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Advanced materials and techniques for rapid detection and effective adsorption of orthophosphates |
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| รหัสดีโอไอ | |
| Title | Advanced materials and techniques for rapid detection and effective adsorption of orthophosphates |
| Creator | Jirawan Jindakaew |
| Contributor | Pakorn Opaprakasit, Advisor |
| Publisher | Thammasat University |
| Publication Year | 2567 |
| Keyword | Orthophosphate adsorption, Metal-organic frameworks, Latex agglutination, Molecularly imprinted polymers, Electrochemical sensing, การดูดซับออร์โธฟอสเฟต, โครงข่ายโลหะอินทรีย์, ปฏิกิริยาการเกาะกลุ่มของลาเท็กซ์, พอลิเมอร์พิมพ์รอยโมเลกุล, การตรวจวัดทางเคมีไฟฟ้า |
| Abstract | Industrial water cooling systems often face significant challenges, especially corrosion and scale formation, leading to increased maintenance costs, reduced system performance, and environmental concerns. To address the issues, 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC) is widely used as a corrosion inhibitor reagent due to its unique chemical structure, which offers high solubility and versatility in preventing scale formation. However, optimizing the PBTC level is essential to avoid underdosing or overdosing, resulting in inefficiencies, increased energy consumption, and ecological concerns such as eutrophication. Traditional methods for PBTC monitoring are often labor-intensive, time-consuming, need chemical reagents, and unsuitable for real-time applications. This dissertation focuses on developing advanced materials and effective technology for rapid detection and enhanced adsorption of PBTC.In the detection section, amine-functionalized polystyrene latex nanoparticles synthesized via emulsifier-free emulsion polymerization enabled rapid PBTC monitoring through latex agglutination, offering simplicity and practicality by mapping aggregation domains under varying PBTC concentrations and pH levels. Furthermore, an electrochemical impedance spectroscopy (EIS) sensor utilizing molecularly imprinted polymers (MIPs) was developed, providing high sensitivity and selectivity for PBTC detection in real-time applications. For adsorption, polyethylene terephthalate (PET) waste was upcycled into the linker source for aluminum-based metal-organic frameworks (MOFs) synthesis, providing an effective solution for orthophosphate removal while promoting sustainable waste management. Further, magnetic@MOF adsorbents fabricated via layer-by-layer techniques demonstrated high capacity and efficiency across diverse environmental conditions. This research highlights the integration of sustainable materials and advanced detection techniques, offering innovative solutions for industrial PBTC management and decontamination. The findings contribute to improving operational efficiency, minimizing ecological risks, and innovative the development of smart materials for industrial and environmental applications. |
