溫度後，以X光繞射儀(XRD)分析材料的結構及結晶性；場發射掃描式電子顯微鏡（FESEM）觀察材料的表面形態；能量分散式光譜儀(EDS)半定量分析材料元素組成與銅、錳、鎳、氧、硫之含量變化。在光學性質量測方面，採用紫外光/可見光吸收光譜儀（UV-Vis spectrometer）量測材料經熱處理後吸收率與能隙的變化。
在抗菌試驗上，菌種選用大腸桿菌(E.coli)與金黃色葡萄球菌(S.aureus)，在起始菌液濃度為1 × 108 CFU/mL的情形下，分別於暗室及20瓦LED光源下進行抗菌試驗，發現多數材料之抗菌能力都隨著煆燒溫度增加而變強，其中又以CuMnOS的效果最佳，只需經130度煆燒一小時後，無論在暗室或亮室下，殺菌率均可達到99.99%以上，說明了透過摻雜和熱處理可以改善其抗菌性能，且可以證實相同觸媒材料在經過相同熱處理後，於照光下的抗菌效果比暗室下更為突出。

In this research, Cu-based bimetal oxysulfides were prepared by low temperature hydrothermal synthesis method. The as-prepared precipitates were calcined at different temperatures in a box furnace. The structure and crystallinity of oxysulfides were characterized by X-ray diffractometry (XRD), the morphology by field-emission scanning electron microscopy (FE-SEM), the compositions on Cu, Mn, Ni, O, and S by energy-dispersive spectrometer (EDS) equipped on electron microscope, and the optical absorbtion property by the ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS).
For the antibacterial test, we selected Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) as the testing strains. The initial bacterial concentration of 1 × 108 CFU / mL was prepared for antibacterial test in a dark room and in the 20-watt LED light condition. We found that the antibacterial performance became better when the oxysulfides were calcined at higher temperature. The data showed that CuMnOS had performed the excellent antibacterial activity up 99.99% even just calcined at 130 oC for one hour, no matter in the dark or under the LED illumination. Therefore, Cu-based oxysulfides can improve its antibacterial effect by doping and heat treatment. These Cu-based catalysts after the same heat treatment showed much better ability in the light illumination condition to sterilize bacteria than in the dark.

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