合成具有偵測氧氣及氨氣分子的奈米中孔洞材料及聚醯胺酸高分子

Synthesis and oxygen-, ammonia- sensing properties of functionalized mesoporous SBA-15 and poly(amic acid) polymer

湯素瑩(Su-Ying Tang)

指導教授 ： 鄭吉豐

中原大學/理學院/化學研究所/碩士(2011年)

https://doi.org/10.6840/cycu201100118

摘要

本篇論文中針對氧氣及氨氣的氣體感測探討，透過後修飾和共縮合的方式合成出含染料的奈米孔洞材料，染料以化學鍵結的方式鍵結在孔洞材料的孔壁表面及孔壁內部；PAA高分子為基材合成出的染料高分子薄膜，染料以共價鍵結的方式在高分子基材上。我們可藉由Mass、FT-IR、固態核磁共振、氮氣等溫吸附/脫附儀、等儀器去做樣品的鑑定測試。
在偵測氧氣方面，使用含染料奈米中孔洞材料接觸21%氧氣反應時間只需要1.38秒。而在偵測氨氣方面，使用含染料奈米中孔洞材料接觸氨氣反應時間45.6秒，使用含染料高分子薄膜接觸氨氣反應時間1.5分鐘。一般的氣體感測只能依靠機器來偵測，而本實驗合成出的兩種材料只要一接觸氧氣或氨氣，肉眼就可看出變化，也可重覆在使用等優點。

關鍵字

氧氣 ； 中孔洞材料 ； 氨氣

並列摘要

In this study, dye-containing nano-materials (Co SBA-15-dye, SBA-15-dye) and polymer containing dye (PPA-dye) were synthesized by modification and condensation as potential materials for oxygen and ammonia sensor. Product characterization was done using fourier transform infrared spectroscopy (FT-IR), magic angel spinning solid-state nuclear magnetic resonance (MAS Solid State NMR), N2 adsorption/desorption isotherm, and fluorescence spectroscopy. While oxygen and ammonia detections were conducted using UV-Vis spectroscopy.
For oxygen detection, SBA-15-dye which was in contact with 21% oxygen produced a response time of 1.38 seconds. While for ammonia detection, co-SBA-15-dye exposed with ammonia produced a response time of 45.6 seconds as compared to PAA-dye having a response time of 1.5 minutes.
Generally, gas sensing can be detected through mechanical device. However, by the experimental synthesis of two materials, color changes were observed when exposed to oxygen and ammonia, thus, detection of the said gases can be observed through the naked eye. With this observation qualitative detection for oxygen and ammonia can be easily conducted by simply observing color changes of the product and can be conveniently use for detection of gas pollution.

並列關鍵字

oxygen ； mesoporous ； ammonia

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