Project Description
US EPA has set a Maximum Contaminant Level Goal (MCLG) for lead in drinking water at 0 ppb. A fast and selective lead ion detection using a portable sensor is required in the presence of interfering metal ions and other contaminations. This project aims to develop a sensitive, selective, and low-cost portable sensor for lead ion detection. By integrating advanced materials such as ion-imprinted polymers and composites with a strong affinity for Pb²⁺ ions, the proposed electrode will provide sensitive Pb2+ detection and superior selectivity in water. The sensing materials can be embedded in portable detection kits and on-site water testing devices, specifically designed for point-of-use applications.
Tasks and Responsibilites
The student will participate in the design and modification of the electrode materials and lead ion detection measurements. He/she will be fully involved in material development, sample characterizations, and electrochemical measurements. Specifically, he/she will join the following experimental work:
1. Characterize Composite Material: Analyze the physical and chemical properties of the designed electrode material, emphasizing surface area, porosity, conductivity, and Pb²⁺-imprinting fidelity.
2. High Detection Sensitivity and Selectivity: Demonstrate detection of Pb²⁺, with strong selectivity over competing cations like Ca2+, Cd²⁺, Cu²⁺, and Zn²⁺.
3. Prototype Sensor for Practical Monitoring: Develop a functional device or electrode system for point-of-use Pb²⁺ detection in drinking and environmental water.
4. Rapid and Reliable Performance.
Desired Qualifications
None listed.