Research

金屬有機框架材料或金屬有機骨架材料 (Metal Organic Frameworks, MOF), MOF由有機配體配位的金屬原子或原子簇構成一維、二維或三維的結構; 而共價有機框架材料或共價有機骨架材料(Covalent Organic Frameworks, COFs)是在其延展結構中具有通過強共價鍵結合的構建單元的二維或三維的有機固體。本研究團隊針透過MOF及COF所具備之多孔特性探討不同水中(如農藥去除及分解)及空氣中汙染物(二氧化碳及VOC)之捕捉, 同時也探討在不同配位體, 金屬節點, 或者有機單體所建構下之吸附, 材料光學, 及觸媒特性

可攜式環境感測器結合便利性及快速檢測之特性, 預期達到現地快篩之用途, 本研究團隊針對不同環境汙染物之特性進行設計, 於奈米顆粒表面修飾特定官能基與環境汙染物進行反應, 進而產生顏色上的變化, 並且透過UV及可攜式拉曼輔助環境汙染物的判定, 以銅離子為例, 目前可偵測濃度範圍為0.5至20ppm, 而且在1分鐘內完成偵測, 同時也與ICP-OES相比對, 在無需經過前處理的情況下量測, 準確性可達到99.3%.

水凝膠主要具有高度親水特性, 因此本研究團隊透過半導體製程製備水凝膠吸附劑或水凝膠觸媒, 目前可針對水中不同金屬離子達到選擇性去除或提純, 而且在再生應用上也可達到90%以上之再生效率, 達到可重複使用之目的已降低使用成本; 除了水凝膠吸附劑之外, 本研究團隊也將水凝膠材料衍生至單分子觸媒, 光觸媒以及生物觸媒的開發, 預期將水中汙染物轉化解將低對於環境的衝擊, 目前針對全氟化合物, 環境賀爾蒙及農藥為主要討論對象

薄膜科技為一種有效的分離技術之一,薄膜分離技術的運用日益增大,相較於傳統的分離程序,薄膜分離程序具有許多優點,包括擁有較高的選擇性、簡易的操作流程、易於放大量產化, 本研究團隊從材料合成, 高分子特性, 薄膜成型技術等三個方面製備薄膜材料, 探討不同薄膜材料特性對於水中汙染物如何進行選擇性分離, 以染劑為例, 本團隊所開發之石墨烯複合薄膜可以有效將98%以上之染料去除, 根據化學結構的不同, 也可將染劑進行選擇性分離, 其選擇特性可達到90%; 而對於重複使用性來說, 石墨烯複合薄膜最多可重複至22次後去除效果才會有明顯下降.

Microplastics in the food chain

The major risk of microplastics in marine environments is the bioaccumulation in marine organisms. Plastic ingestion by marine organisms has been investigated and recently more attention has been given to microplastics in seafood. However, it is seldom reported the occurrence of microplastics in marine commercial dried fish products available for human consumption. Here, we report the occurrence of microplastics in 14different marine dried fish products from seven Asian countries. Microplastics were observed in most dried fish, with fibers representing ~80% of the total-microplastics. The major plastic polymers, identified using Micro-Raman spectroscopy, included polyethylene (35%), polyethylene terephthalate (26%), polystyrene (18%), polyvinyl chloride (12%), and polypropylene (9%). The highest count, in either per individual (1.92 ± 0.12) or per gram of dried fish (0.56 ± 0.03), were found in Etrumeus micropus from Japan. Marine dried fish, which are typically eaten whole, may contribute to the ingestion of microplastics by humans, posing potential health risks especially in Asian countries. Further studies are needed to identify the occurrence of smaller sized microplastics and nanoplastics and their potential health impacts.


Create your website for free! This website was made with Webnode. Create your own for free today! Get started