結論

1. 本 研 究 成 功 以 光 化 學 反 應 程 序 以 及 水 熱 法 合 成 出 具 異 質 結 構 的 ZnO2/ZnO 型態的觸媒，並且以光催化降解效果得到最適化合成條件的 ZnO2/ZnO 觸媒(S25-140-2)。

2. 由 ZnO2/ZnO 的材料分析中得知，ZnO2製備時其雙氧水的添加量會顯著 影響其脫氧的效果，而這關乎於水熱時所需掌握的時間與溫度，含氧量 越多的ZnO2其所需的加熱時間也越長、所需的溫度也越高。

3. 當由 ZnO2製備ZnO2/ZnO 時，過高的溫度會使其形成 ZnO，而過低的溫 度則不足以使其相變。而當加熱時間越長，其ZnO2也越容易聚集成ZnO。

4. 本研究所使用的光化學反應程序可以有效的使Pt金屬還原並負載於材料 表面，並且藉由CV染料的光催化降解而在酸鹼環境中各別所最適的觸媒 合成條件。

5. 由Pt-ZnO改質的實驗中得知，不同添加量的氯鉑酸會使的Pt在材料表面 的價態有所不同，進而影響其所適用的pH值範圍，然而當Pt負載的量過 多時，其ZnO進行光催化反應的活性部位就會被覆蓋，反而會降低其光 催化降解活性。

6. 由藉由HPLC-PDA-ESI-MS的系統，本研究可以成功鑑定ZnO2/ZnO與 Pt-ZnO對CV染料降解所產生的中間產物，及其降解機制，結果顯示其光 催化降解系統中會有去甲基以及共軛環破壞的兩種催化降解路徑。

7. 藉由由ZnO2/ZnO光催化降解CAP的試驗中，本研究成功的分離鑑定出 CAP及12個中間產物，並提出其三種類型的降解機制。

132 5.2 未來建議

1. 以ZnO2/ZnO 及 Pt-ZnO 可應用於降解其他有機污染物並探討其效率與 反應機制。

2. 對市售的ZnO 改質成 ZnO2/ZnO 型態的觸媒，探討其是否能有效的提升 光催化降解效果。

3. 可以探討不同金屬對ZnO 改質所造成的光催化降解效果的影響。

4. 探討光催化降解觸媒對於能源發展的應用。

5. 可以嘗試其它類型的改質方法，例如微波水熱。

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