磁場增強石墨氮化碳基二硫化亞鐵異質接面的氮氣還原光催化劑

Abstract

在自然界中，固氮酶在環境條件下將氮氣固定成生物可用的形式，但是生物合成的方式無法迎合人們的需求，因此需要透過人工合成法達成。在現代社會中，世界上一半的固定氮是通過工業哈伯法製氨所達到人類所需，這種氨合成法需在高溫和高壓下才能進行。因此，欲藉由本篇論文提出了一種由仿生團簇二硫化亞鐵和二維層狀半導體材料石墨氮化碳共同組成的固氮酶模擬物異質接面，此光催化劑可以在環境溫度和壓力下完成光催化氮氣固定和轉化為氨分子，並且透過增加反應磁場的變化對氮氣還原具有更高的活性。本篇論文的結果將擴展材料設計和工程的範圍，以創建在溫和條件下運行的鐵基氮氣還原光催化劑。In nature, nitrogenase fixes nitrogen into a biologically usable form under ambient conditions but biosynthesis cannot meet people's needs, so it is necessary to be achieved through artificial synthesis. Nowadays, half of the fixed nitrogen of the world is produced by the industrial Haber-Bosch process to produce ammonia, which requires not only high temperature but high pressure. Therefore, this thesis, which proposes a nitrogenase-mimic heterojunction composed of bionic clusters of ferrous disulfide and two-dimensional layered semiconductor material graphitic carbon nitride, can complete the photocatalytic nitrogen fixation and conversion to ammonia molecules at ambient temperature and pressure. What’s more, it has higher activity for nitrogen reduction reaction by increasing the change of the stimulated during the reaction. The results of the thesis reported here will expand the scope of materials design and engineering to create iron-based nitrogen reduction photocatalysts that operate under mild conditions.