鋅金屬化竹活性碳之抑菌效果

本研究係以奈米氧化鋅及氯化鋅與活性碳混合，並分別以物理法及化學法製備金屬化活性碳，藉由掃描式電子顯微鏡(SEM)，評估其表面構造，同時測定大腸桿菌（Escherichia coli，簡稱E. coli）、金黃色葡萄球菌（Staphylococcus aureus，簡稱S. aureus）菌數，期以了解金屬化活性碳之抑菌效能及基本性質。SEM的照片顯示，經奈米氧化鋅處理者，奈米氧化鋅以細小粒子形態分散在活性碳之表面，較不易堵塞活性碳孔隙。鋅金屬化活性碳之碘值隨金屬的濃度增加而下降。各種處理條件活性碳對E. coli及S. aureus之抑菌效果顯示，未經金屬化之竹活性碳者並沒有抑菌效果，且會增加水中菌的滋長。而經鋅金屬化者，抑菌率能達到99.9%。

關鍵字

奈米氧化鋅；金屬化活性碳；抑菌效能

並列摘要

Preparation of antibacterial activated carbon was performed in this study. Our antibacterial activated carbon was obtained by mixing activated carbon with nanosized zinc oxide and zinc chloride under physical and chemical methods. Scanning electron microscopy (SEM) and antibacterial efficiency tests of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were applied to understand the basic properties of metalized activated carbon and its antibacterial effects. The SEM images showed that nanosized zinc oxide was dispersed on the surface of activated carbon in the form of tiny particles and did not plug the pores of the activated carbon. Its iodine value decreased with the rising metal concentration. The antibacterial effect of metalized activated carbon on E. coli and S. aureus growth showed a bacteriostasis rate at 99.9%, while no antibacterial effect, even increasing bacterial growth, was found for the activated carbon without metalizing.

並列關鍵字

Nanosized zinc oxide ； Metalized activated carbon ； Antibacterial efficiency

國際替代計量

鋅金屬化竹活性碳之抑菌效果

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