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標題: | 功能性奈米複合物應用於環境保護與健康監控 Functional Nanocomposites for Environmental Protection and Healthcare Monitoring |
作者: | 簡巧雯 Chiao-Wen Chien |
指導教授: | 廖尉斯 Wei-Ssu Liao |
關鍵字: | 環境保護,奈米複合物,光觸媒,抗生素,醫療監控,無線壓力感測器,壓瘡, environmental protection,heteronanostructures,photocatalysis,antibiotic,healthcare monitoring,wireless pressure sensors,pressure injury, |
出版年 : | 2023 |
學位: | 碩士 |
摘要: | 本研究探討了奈米材料在環境和醫療監控方面的應用,主要分為兩部分。
第一部分針對水中氯黴素 (chloramphenicol) 進行光催化降解,利用水熱法合成Bi2S3/ZrO2和Bi2WO6/ZrO2奈米複合物,並通過各種技術對其進行結構鑑定與光譜分析。研究結果說明,這些奈米複合物在可見光照射下具有加快降解氯黴素的能力。二氧化鋯 (ZrO2) 和鉍的複合物所形成異質結(heterojunction)提升了光催化效果,15分鐘內可達到96%的降解率。使用過硫酸氫鉀 (Peroxymonosulfate)活化劑可以將光催化降解速率增加近5倍。奈米複合物的催化能力來自於光誘導電荷載體產生和電子電洞的協同效應,因此提供一種高效能的奈米複合物用於降解水中汙染物。 第二部分研究開發低成本拋棄式壓阻感測裝置器,以預防壓力創傷。研究利用濾紙和不同比例的奈米碳管 (CNT) 和PEDOT開發出壓力感測器。經實驗證明,CNT與PEDOT聚集在一起可以形成導電點,增強感測器的壓阻效能,不同比例的CNT和PEDOT會導致梯度式導電點,進而使感測器的性能提高,靈敏度達到0.68Pa-1,並可在0-28 kPa得到良好的線性關係。此外,此壓力感測器具有超薄的特性(厚度為一‧二公分),不僅對於皮膚具有很好的貼合能力,也具有高耐久性和穩定性,將其結合藍芽功能,即可開發一款無線的壓力感測器。這種新型的壓力感測裝置的設計為臨床的壓力監測提供了新穎的方法。 簡而言之,本研究探討了奈米材料在不同應用方面的應用,為開發具有廣泛應用領域的創新感測技術提供了更多元的可能。 Nanomaterials offer a promising platform for developing various high-performance applications. This thesis focuses on developing and characterizing nanocomposites for environmental and healthcare applications, with particular emphasis on using heteronanostructures and paper-based sensors. Project 1: Implementation of Visible Light-driven Photocatalytic Degradation of Antibiotic Chloramphenicol Using Bi2S3/ZrO2 and Bi2WO6/ZrO2 Heteronanostructures Heteronanostructures (HNSs) of Bi2S3/ZrO2 and Bi2WO6/ZrO2 were synthesized through a two-step hydrothermal process and characterized using various analytical techniques to confirm their structural and optical properties. These HNSs were used as photocatalysts for the degradation of the antibiotic chloramphenicol (CAP) under visible light irradiation. The inherent advantages of ZrO2 and bismuth-based nanoparticles yielded significant catalytic activity, with ~96% degradation of CAP achieved within 15 minutes. The inclusion of peroxymonosulfate as an activator for oxidative catalytic reactions led to nearly 5-fold increase in the photocatalytic degradation rate. The highly improved catalytic activity was due to the synergistic effects of the efficient generation and separation of photoinduced charge carriers. These inorganic-based HNSs have the potential to serve as promising photocatalysts in the field of contaminated water remediation and offer a versatile platform for the fabrication of new photocatalytic materials. Project 2: Economical One-time-used Metal-Free Sensing Devices for Pressure Injury Prevention Paper-based sensors have emerged as promising alternatives due to their abundant availability, cost-effectiveness, lightweight nature, and recyclability. However, the non-conductive nature of paper poses challenges in achieving satisfactory sensor performance, particularly in terms of sensitivity and detection capability. This study addresses these challenges by introducing gradient-based structures within the sensor, presenting a novel paper-based pressure sensor (PBPS). The PBPS shows high pressure-sensing properties, flexibility, and enhanced sensitivity to achieve a notable sensitivity of 0.68 kPa-1 and a wide detection range of 0-28 kPa. By integrating two layers of flexible electrodes and a sensing layer, the PBPS offers an affordable, disposable, and high-performance solution for medical equipment and physiological monitoring. Additionally, the incorporation of a Bluetooth module enables wireless connectivity, further enhancing the sensor's usability and data accessibility. This research represents a significant advancement in wireless paper-based pressure sensors, with promising applications in healthcare systems, smart homes, and wearable technologies. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/90640 |
DOI: | 10.6342/NTU202302256 |
全文授權: | 同意授權(限校園內公開) |
顯示於系所單位: | 化學系 |
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