氧化亞銅沸石混成觸媒系統於室內空氣中除菌之研究

Effect of Cuprous Oxide Hybrid Zeolite-Supported Catalysts to Remove Indoor Bioaerosols

本研究以不同比例（1、3、5、30、50 wt%）氧化亞銅（Cu2O）與沸石（zeolite）擔體混成，製備Cu2O/zeolite混成觸媒。並將製備之混成觸媒填充於管柱，在流量28.3、40及60 lpm下進行除菌實驗，探討除菌效率。X光繞射光譜儀分析結果顯示，混成觸媒低溫（105℃）進行製備，以確保Cu2O不會氧化成CuO。而由過濾實驗得知，當純沸石90 g過濾處理後之細菌、真菌除菌率僅為72%、60%，但經3 wt%Cu2O/zeolite混成觸媒90 g之系統處理後，細菌、真菌除菌率提高為94%、96%，而當連續24小時耐久性實驗後，細菌、真菌之除菌率仍有高達約80%，顯示Cu2O具有抑制細菌生長之功能，混成觸媒床不易成為細菌孳生之環境，顯示本研究製備之混成觸媒除有過濾功能外更有持續之良好除菌效能。

Cuprous oxide (1, 3, 5, 30, 50 wt%) hybrid zeolite-supported was prepared as Cu2O/zeolite hybrid catalysts. The effect of treating indoor bioaerosols was studied by using these hybrid catalysts in a column system with 28.3, 40 and 60 lpm flow rates. The XRD results indicated that the suitable condition for preparing these hybrid catalysts was at 105℃ _avoiding oxidation. The efficiencies of filtrating indoor bacteria and fungi aerosols were only 72% and 60% using 90 g of zeolite. However, using 3% Cu2O/zeolite hybrid catalysts, the degradation increased to 94% and 96%. In addition, the result in a 24 hours treating experiment, the efficiencies of bacteria and fungi aerosols both kept about 80%, showing the restraining the growth of indoor bioaerosols by Cu2O. Cu2O/zeolite hybrid catalysts not only had the function of filtration but also better effect of degradation in indoor bioaerosols.