活性氧物質的高活性特質，使其被科學家應用於環境與健康相關議題。一般利用觸媒產生活性氧物質的方法有兩種，分別為光觸媒或是壓電觸媒。兩者間的差異在於誘導方式不同：前者是利用光線激發；後者是利用外界環境外力激發。然而「溫度」為另一種常見但卻尚未被研究應用於觸媒催化的影響因子。故在此研究，我們開發了利用溫度變化作為激發觸媒產生活性氧物質的觸媒，稱之為「熱觸媒」。本研究發現，只要材料具有熱電效果的特性，再藉由外界溫度差的調整即能產生活性氧物質。當環境的溫度差增加，所產生活性氧物質的量也會提升。活性氧物質能和細菌表面作用，造成氧化壓力，使其失去活性死亡，故使此觸媒能運用在殺菌上。為了在日常生活中更加方便使用，本研究將熱觸媒（三碲化二鉍）塗在碳纖維布料上，作為抗菌濾網。無論是在冷熱環境的溫度差下，此布料皆具有抗菌效果。本研究結果顯示，熱電觸媒具有極大的潛力在需要活性氧物質的應用上。

The highly reactive nature of reactive oxygen species (ROS) makes it an ideal candidate for various environmental and health applications. In general, traditional catalysts used for ROS generation are only photocatalysts and piezocatalysts. Among them, the former is induced by light, while the latter is triggered by force. However, temperature is another common but not yet studied catalytic factor in the environment. In this work we have tried to use temperature as one of the controlling factors for the production of ROS and therefore came up with a novel kind of catalyst called thermal catalysts. We successfully used thermoelectric materials as thermalcatalysts to generate ROS by controlling the temperature difference. As the temperature difference increases, the amount of the ROS generated increases. Afterwards, the produced ROS can kill the bacteria by causing oxidative damage, which makes the thermalcatalyst ideal for use in disinfection. Moreover, in order to increase the practicality in daily life, bismuth telluride (Bi2Te3), serving as the thermal catalyst, was coated on the carbon fiber fabrics (Bi2Te3@CFFs) as an antibacterial filter. Irrespective of the temperature gradient being positive or negative, Bi2Te3@CFFs always had an antibacterial effect. In conclusion, the thermal catalysts provide a great potential for ROS-related applications.

摘要 I
Abstract II
List of Contents III
List of Figures V
Chapter 1 Introduction 1
Chapter 2 Literature Review and Theory 6
2.1 Thermoelectric Materials 6
2.1.1 Thermoelectric Effect 6
2.1.2 Bismuth Telluride (Bi2Te3) 7
2.2 Catalysts and Reactive Oxygen Species (ROS) 9
2.2.1 Photocatalyst 9
2.2.2 Piezocatalyst 11
2.2.3 Hydrogen Peroxide (H2O2) 13
Chapter 3 Experimental Section 15
3.1 Material and Reagent 15
3.2 Instrument 16
3.3 The Synthesis of Bi2Te3 NMs 17
3.4 The Synthesis of Bi2Te3@CFFs 17
3.5 Characterization 18
3.6 Bacteria Culture 18
3.6.1 Bacterial Preparation 18
3.6.2 Agar Plate Culture Bacteria 19
3.6.3 Disinfection Performance 20
3.7 H2O2 Detection 22
Chapter 4 Result and Discussion 24
4.1 H2O2 Generation by a Temperature Gradient 24
4.2 Characterization of Bi2Te3 NMs 30
4.3 Mechanism 32
4.4 H2O2 Generation Efficiency 36
4.5 Characterization of Bi2Te3@CFFs 39
4.6 Application in Disinfection 42
Chapter 5 Conclusion 46
Reference 47
Conference 52

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