液相與氣相的光催化反應已被廣泛的探討，其中應用於毒化物的處理方面更是被熱烈的研究。本研究之目的在於使用被覆奈米級TiO2之玻璃珠之填充床來處理三氯乙烯（Trichloro- ethylene，TCE）氣體，改變進氣流量、濃度及溼度以及反應溫度來探討其對於TCE之去除率、反應速率與礦化率之影響。實驗並輔助以批次反應器來探討反應溼度對於礦化率影響。實驗結果顯示，TCE之去除效率隨氣體流量的減少、入口濃度的下降、反應溼度的下降而上升。對於TCE的反應速率而言，最佳之氣體流量為300ml/min，而在反應溫度的研究發現在高滯留時間時，去除效率隨溫度上升而上升但在低滯留時間時反應在50℃時有一最佳值，這是因為在低滯留時間時溫度過高會造成TCE在觸媒表面之吸附能力下降而使其成為速率決定步驟，故造成去除效率下降。而在批次反應器之研究發現，TCE之礦化率隨溼度上升而下降，與連續式反應器結果類似。

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